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Primary osteosarcoma in adults older than 40 years
1Mayo Clinic, Rochester, MN 55905, USA.
Clinical Orthopaedics and Related Research
|April 16, 2002
Summary
Adults with primary osteosarcoma face poor outcomes. Key prognostic factors for survival include metastatic disease, pathologic fractures, and surgical margins. Aggressive treatment is crucial for improving survival rates.
Area of Science:
- Orthopedic Oncology
- Skeletal Tumors
- Adult Oncology
Background:
- Primary osteosarcoma is rare in adults, with limited data on prognostic factors.
- Adult osteosarcoma often presents with advanced disease and poorer outcomes compared to pediatric cases.
Purpose of the Study:
- To identify prognostic factors influencing survival in adult patients with primary osteosarcoma.
- To evaluate the impact of treatment modalities and disease characteristics on clinical outcomes.
Main Methods:
- Retrospective review of 47 adult patients (>40 years) with primary osteosarcoma treated between 1977 and 1998.
- Analysis of patient demographics, tumor characteristics, treatment received, and survival data.
Main Results:
- Poor 5-year disease-free survival (32.54%) and overall survival (41.64%) rates were observed.
- Metastatic disease at presentation or later, pathologic fracture, large tumor volume, and inadequate surgical margins were associated with significantly lower survival.
- Higher rates of axial skeleton involvement and recurrences were noted in this adult cohort.
Conclusions:
- Adult primary osteosarcoma carries a poor prognosis, necessitating improved therapeutic strategies.
- Early detection and aggressive multimodal treatment regimens are essential for enhancing survival outcomes in adult osteosarcoma patients.