Osteosarcoma in patients older than 65 years

Area of Science:

• Orthopedic Oncology
• Geriatric Oncology
• Skeletal Tumors

Background:

• Osteosarcoma is a rare primary bone cancer predominantly affecting children and young adults.
• Older adults (over 65) are often excluded from clinical trials, leading to limited data on their specific outcomes.
• Understanding the unique clinical features and prognostic factors in elderly osteosarcoma patients is crucial for tailored treatment.

Purpose of the Study:

• To investigate the clinical characteristics and prognostic factors of osteosarcoma in patients aged 65 years and older.
• To compare the outcomes of elderly osteosarcoma patients with those of younger patient cohorts.
• To identify specific challenges and differences in the management of osteosarcoma in the geriatric population.

Main Methods:

• Retrospective review of high-grade osteosarcoma patients aged over 65 treated at a single institution.
• Data collection included patient demographics, disease characteristics (stage, location, histology), treatment modalities, and survival outcomes.
• Multivariate analysis was performed to identify significant prognostic factors.

Main Results:

• Forty-three elderly patients (median age 69) were analyzed; 14 presented with metastatic disease.
• The median overall survival was 19 months, with a 5-year survival rate of 22% for the entire group.
• Significant prognostic factors included disease stage, tumor volume, and surgical intervention; Paget's disease and chemotherapy were not significant predictors.

Conclusions:

• Patients over 65 with osteosarcoma exhibit a worse prognosis compared to younger counterparts.
• This older demographic presents with longer symptom-to-diagnosis intervals, higher rates of metastatic disease, and reduced utilization of limb-sparing surgery and chemotherapy.
• Elderly osteosarcoma patients are underrepresented in clinical trials, highlighting a need for age-specific research and treatment protocols.