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[Chemotherapy of osteosarcoma].
K Winkler1, P Bieling, S Bielack
1Univ.-Krankenhaus-Kinderklinik, Abtlg. f. pädiatrische Hämatologie und Onkologie, Hamburg.
Zeitschrift Fur Orthopadie Und Ihre Grenzgebiete
|July 1, 1992
Summary
Intensified chemotherapy significantly improved metastasis-free survival for osteosarcoma patients. While conservative surgery is feasible, it increases local failure rates, highlighting the need for specialized care.
Area of Science:
- Oncology
- Surgical Oncology
- Pediatric Oncology
Context:
- Osteosarcoma treatment has evolved with advancements in chemotherapy and surgical techniques.
- Comparing outcomes between historical (COSS-77) and modern (COSS-86) treatment protocols is crucial.
- Understanding the balance between oncologic control and functional preservation is key.
Purpose:
- To evaluate the impact of intensified adjuvant chemotherapy on survival outcomes in osteosarcoma.
- To assess the safety and efficacy of neoadjuvant chemotherapy in facilitating conservative surgical approaches.
- To analyze local failure rates associated with different surgical modalities and their prognostic implications.
Summary:
- Intensified adjuvant chemotherapy regimens improved 4-year metastasis-free survival from 50% to approximately 80%.
- Neoadjuvant chemotherapy demonstrated a favorable safety profile and enabled more conservative surgical options.
- Local failure rates were significantly higher after resection with limb-sparing surgery (10.5%) compared to demolitive procedures like rotationplasty (2.5%), with local failures carrying a poor prognosis.
Impact:
- Improved survival rates for osteosarcoma patients through intensified chemotherapy.
- Enhanced limb function preservation via neoadjuvant chemotherapy-induced tumor downstaging.
- Highlights the critical need for specialized multidisciplinary centers for optimal osteosarcoma management due to complex treatment and poor prognosis of local failures.