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"Latar belakang: Teknik radiasi ekstrakorporeal merupakan alternatif tindakan pembedahan penyelamatan ekstremitas pada kasus osteosarkoma khususnya di pusat layanan dengan keterbatasan endoprostesis dan alograf. Penelitian ini bertujuan untuk mengevaluasi hasil tindakan pembedahan penyelamatan ekstremitas dengan otograf yang diradiasi secara ekstrakorporeal pada pasien-pasien osteosarkoma yang datang ke RSCM.Metode: Studi ini menggunakan desain kohort retrospektif yang dilakukan pada 20 pasien osteosarkoma stadium IIB yang diterapi dengan pembedahan penyelamatan ekstremitas dengan otograf yang diradiasi secara ektrakorporeal selama periode 1995-2008. Dilakukan evaluasi terhadap angka kesintasan, rekurensi lokal, metastasis, komplikasi, lamanya unifi kasi, dan skor fungsional menurut sistem skor Musculoskeletal Tumor Society Scoring System (MSTS). Metode Kaplan-Meier digunakan untuk mendeskripsikan kesintasan, angka rekurensi lokal, kesintasan bebas tumor, dan kesintasan bebas metastasis. Hubungan variabel-variabel seperti usia, jenis kelamin, lokasi tumor, ukuran tumor, tipe osteosarkoma, kadar alkali fosfatase serum, jenis biopsi, dan klasifi kasi Huvos dianalisis dengan uji log rank. Uji chi-square digunakan untuk menganalisis hubungan antara skor MSTS dan karakteristik pasien, angka rekurensi, metastasis, serta komplikasi.Hasil: Kesintasan 5 tahun 54,97 ± 9,8%, kesintasan bebas rekurensi lokal 5 tahun 66,5 ± 7,6%, dan kesintasan bebas metastasis 5 tahun 57,13 ± 10,04%. Enam pasien meninggal dunia, lima disebabkan oleh metastasis ke paru dan satu karena toksisitas kemoterapi. Tiga pasien menjalani konversi amputasi karena rekurensi lokal. Kurva Kaplan-Meier menunjukkan Huvos (III,IV) selalu memberikan angka kesintasan, kesintasan bebas rekurensi lokal, dan kesintasan bebas metastasis yang lebih baik daripada Huvos (I, II). Kadar alkali fosfatase serum yang normal selalu memberikan kesintasan bebas rekurensi lokal yang lebih baik dibandingkan dengan kadar alkali fosfatase serum yang meningkat. Angka unifi kasi rata-rata 8,13 bulan. Skor MSTS dengan hasil baik (70,63%) dijumpai pada pasien yang bebas osteosarkoma pasca terapi, tetapi skor MSTS dengan hasil buruk dijumpai pada pasien dengan rekurensi lokal (p=0,025), metastasis (p=0,01), pasien dengan komplikasi (p=0,03), dan kombinasi ketiganya (p=0,001).Kesimpulan: Luaran fungsional dengan skor MSTS baik (70,63%) didapatkan pada pasien yang bebas osteosarkoma pasca terapi, skor MSTS buruk dijumpai pada pasien dengan rekurensi lokal, metastasis, pasien dengan komplikasi, dan kombinasi ketiganya. (Med J Indones 2011; 20:131-7).

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Background: Extracorporeally irradiated (ECI) technique is an alternative of limb salvage procedure in treating osteosarcoma regarding limitation of endoprosthesis and allograft. This study evaluated the outcomes of limb salvage surgery using extracorporeally irradiated (ECI) autograft and its correlation with patientâ??s characteristics.

Methods: Retrospective cohort design was performed to study 20 patients with stage IIB osteosarcoma treated by ECI autograft from 1995 to 2008. Survival, local recurrence, metastases, complications, union time and functional score based on Musculoskeletal Tumor Society scoring system-(MSTS) were evaluated. Kaplan-Meier method was used to describe survival, local recurrence free survival, and metastases free survival. The correlation among patientâ??s characteristics that were age, gender, duration, site of tumor size, type of osteosarcoma, SAP (serum alkaline phosphatase) level, type of biopsy, and type of Huvos were analyzed by Log rank test. Chi-square test was used to analyze the correlation between MSTS score and patientâ??s characteristics, local recurrence, metastases, complications.

Results: Five-year survival was 54.97 ± 9.8 %, fi ve-year local recurrence free survival was 66.5 ± 7.6%, and fi ve year metastasis-free survival was 57.13 ± 10.04%. Six patients died, fi ve were due to lung metastases and one due to complication of chemotherapy. Three underwent amputation after local recurrence. Kaplan-Meier curve showed that a good type of Huvos (III, IV) always gave better survival, local recurrence free survival, and metastases free survival than poor type of Huvos (I,II). Normal SAP level gave better local recurrence free survival compare to increased level of SAP. Mean of union rate was 8.13 months. MSTS mean score was good (70.63%) in patients with no evidence of disease. MSTS score was poor in patients with local recurrence (p=0.025), metastases (p=0.01), complications (p=0.03), and the combined of those three outcomes (p=0.001).

Conclusions: Functional outcome was poor in patients with local recurrence, metastases, and complications. SAP level and type of Huvos could be studied further as predictive factors for the outcomes (survival, local recurrence, metastases). (Med J Indones 2011; 20:131-7)."

"Periosteal osteosarkoma merupakan tumor ganas tulang yang jarang didapat, dibentuk dari sarkoma tulang dengan didominasi komponen tulang rawan yang berdiferensiasi dan tumbuh pada permukaan tulang. Penelusuran kepustakaan tidak banyak menyebutkan mengenai kasus ini. Laporan kasus ini terakhir dilaporkan oleh Klinik Mayo tahun 1999. Kami laporkan satu kasus periosteal osteosarkoma pada penderita laki-laki berusia 17 tahun. Penderita menjalani tindakan pembedahan berupa prosedur ?limb salvage?, dengan pra dan pasca bedah penderita mendapat kemoterapi (neo-ajuvan dan ajuvan). Tidak ditemukan rekurensi lokal dan metastasis di paru, pada follow up sampai dengan 14 bulan pasca bedah. (Med J Indones 2003; 12: 166-70)

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Periosteal osteosarcoma is a rare type of malignant bone neoplasm, with predominantly cartilaginous component and arising on the bone surface. Reports of the case in the literature were rare. Last case was reported by Mayo Clinic in 1999. We report a case of periosteal osteosarcoma in a 17-year-old male, who was treated surgically with a limb salvage procedure, neoadjuvant and adjuvant chemotherapy were also given to the patient. There was no local recurrence and lung metastases up to 14 months after surgery. (Med J Indones 2003; 12: 166-70)"

"Walaupun masih kontroversial, jenis kelamin dan umur diduga sebagai faktor prognostik yang mempengaruhi angka kesintasan osteosarkoma (suatu keganasan tulang yang umum terjadi pada anak-anak dan dewasa muda). Oleh karena itu, penelitian ini bertujuan untuk mengetahui angka kesintasan pasien osteosarkoma di RSCM selama periode waktu enam tahun (2006-2011) dan mengaitkannya dengan umur dan jenis kelamin. Studi potong-lintang ini menggunakan rekam medis 167 pasien osteosarkoma di Departemen Ortopedi dan Traumatologi Rumah Sakit Cipto Mangunkusumo (RSCM). Studi ini menunjukkan bahwa usia lebih muda saat didiagnosis berkaitan dengan respon yang lebih baik terhadap kemoterapi (p=0,028). Jenis kelamin perempuan berkaitan secara signifikan dengan stadium penyakit yang lebih rendah (p=0,04), respon yang lebih baik terhadap kemoterapi (p=0,016), dan berkurangnya risiko metastasis (p=0,008). Median waktu kesintasan pada studi ini adalah 12 bulan, yang disebabkan oleh pendeknya masa pemantauan pasien. Walaupun terdapat keterbatasan, angka kesintasan pasien perempuan lebih baik secara signifikan daripada pasien laki-laki. Angka kesintasan pada golongan usia yang lebih muda menunjukkan kecenderungan lebih baik, walau tidak signifikan secara statistik. Hasil uji multivariate tidak menunjukkan bukti tentang adanya keterkaitan stadium penyakit, respon kemoterapi, dan metastasis terhadap kesintasan. Sebagai kesimpulan, jenis kelamin perempuan berkaitan dengan tumor yang lebih favourable dan angka kesintasan yang lebih tinggi.

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In order to improve the plateaued average 70% survival of osteosarcoma patients, prognostic factors has to be identified to improve adjustment according to patient's characteristics. Female gender and younger age at diagnosis have been suggested as good prognostic factors though inconclusive. Therefore, this study aims to determine the survival rate of osteosarcoma patients admitted to Cipto Mangunkusumo Hospital from 2006 to 2011 and correlate it with age and gender. This cross-sectional study used the medical records of osteosarcoma patients admitted in the department of Orthopedics and Traumatology Cipto Mangunkusumo Hospital. Records of 167 patients were retrieved for this study.

This study shown that younger age was associated with better chemotherapeutic response (p=0,028). Meanwhile, female gender was associated with less advanced disease at presentation (p=0,04), better chemotherapeutic response (p=0,016), and less risk for metastasis (p=0,008). The median survival in this study was 12 months, an underestimation due to short followup duration. Still, female patients survived longer than males. We showed a trend of better survival for younger patients, however the result was not significant. Multivariate analysis failed to show any correlation between various tumor-related variables with survival."

"Latar Belakang: Osteosarkoma merupakan jenis tumor tulang ganas paling sering pada anak dan remaja. Sejumlah faktor prognostik telah diketahui mempengaruhi luaran pada osteosarkoma pediatrik, termasuk lokasi dan ukuran tumor primer, adanya metastasis, resektabilitas, keadaan remisi, serta respons kemoterapi yang diperiksa dengan derajat nekrosis tumor. Penelitian ini bertujuan untuk mengetahui luaran osteosarkoma pada anak dan faktor-faktor yang mempengaruhinya.Metode: Penelitian ini merupakan studi observasional dengan desain cross sectional. Penelitian dilakukan di poliklinik Onkologi Orthopaedi Rumah Sakit Cipto Mangunkusumo, Jakarta pada bulan Januari 2020-Juni 2021. Pengambilan subjek penelitian dilakukan berdasarkan metode consecutive sampling. Data klinis, radiologis dan laboratorium diambil dari rekam medis, sementara skor MSTS diukur melalui wawancara terhadap subjek baik secara langsung atau pun melalui telepon. Data pasien dimasukkan ke dalam CRF (Case Report Form) untuk osteosarkoma dari Departemen Orthopaedi dan Traumatologi. Seluruh data dianalisis dan ditabulasikan ke dalam tabel.Hasil dan pembahasan: Pada penelitian ini, angka kesintasan keseluruhnan kasus osteosarkoma adalah 31,8%, dan rekurensi lokal terjadi pada 18,2% kasus pasien osteosarkoma anak. Metastasis terjadi pada 65,9% kasus dan sebagain besar metastasis ditemukan pada paru. Didapatkan jenis kelamin berhubungan dengan kesintasan pada pasien osteosarkoma (P<0,05). Hubungan kesintasan dengan usia sampel tidak bermakna, namun terdapat hubungan signifikan antara kesintasan dengan alkalin fosfatase, jenis biopsi, lokasi tumor, dan tipe HUVOS. Terdapat hubungan signifikan antara rekurensi lokal dengan nilai serum alkaline fosfatase, namun tidak terdapat hubungan signifikan antara rekurensi lokal jenis kelamin dan usia, jenis biopsi, tipe HUVOS, dan lokasi tumor. Rata-rata skor MSTS dari 14 subjek penelitian adalah 20,93 ± 3,63. Tidak terdapat perbedaan signifikan antara metastasis dengan jenis kelamin, usia, alkalin fosfatase, jenis biopsi, tipe HUVOS, dan lokasi tumor. Terdapat hubungan signifikan antara rekurensi lokal dan alkaline fosfatase (P < 0,05). Kesintasan dan metastasis memiliki perbedaan yang signifikan (P < 0,001).Kesimpulan: Terdapat hubungan yang bermakna antara kadar alkaline fosfatase terhadap rekurensi lokal pada anak dengan osteosarkoma. Terdapat hubungan yang bermakna antara metastasis dengan kesintasan 5 tahun pada anak dengan osteosarkoma. Hal ini menandakan bahwa angka kesintasan tinggi pada pasien yang tidak mengalami metastasis.

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Background: Osteosarcoma is the most frequent malignant bone tumor in children and adolescents. A number of prognostic factors have been known to affect the outcomes of pediatric osteosarcoma, including the location and size of the primary tumor, the presence of metastasis, resectability, remissions, and the chemotherapy response examined by the degree of tumor necrosis. This study aims to determine the outcomes of osteosaroma in children and the factors that influence it.

Methods: This was an observational analytic study with a retrospective cross sectional design. The study was conducted at the Orthopedic Oncology Polyclinic Cipto Mangunkusumo Hospital, Jakarta in January 2020 – June 2021. The research sampling was carried out based on the consecutive random sampling method. Clinical, radiological and laboratory data were documented from medical records, while the MSTS score was measured through interviews on the subject both directly or by telephone. Patient data was inserted into the CRF (Case Report Form) for osteosarcoma from the orthopedic and traumatology department. All data were analysed and tabulated into the table.

Results and Discussion: In this study, the overall 5 years survival rate of osteosarcoma was 31.8%, and the local recurrence is 18.2% of pediatric osteosarcoma patients. Metastases occurred in 65.9% of cases and most of the metastases were found in the lung. It was found that gender was significanced with survival in osteosarcoma patients (P<0.05). The relationship between survival and age was not significant, but there was a significant relationship between survival and alkaline phosphatase, type of biopsy, tumor location, and type of HUVOS. There was a significant relationship between local recurrence and serum alkaline phosphatase, but there was no significant relationship between local recurrence, gender and age, type of biopsy, HUVOS type, and tumor location. The mean of MSTS score of the 14 study subjects was 20.93 ± 3.63. There was no significant difference between metastases by sex, age, alkaline phosphatase, type of biopsy, type of HUVOS, and tumor location. There was a significant relationship between local recurrence and alkaline phosphatase (P < 0.05). There was a significant difference between survival and metastasis (P < 0.001).

Conclusion: There was a significant relationship between alkaline phosphatase level and local recurrence in children with osteosarcoma. There was a significant association between metastasis and a 5-year mortality in children with osteosarcoma"

"Latar belakang : Osteosarkoma merupakan tumor ganas primer tulang yang paling banyak ditemukan pada anak dan dewasa muda. Patogenesisnya melibatkan berbagai perubahan gen yang kompleks. Jalur utama yang berperan dalam patogenesis antara lain jalur protein Retinoblastoma (Rb). p16 bekerja sebagai tumor suppressor pada jalur Rb dalam menghambat pembelahan sel tumor. Salah satu faktor prognosis osteosarkoma adalah respon kemoterapi yang dinilai melalui pemeriksaan histopatologik berdasarkan luasnya nekrosis tumor. Obat kemoterapi dan p16 keduanya bekerja sama didalam menghambat pembelahan sel dan memicu apoptosis. Beberapa penelitian menyebutkan hilangnya fungsi p16 berkaitan dengan tingginya progresivitas sel tumor dan respon terapi yang buruk. Tujuan penelitian ini adalah mencari hubungan antara ekspresi p16 dengan respon histologik kemoterapi neoadjuvan pada penderita osteosarkoma konvensional.Metode: Penelitian menggunakan metode potong lintang. Sampel terdiri atas 33 kasus di Departemen Patologi Anatomik FKUI/RSCM tahun 2013 sampai 2018, 8 kasus (24,2%) memiliki respon histologik baik (nekrosis >90%) dan 25 kasus (75,8%) memiliki respon buruk (nekrosis <90%). Dilakukan pulasan imunohistokimia p16 pada setiap kasus biopsi yang belum diberi kemoterapi neoadjuvan, dihitung persentase sel tumor yang positif. Ekspresi p16 positif ditentukan berdasarkan inti sel tumor terpulas sedang atau kuat pada > 30% sel tumor. Hasil perhitungan dikelompokkan menjadi ekspresi positif  dan negatif kemudian dikorelasikan dengan luas nekrosis dari reseksi tumor setelah kemoterapi neoadjuvan.Hasil : Ekspresi positif ditemukan sebanyak 10 kasus (30,3%) dan ekspresi negatif 23 kasus (69,7%). Pada ekspresi positif, 6 dari 10 kasus memiliki respon kemoterapi baik dan pada ekspresi negatif, 21 dari 23 kasus memiliki respon kemoterapi buruk.  Hasil penelitian menunjukkan ekspresi imunohistokimia p16 berhubungan signifikan dengan respon histologik baik kemoterapi neoadjuvan (p=0,004) dengan prevalence ratio 6,90 (95% confidence interval, 1,672-28,480;  p = .004)Kesimpulan : Ekspresi p16 positif berhubungan dengan respon histologik baik kemoterapi neoadjuvan pada osteosarkoma konvensional.

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Background : Osteosarcoma is the most common primary malignant bone tumor in children and young adult. Its pathogenesis has been linked to alterations in several genes. The high percentage is found involving Retinoblatoma (RB) pathway.  p16 plays as a tumor suppressor in RB pathway to controll proliferation of the tumor cell. The degree of neoadjuvan chemotherapy histological necrosis response is related to prognosis of patients with osteosarcoma. Chemotherapy and p16 both synergic in inhibit the cell tumor proliferation and support apoptotic. Loss of p16 function is related to progressiveness of the tumor.Methods : The aim of this study was to investigate the relationship of p16 expression in pretreatment osteosarcoma to pathologic necrotic histological response after neoadjuvan chomotherapy. This is a cross sectional study. p16 stainning was done  and count the positive expression tumor cell in percentage. Positive was defined as strong and medium nuclear stainning in 30% or greater. The samples is catagorized into positive and negative expression then it is correlated into tumor necrotic area based on grade of Huvos.Results : Samples consist of 33 cases. Positive stainning was found in 10 cases (30,3%), 6 of 10 cases had good chemotherapy response. Negative stainning was found in 23 cases and 21 of 23 cases had poor chemotherapy response. A significant association was noted between p16 expression and histological necrotic response to neoadjuvan chemotherapy (p=0,004) with prevalence ratio 6,90 (95% confidence interval, 1,672-28,480; p = .004)Conclusion : The result showed that p16 expression associate significantly with histological necrotic response to neoadjuvan chemotherapy in conventional osteosarcoma (p=0,004)."

"[ABSTRAKOsteosarcoma adalah keganasan tulang tersering yang ditemukan pada usia muda. Terdapat beberapa faktor prognosis yang mempengaruhi, antara lain, staging, jenis kelamin dan usia. Pada osteosarcoma sel ganas menghasilkan alkaline fosphatase dan laktat dehidrogenase yang dihasilkan dari metabolisme sel kanker. Serum alkalin fosphatase (SAP) dan laktat dehidrogenase (LDH) dapat digunakan sebagai salah satu faktor prediktor prognosis.Tujuan dari studi ini adalah untuk mengetahui apakah SAP dan LDH dapat dijadikan faktor prediktor prognostik dan memperkirakan angka kesintasan pasien osteosarcoma.Penelitian ini dilakukan menggunakan metode potong-lintang untuk melihat hubungan antara usia, jenis kelamin, dan angka kesintasan 1 tahun dengan SAP dan LDH pada pasien osteosarcoma.Penelitian ini dilaksanakan di Departemen Orthopedi dan Traumatologi dan Departemen Patologi Anatomi FKUI/RSCM. Dari 303 pasien yang didiagnosis dengan osteosarcoma pada tahun 1995-2011, hanya 55 pasien yang memenuhi kriteria inklusi, terdiri atas 39 pasien laki-laki, 16 pasien perempuan dan umumnya berusia 20 tahun. Analisis dari penelitian ini menggunakan chi-square dan korelasi spearman. Dari hasil studi ini, tidak ditemukan asosiasi antara SAP dan LDH sebelum terapi dengan usia, jenis kelamin dan angka kesintasan 1 tahun.

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ABSTRACTOsteosarcoma is a bone malignancy that most commonly occurs in the young age. In this disease, there are many prognosis factor, hence, stage of the disease, gender and age.Alkaline phosphatase enzyme is produced by osteosarcoma cells and thus, increase in this malignancy. Whereas, LDH involve in cancer cell metabolism. Currently, the use of both Serum alkaline phosphatase (SAP) and lactate dehydrogenase (LDH) can be used as a prognostic factor.The research aims is to find out whether SAP and LDH, in addition to other prognostic factors, can be used to predict survivability of osteosarcoma patients. This research is a cross-sectional study and will discuss the association between age, gender, 1 year survival to the SAP and LDH in osteosarcoma patients.This study was conducted in the Department of Orthopaedic and Traumatology and Department of Pathology Anatomy FMUI/RSCM. There were 303 patients who are admitted to this hospital between the year 1995 to 2011, there were only 55 subjects included in this study that suit to the inclusion criteria. The analyses of this research was done using chi-square and spearman correlation.The sample were predominated by male (n=39), female (n=16) and the majority was the age of 20.In the results of this study, there were no association between pretreatment SAP and LDH with age, gender, and 1 year survival.;Osteosarcoma is a bone malignancy that most commonly occurs in the young age. In this disease, there are many prognosis factor, hence, stage of the disease, gender and age.Alkaline phosphatase enzyme is produced by osteosarcoma cells and thus, increase in this malignancy. Whereas, LDH involve in cancer cell metabolism. Currently, the use of both Serum alkaline phosphatase (SAP) and lactate dehydrogenase (LDH) can be used as a prognostic factor.The research aims is to find out whether SAP and LDH, in addition to other prognostic factors, can be used to predict survivability of osteosarcoma patients. This research is a cross-sectional study and will discuss the association between age, gender, 1 year survival to the SAP and LDH in osteosarcoma patients.This study was conducted in the Department of Orthopaedic and Traumatology and Department of Pathology Anatomy FMUI/RSCM. There were 303 patients who are admitted to this hospital between the year 1995 to 2011, there were only 55 subjects included in this study that suit to the inclusion criteria. The analyses of this research was done using chi-square and spearman correlation.The sample were predominated by male (n=39), female (n=16) and the majority was the age of 20.In the results of this study, there were no association between pretreatment SAP and LDH with age, gender, and 1 year survival.;Osteosarcoma is a bone malignancy that most commonly occurs in the young age. In this disease, there are many prognosis factor, hence, stage of the disease, gender and age.Alkaline phosphatase enzyme is produced by osteosarcoma cells and thus, increase in this malignancy. Whereas, LDH involve in cancer cell metabolism. Currently, the use of both Serum alkaline phosphatase (SAP) and lactate dehydrogenase (LDH) can be used as a prognostic factor.The research aims is to find out whether SAP and LDH, in addition to other prognostic factors, can be used to predict survivability of osteosarcoma patients. This research is a cross-sectional study and will discuss the association between age, gender, 1 year survival to the SAP and LDH in osteosarcoma patients.This study was conducted in the Department of Orthopaedic and Traumatology and Department of Pathology Anatomy FMUI/RSCM. There were 303 patients who are admitted to this hospital between the year 1995 to 2011, there were only 55 subjects included in this study that suit to the inclusion criteria. The analyses of this research was done using chi-square and spearman correlation.The sample were predominated by male (n=39), female (n=16) and the majority was the age of 20.In the results of this study, there were no association between pretreatment SAP and LDH with age, gender, and 1 year survival.;Osteosarcoma is a bone malignancy that most commonly occurs in the young age. In this disease, there are many prognosis factor, hence, stage of the disease, gender and age.Alkaline phosphatase enzyme is produced by osteosarcoma cells and thus, increase in this malignancy. Whereas, LDH involve in cancer cell metabolism. Currently, the use of both Serum alkaline phosphatase (SAP) and lactate dehydrogenase (LDH) can be used as a prognostic factor.The research aims is to find out whether SAP and LDH, in addition to other prognostic factors, can be used to predict survivability of osteosarcoma patients. This research is a cross-sectional study and will discuss the association between age, gender, 1 year survival to the SAP and LDH in osteosarcoma patients.This study was conducted in the Department of Orthopaedic and Traumatology and Department of Pathology Anatomy FMUI/RSCM. There were 303 patients who are admitted to this hospital between the year 1995 to 2011, there were only 55 subjects included in this study that suit to the inclusion criteria. The analyses of this research was done using chi-square and spearman correlation.The sample were predominated by male (n=39), female (n=16) and the majority was the age of 20.In the results of this study, there were no association between pretreatment SAP and LDH with age, gender, and 1 year survival.;Osteosarcoma is a bone malignancy that most commonly occurs in the young age. In this disease, there are many prognosis factor, hence, stage of the disease, gender and age.Alkaline phosphatase enzyme is produced by osteosarcoma cells and thus, increase in this malignancy. Whereas, LDH involve in cancer cell metabolism. Currently, the use of both Serum alkaline phosphatase (SAP) and lactate dehydrogenase (LDH) can be used as a prognostic factor.The research aims is to find out whether SAP and LDH, in addition to other prognostic factors, can be used to predict survivability of osteosarcoma patients. This research is a cross-sectional study and will discuss the association between age, gender, 1 year survival to the SAP and LDH in osteosarcoma patients.This study was conducted in the Department of Orthopaedic and Traumatology and Department of Pathology Anatomy FMUI/RSCM. There were 303 patients who are admitted to this hospital between the year 1995 to 2011, there were only 55 subjects included in this study that suit to the inclusion criteria. The analyses of this research was done using chi-square and spearman correlation.The sample were predominated by male (n=39), female (n=16) and the majority was the age of 20.In the results of this study, there were no association between pretreatment SAP and LDH with age, gender, and 1 year survival., Osteosarcoma is a bone malignancy that most commonly occurs in the young age. In this disease, there are many prognosis factor, hence, stage of the disease, gender and age.Alkaline phosphatase enzyme is produced by osteosarcoma cells and thus, increase in this malignancy. Whereas, LDH involve in cancer cell metabolism. Currently, the use of both Serum alkaline phosphatase (SAP) and lactate dehydrogenase (LDH) can be used as a prognostic factor.The research aims is to find out whether SAP and LDH, in addition to other prognostic factors, can be used to predict survivability of osteosarcoma patients. This research is a cross-sectional study and will discuss the association between age, gender, 1 year survival to the SAP and LDH in osteosarcoma patients.This study was conducted in the Department of Orthopaedic and Traumatology and Department of Pathology Anatomy FMUI/RSCM. There were 303 patients who are admitted to this hospital between the year 1995 to 2011, there were only 55 subjects included in this study that suit to the inclusion criteria. The analyses of this research was done using chi-square and spearman correlation.The sample were predominated by male (n=39), female (n=16) and the majority was the age of 20.In the results of this study, there were no association between pretreatment SAP and LDH with age, gender, and 1 year survival.]"

"Osteosarkoma merupakan salah satu tumor ganas tulang primer yang paling sering ditemukan. Kemoterapi neoadjuvan merupakan salah satu alternatif terapi yang dapat meningkatan luaran dan kesintasan pasien. Studi ini dilakukan untuk menilai luaran klinis, histopatologis, dan radiologis pada pasien osteosarkoma yang menjalani kemoterapi neoadjuvan beserta faktor-faktor yang mempengaruhinya. Penelitian ini merupakan suatu studi potong lintang yang menggunakan data pasien dengan diagnosis osteosarkoma yang telah menjalani kemoterapi neoadjuvan di RSUPN dr. Cipto Mangunkusumo pada bulan Januari 2017 hinggal Juli 2019. Terdapat 58 subjek dalam penelitian ini. Sebanyak 38 (65,5%) subjek berjenis kelamin laki-laki dengan median usia seluruh subjek 16 (5 hingga 67) tahun. Sebanyak 10 (17,2%) subjek merupakan good responder kemoterapi neoadjuvan. Dari hasil analisis data didaapatkan perbedaan bermakna kadar laboratoris ALP (p=0,002), LED (p=0,002), dan NLR (p<0,001) sebelum dan sesudah kemoterapi. Derajat nekrosis berkorelasi negatif dengan perubahan nilai LDH sebelum dan sesudah kemoterapi (r=-0,354; p=0,006), namun tidak didapatkan hubungan yang bermakna dengan parameter lain seperti perubahan kadar ALP (r=-0,186; p=0,162) dan LED (r=-0,104;  p=0,437). Secara radiologis didapatkan peningkatan nilai ADC yang bermakna (p=0,028) setelah pemberian kemoterapi neoadjuvan, namun perubahannya tidak berhubungan dengan persentase nekrosis tumor (r=-0,300; p=0,433). Pada pasien osteosarkoma yang menjalani kemoterapi neoadjuvan di RSUPN dr. Cipto Mangunkusumo bulan Januari 2017 hingga Juli 2019, didapatkan perbedaan bermakna kadar penanda inflamasi dan parameter radiologis berupa ADC sebelum dan sesudah pemberian kemoterapi adjuvan.

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Osteosarcoma is one of the most prevalent primary tumors of the bone. Neoadjuvant chemotherapy has been administered in osteosarcoma cases to increase the survival rate and improve outcomes. This study is conducted to investigate the clinical, histopathological, and radiological outcome of osteosarcoma patients who underwent neoadjuvant chemotherapy, as well as the various factors that contributes to said outcome. This study is a cross-sectional study that involves the data of patients diagnosed with osteosarcoma who underwent neoadjuvant chemotherapy in RSUPN dr. Cipto Mangunkusumo from January 2017 up to July2019. A total of 58 subjects was admitted in this study. Thirty-eight (65,5%) subjects are male, with the median age of all subjects being 16 years old (5 to 67). We found that 10 subjects (17,2%) is a good responder to neoadjuvant chemotherapy. From the data analysis, significant differences were observed in ALP (p=0,002), ESR (p=0,002) and NLR (p=<0,001) levels before and after neoadjuvant chemotherapy. The degree of necrosis is inversely correlated with the change in LDH level before and after neoadjuvant chemotherapy (r=-0,354; p=0,006), however, no significant correlation was observed in ALP (r=-0,186; p=0,162) dan ESR (r=-0,104;  p=0,437). Radiologically, there is an increase in ADC value (p=0,028) after neoadjuvant chemotherapy. However, this is not correlated with the degree of necrosis (r=-0,300; p=0,433) observed pathologically. There is a significant difference in inflammatory markers and radiological parameter (ADC) pre and post neoadjuvant chemotherapy among osteosarcoma patients in RSUPN dr. Cipto Mangunkusumo from January 2017 up to July 2019."

"Pendahuluan: Pendekatan muskuloskeletal dalam bidang onkologi, dengan fokus khusus pada bedah ortopedi, telah mengalami kemajuan yang signifikan, menghasilkan strategi bedah baru dalam pengelolaan osteosarcoma. Keefektifan limb-saving surgery telah meningkat, seiring dengan peningkatan pada pencapaian hasil fungsional optimal, penutupan luka, dan hasil kosmetik, semuanya dengan mematuhi prinsip onkologi. Kami menekankan pentingnya mempertimbangkan berbagai faktor untuk menentukan pengobatan yang paling sesuai untuk osteosarkoma. Kami juga menggarisbawahi penggunaan alat penilaian seperti skala penilaian Musculoskeletal Tumor Society (MSTS) untuk evaluasi pasien dengan sarkoma ekstremitas.Metode: Penelitian ini menggunakan pendekatan analitik observasional dengan desain cross-sectional untuk menganalisis pasien terdiagnosis osteosarkoma yang menjalani prosedur megaprostesis di rumah sakit tertentu. Penelitian ini menggunakan metode pengambilan sampel total dan menetapkan kriteria inklusi dan eksklusi bagi para peserta, dengan fokus pada pasien yang menjalani Limb Salvage Surgery menggunakan teknik megaprosthesis dan mengecualikan mereka yang memiliki masalah infeksi atau informasi klinis yang tidak memadai.Hasil: Pada penelitian ini, 32 pasien osteosarkoma menjalani operasi penyelamatan anggota tubuh dengan megaprostesis. Rata-rata usia pasien adalah 22,84 tahun dengan mayoritas berjenis kelamin laki-laki (59,4%). Lokasi tersering adalah femur distal (50%) diikuti tibia proksimal (40,6%). Tingkat rekurensi, metastasis, komplikasi dan survival rate masing-masing adalah 21,9%;43,8%;6,3%; dan 78,1%. Median Skor MSTS adalah 28. Berdasarkan hasil penelitian, terdapat hubungan kuat antara LDH dengan skor MSTS, namun hubungan ini tidak signifikan secara statistik (p>0.05). Berdasarkan hasil penelitian, terdapat hubungan antara usia dengan kejadian metastasis tumor, dimana hubungan ini signifikan secara statistik (p<0.05). Perbedaan rerata pada usia terhadap survival signifikan secara statistik (p<0,05). Terdapat hubungan antara durasi gejala dengan luaran survival tumor, dimana hubungan ini signifikan secara statistik (p<0.05).Diskusi: Penelitian ini berfokus pada pemanfaatan Megaprostesis, yang masih relatif jarang dilakukan di Indonesia karena kendala biaya dan teknis. Penelitian ini mencatat karakteristik pasien, termasuk usia, jenis kelamin, lokasi tumor, ALP, dan tingkat LDH di antara pasien yang menderita osteosarkoma. Insiden yang lebih tinggi pada pria mungkin disebabkan oleh faktor hormonal, genetika, dan peningkatan risiko osteoporosis pada pria. Osteosarcoma biasanya muncul di dekat metafisis tulang panjang atau lempeng pertumbuhan, terutama di tibia proksimal dan femur distal. Peran LDH, yang mempengaruhi berbagai proses biologis seperti proliferasi sel, kelangsungan hidup, apoptosis, angiogenesis, metabolisme zat besi dan glukosa, juga dieksplorasi dalam kaitannya dengan osteosarkoma. Namun, terbatasnya ukuran sampel penelitian ini dapat menghambat kemampuan penelitian ini untuk secara akurat mewakili tren populasi yang lebih luas.Kesimpulan: Terdapat hubungan yang bermakna antara usia dan angka kejadian metastasis osteosarcoma. Selain itu, ditemukan perbedaan rerata pada usia terhadap survival signifikan secara statistik.

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Introduction: The field of musculoskeletal oncology, with a specific focus on orthopedic surgery, has witnessed notable progress, resulting in the development of novel surgical strategies for the management of osteosarcoma. The efficacy of limb-saving surgery has increased, as it now emphasizes the attainment of optimal functional outcomes, wound covering, and cosmetic results, all while adhering to oncologic principles. We emphasizes the significance of considering multiple factors in order to determine the most suitable treatment for osteosarcoma. We also underscores the utilization of assessment tools such as the Musculoskeletal Tumor Society rating scale (MSTS) for the evaluation of patients with extremity sarcoma.

Method: The study uses an observational analytical approach with a cross-sectional design to analyze patients diagnosed with osteosarcoma who underwent megaprosthesis procedure at specific hospitals. The study has employed total sampling method and defined inclusion and exclusion criteria for the participants, focusing on patients who had Limb Salvage Surgery using the megaprosthesis technique and excluding those with infection problems or insufficient clinical information.

Results: Thirty-two patients with osteosarcoma had limb-saving surgery using a megaprosthesis in this study. Patients' average age was 22.84 years, and 59.4% of them were men. The proximal tibia (40.6%) and distal femur (50%) were the most often reported locations. The rates of complications, recurrence, metastasis, and survival were, in order, 78.1%, 6.3%, 43.8%, and 21.9%. 28 is the median MSTS score. The study's findings indicate a substantial correlation between LDH and MSTS score, however this correlation is not statistically significant (p>0.05). Age and the incidence of tumor metastasis are related, according to the research findings, and this association is statistically significant (p<0.05). A statistically significant difference in survival was seen between the mean ages (p<0.05). There is a relationship between the duration of symptoms and tumor survival outcomes, where this relationship is statistically significant (p<0.05).

Dicussion: This study focused on the utilization of Megaprosthesis, which remains relatively rare in Indonesia due to cost and technical challenges. It examined patient characteristics, including age, gender, tumor location, ALP, and LDH levels among those with osteosarcoma. The higher incidence in males might be attributed to hormonal factors, genetics, and an elevated risk of osteoporosis in men. Osteosarcoma typically arises near long bone metaphysis or growth plates, notably in the proximal tibia and distal femur. The role of LDH, which influences various biological processes such as cell proliferation, survival, apoptosis, angiogenesis, iron and glucose metabolism, was also explored. However, the study's limited sample size may hinder its ability to accurately represent broader population trends.

Conclusion: Age is a key factor in the incidence of metastasis from osteosarcoma. Furthermore, a statistically significant variation in the mean age of survivors was discovered."

"[ABSTRAKPendahuluan Osteosarkoma adalah tumor ganas tulang paling sering ditemukan di RS Cipto Mangunkusumo (RSCM). Penatalaksanaan osteosarkoma dengan limb-salvage surgery (LSS) makin berkembang disamping tindakan amputasi. Penelitian ini bertujuan untuk mengetahui perbandingan luaran hasil LSS dan amputasi pada pasien osteosarkoma di RSCM.Metode Studi ini menggunakan desain kohort retrospektif pada pasien osteosarkoma periode tahun 1995-2014 di RSCM. Dilakukan evaluasi angka kesintasan, rekurensi lokal, metastasis, komplikasi, skor fungsional menurut Musculoskeletal Tumor Society Scoring system (MSTS) pada pasien yang dilakukan LSS dan amputasi. Metode Kaplan-Meier digunakan untuk mendeskripsikan kesintasan, sintasan bebas rekurensi lokal antara LSS dan amputasi. Hubungan karakteristik pasien dianalisis dengan uji log rank. Uji Kai kuadrat, Eksak Fischer dan Mann-Whitney U digunakan untuk menganalisis hubungan antara skor MSTS dan karakteristik pasien, angka rekurensi, metastasis serta komplikasi. Untuk melihat pengaruh katakteristik terhadap sintasan dilakukan analisis regresi Cox dan uji Wald serta analisis multivariat backward stepwise.Temuan Penelitian dan Diskusi Kesintasan 5 tahun pasien osteosarkoma 14,6%. Kesintasan 5 tahun LSS 34,8%, kesintasan 5 tahun amputasi 15,9%. Kesintasan bebas rekurensi lokal 5 tahun untuk LSS 96,2% dan untuk amputasi 86,5%. Kesintasan dipengaruhi metastasis, tipe operasi dan ukuran tumor. Metastasis merupakan faktor paling berpengaruh berdasarkan analisis multivariat. Metastasis terbanyak ditemukan di paru. Gejala awal dan staging Enneking mempengaruhi metastasis (p=0,02 dan 0,007). Infeksi adalah komplikasi tersering. Tipe biopsi FNAB memberi komplikasi yang paling sedikit. LSS memberi skor fungsional yang lebih tinggi (83,3%) daripada amputasi (61,7%). Pasien dengan rekurensi lokal cenderung mempunyai skor fungsional buruk (p=0,023).Kesimpulan Kesintasan paling tinggi pada pasien osteosarkoma RSCM yang dilakukan LSS. Luaran fungsional dengan skor MSTS baik (83,3%) didapatkan pada pasien yang dilakukan LSS dan bebas rekurensi lokal. Skor MSTS buruk dijumpai pada pasien amputasi dengan rekurensi lokal, komplikasi dan metastasis.

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ABSTRACTIntroduction Osteosarcoma is the most common malignant bone tumor seen in Cipto Mangunkusumo Hospital (CMH). Treatment for osteosarcoma includes limb-salvage surgery (LSS), and it is increasingly more frequently performed compared to amputation. This study aims to analyze the outcome of LSS compared to amputation for osteosarcoma patients in CMH.Methods This is a retrospective cohort study to review osteosarcoma patients during 1995-2014 period in CMH. Analysis was performed on survival rate, local recurrence, metastasis, complication, and functional score according to Musculoskeletal Tumor Scoring System (MSTS) for patients underwent LSS or amputation. Kaplan-Meier method was used to determine survival rate, and disease-free survival rate between LSS and amputation. Log-rank analysis was used to determine relationship between patients characteristic. Chi-Square, Exact-Fischer, and Mann-Whitney U tests were used to analyze the correlation between MSTS score and patient characteristics, rate of recurrence, metastasis, and complication. To determine the influence of patient characteristics to survival, Cox regression analysis, Wald Test and backward stepwise multivariate analysis were performed.Results and discussion 5-year survival rate osteosarcoma patients was 14.6%, 5-year survival rate for LSS was 34.8% compared to 15.9% for amputation. Disease-free survival for LSS was 96,2%, while amputation was 86,5%. Survival were influenced by metastasis, type of surgical intervention, and tumor size. According to multivariate analysis, survival was most influenced by metastasis. Metastasis were found predominantly in lungs. Initial symptoms and Enneking stage were correlated to metastasis (p=0.02 and 0.007, respectively). Infection was the most common complication. FNAB gave the least complication compared to other types of biopsy. LSS gave the highest functional score (83.3%) compared to amputation (61.7%). Patients with local recurrence tend to have poor functional score (p=0.023).Conclusion The highest survival rate for osteosarcoma patients in CMH was found on patients who underwent LSS. Good functional outcome according to MSTS score (83.3%) were found on patients who underwent LSS and free of local recurrence. Poor MSTS score were seen on patients undergone amputation, patients who had had local recurrence, complication and metastasis, Introduction Osteosarcoma is the most common malignant bone tumor seen in Cipto Mangunkusumo Hospital (CMH). Treatment for osteosarcoma includes limb-salvage surgery (LSS), and it is increasingly more frequently performed compared to amputation. This study aims to analyze the outcome of LSS compared to amputation for osteosarcoma patients in CMH.Methods This is a retrospective cohort study to review osteosarcoma patients during 1995-2014 period in CMH. Analysis was performed on survival rate, local recurrence, metastasis, complication, and functional score according to Musculoskeletal Tumor Scoring System (MSTS) for patients underwent LSS or amputation. Kaplan-Meier method was used to determine survival rate, and disease-free survival rate between LSS and amputation. Log-rank analysis was used to determine relationship between patients characteristic. Chi-Square, Exact-Fischer, and Mann-Whitney U tests were used to analyze the correlation between MSTS score and patient characteristics, rate of recurrence, metastasis, and complication. To determine the influence of patient characteristics to survival, Cox regression analysis, Wald Test and backward stepwise multivariate analysis were performed.Results and discussion 5-year survival rate osteosarcoma patients was 14.6%, 5-year survival rate for LSS was 34.8% compared to 15.9% for amputation. Disease-free survival for LSS was 96,2%, while amputation was 86,5%. Survival were influenced by metastasis, type of surgical intervention, and tumor size. According to multivariate analysis, survival was most influenced by metastasis. Metastasis were found predominantly in lungs. Initial symptoms and Enneking stage were correlated to metastasis (p=0.02 and 0.007, respectively). Infection was the most common complication. FNAB gave the least complication compared to other types of biopsy. LSS gave the highest functional score (83.3%) compared to amputation (61.7%). Patients with local recurrence tend to have poor functional score (p=0.023).Conclusion The highest survival rate for osteosarcoma patients in CMH was found on patients who underwent LSS. Good functional outcome according to MSTS score (83.3%) were found on patients who underwent LSS and free of local recurrence. Poor MSTS score were seen on patients undergone amputation, patients who had had local recurrence, complication and metastasis]"

"Latar Belakang: Osteosarkoma merupakan keganasan tulang primer dengan beragamsubtipe dan memerlukan pendekatan multidisiplin dalam diagnosis dan tatalaksananya.Hingga saat ini belum ada alat diagnostik yang terbukti dapat mendekaticlinicopathological conference (CPC) sebagai standar baku emas. Keterbatasan fasilitas,biaya, dan antrian pemeriksaan yang panjang sering kali menunda diagnosisosteosarkoma. Penelitian ini bertujuan untuk membuat model sistem skoring berdasarkantemuan klinis, laboratorium, radiografi konvensional, dan histopatologis untukmendiagnosis osteosarkoma secara cepat dan tepat.Metode: Penelitian ini dilakukan dalam dua tahap. Tahap pertama bertujuan untukmemformulasikan sistem skoring untuk mendiagnosis osteosarkoma menggunakan datasekunder secara retrospektif di RS. Dr. Cipto Mangunkusumo tahun 2016 hingga 2020.Studi ini melibatkan semua pasien dengan suspek keganasan tulang primer dandidiagnosis akhir berdasarkan CPC. Uji analisis dilakukan secara univariat, bivariat, danmultivariat menggunakan regresi logistik backward stepwise dilanjutkan dengan ujikalibrasi dan diskriminasi menggunakan uji Hosmer-Lemeshow dan kurva receivingoperator characteristic (ROC), serta menentukan titik potong pada model. Tahap keduaditujukan untuk mengevaluasi model sistem skoring yang diformulasi pada tahap pertamasecara prospektif menggunakan data primer sejak September 2022 hingga Desember2022 di poliklinik Orthopaedi dan Traumatologi RS. Dr. Cipto Mangunkusumo.Hasil: Penelitian tahap pertama melibatkan 120 subjek dan menghasilkan dua modelsistem skoring, yaitu dengan mempertimbangkan riwayat pijat (model 1) dan tanpamempertimbangkan riwayat pijat (model 2). Dari hasil analisis multivariat, didapatkansembilan variabel yang dimasukan dalam model sistem skoring yaitu usia, indeks massatubuh (IMT), onset, riwayat pijat, lokasi tumor, kadar alkaline phosphatase (ALP), laktatdehidrogenase (LDH), letak lesi berdasarkan radiografi konvensional, serta gambaranhistopatologis berdasarkan fine needle aspiration biopsy (FNAB). Uji kalibrasi model 1dan 2 menunjukan kalibrasi yang baik (p=0,498 dan p=0,917). Uji diskriminasi padamodel sistem skoring menunjukan nilai area under the curve (AUC) 0,818 dengan nilaip<0,001 pada model 1 dan 2. Titik potong pada model 1 dan 2 berturut-turut adalah 19dan 11 poin. Penelitian tahap kedua melibatkan 34 subjek dan menunjukan sensitivitas,spesifisitas, dan akurasi model 1 dan 2 berturut turut sebesar 81,25% dan 87,5%, 100%dan 100%, dan 91,1% dan 94,1%.Kesimpulan: Didapatkan dua model sistem skoring yang mampu mendiagnosisosteosarkoma dengan cepat dan tepat dibandingkan dengan CPC. Lokasi tumor di lututdan gambaran sel pleiomorfik dengan atau tanpa matriks osteoid ganas merupakan faktoryang paling berpengaruh terhadap diagnosis osteosarkoma.

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Introduction : Osteosarcoma, being one of the most prevalent among the primary bone

malignancies, consists of multiple subtypes and requires a multidisciplinary approach for

proper diagnosis and treatment. Lately, there have not been a diagnostic tool that is able

to rival the accuracy of clinicopathological conference (CPC) as a gold standard in

determining the diagnosis and treatment of osteosarcoma. Limitations in budgeting, as

well as the time taken for each patient to undergo supporting examinations often leads to

a delayed diagnosis. This research aims to create a scoring system that is based on clinical

symptoms, laboratory results, conventional radiology, as well as histopathological results

to establish a quick and accurate diagnosis for osteosarcoma.

Method: This research was conducted in two stages; the first stage aims to formulate the

scoring system for diagnosing osteosarcoma by using a retrospective, secondary data

obtained from Dr. Cipto Mangunkusumo Hospital from 2016 up to 2020. This study

involved all patients with suspected bone malignancies that was eventually diagnosed

with osteosarcoma by means of CPC. The analysis was done with univariate, bivariate,

and multivariate analysis using backward stepwise logistic regression method followed

by calibration and discrimination test using Hosmer-Lemeshow test and receiving

operator characteristic (ROC) curve analysis, and determined the cut-off point in the

scoring system model. The second stage was aimed to prospectively evaluate the

previously formulated scoring system model in the first stage using primary data from

September 2022 to December 2022 at Orthopaedic and Traumatology outpatient clinic

Dr. Cipto Mangunkusumo Hospital.

Result: The first stage of the study involved 120 subjects and resulted two models of

scoring system, namely by considering massage history (model 1) and without

considering massage history (model 2). From multivariate analysis, nine variables were

included in the scoring system model, including age, body mass index (BMI), onset,

massage history, tumor location, alkaline phosphatase (ALP) levels, lactate

dehydrogenase (LDH), location of the lesion based on conventional radiography, and

histopathological finding based on fine needle aspiration biopsy (FNAB). Calibration

tests for models 1 and 2 showed good calibration (p=0.498 and p=0.917). The

discrimination test on the scoring system model showed an area under the curve (AUC)

value of 0.818 with a p-value <0.001 in both models 1 and 2. The cut-off points in model

1 and 2 were 19 and 11, respectively. The second stage of the study involved 34 subjects

with the sensitivity, specificity, and accuracy of models 1 and 2 showing 81.25% and

87.5%, 100% and 100%, and 91.1% and 94.1%, respectively.

Conclusion: This study has proposed two models of scoring systems that can be used

for a more rapid and accurate diagnosis of osteosarcoma when compared to CPC; the

location of the tumor mass in the knee joint and the appearance of pleomorphic cells, with

or without the appearance of malignant osteoids, both being significant factors in

diagnosing osteosarcoma"