Ewing's sarcoma of bone: oncologic and functional results

Area of Science:

• Orthopedic Oncology
• Surgical Oncology
• Pediatric Oncology

Background:

• Ewing's sarcoma of bone is a rare bone cancer.
• Treatment outcomes for Ewing's sarcoma have varied historically.
• Accurate diagnosis is crucial, with osteomyelitis misdiagnosed in 24% of cases.

Purpose of the Study:

• To evaluate treatment outcomes for Ewing's sarcoma of bone.
• To assess the effectiveness of different surgical approaches.
• To analyze disease-free survival rates based on treatment modality.

Main Methods:

• Retrospective analysis of 29 patients with Ewing's sarcoma of bone treated between 1975 and 1990.
• Review of treatment modalities including chemotherapy, surgery (intralesional excision, wide excision, radical disarticulation), and radiotherapy.
• Assessment of disease-free survival and functional outcomes.

Main Results:

• Wide excision resulted in no evidence of disease in all 12 patients treated with this method.
• Intralesional excision and radiotherapy-only treatments had high mortality rates.
• Disease-free survival was 66% at 1.5 years and 55% at 5 years.
• Excellent functional results were achieved with wide excision and reconstruction for tumors in expendable bones.

Conclusions:

• Wide excision is a highly effective surgical treatment for Ewing's sarcoma of bone.
• Aggressive surgical approaches like radical disarticulation were associated with poor survival.
• Multimodal treatment strategies, including chemotherapy and appropriate surgery, are critical for improving outcomes.