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Custom mega-prosthetic replacement for proximal humeral tumours
N Mayilvahanan1, M Paraskumar, A Sivaseelam
1Department of Orthopaedics & Traumatology, Madras Medical College & Research Institute, Government General Hospital, Chennai 600 003, India. drmayil@bonetumour.org
International Orthopaedics
|March 28, 2006
Summary
Custom mega-prostheses effectively treated aggressive proximal humerus tumors in 57 patients. Most patients remained disease-free, demonstrating satisfactory functional outcomes with manageable complications.
Area of Science:
- Orthopedic Surgery
- Oncology
- Biomedical Engineering
Background:
- Aggressive tumors of the proximal humerus present significant treatment challenges.
- Custom mega-prostheses offer a reconstructive option for extensive bone tumor resections.
Purpose of the Study:
- To evaluate the efficacy and outcomes of custom mega-prostheses in patients with proximal humerus tumors.
- To assess complication rates and functional results following this reconstructive approach.
Main Methods:
- Retrospective analysis of 57 patients undergoing reconstruction with custom mega-prostheses for proximal humerus tumors.
- Tumor types included osteosarcoma, giant cell tumor, and chondrosarcoma.
- Surgical margins and oncological outcomes were assessed, along with functional results and complications.
Main Results:
- Wide resection margins were achieved in primary malignant tumors.
- At an average follow-up of 5.5 years, 43 patients were disease-free, with 6 deaths.
- Common complications included proximal subluxation and aseptic loosening; 78% had satisfactory functional outcomes.
Conclusions:
- Custom mega-prostheses provide a viable solution for managing aggressive proximal humerus tumors.
- This approach can achieve good oncological control and satisfactory function, despite potential complications.
- Further research into optimizing prosthesis design and surgical techniques may mitigate complications.
