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Allograft-prosthetic composite in the proximal tibia after bone tumor resection
Davide Donati1, Marco Colangeli, Simone Colangeli
1Musculoskeletal Oncology Department, Rizzoli Orthopaedic Institute, Via Pupilli 1, 40126 Bologna, Italy. davide.donati@ior.it
Clinical Orthopaedics and Related Research
|January 16, 2008
Summary
Allograft-prosthesis composites offer good functional outcomes for proximal tibia reconstruction but have high infection rates. This technique is not recommended for patients receiving chemotherapy or those with prior reconstructive failures.
Area of Science:
- Orthopedic surgery
- Musculoskeletal oncology
- Reconstructive surgery
Background:
- Allograft-prosthesis composites combine mechanical stability with biologic reconstruction for proximal tibia defects.
- This technique aims to improve functional outcomes in patients requiring complex limb salvage procedures.
Purpose of the Study:
- To evaluate the complications and functional outcomes of allograft-prosthesis composite reconstruction in the proximal tibia.
- To identify patient factors and tumor characteristics influencing the success of this reconstructive method.
Main Methods:
- Retrospective review of 62 patients who underwent proximal tibia reconstruction using allograft-prosthesis composites.
- Assessment of Musculoskeletal Tumor Society (MSTS) scores and survival rates.
- Analysis of complication rates, particularly infection, and their potential contributing factors.
Main Results:
- Satisfactory MSTS scores were achieved in 90.4% of patients.
- A 5-year survival rate of 73.4% was observed, comparable to modular prosthesis reconstruction.
- A significant complication was a high infection rate of 24.2%.
Conclusions:
- Allograft-prosthesis composites provide satisfactory functional outcomes and comparable survival rates for proximal tibia reconstruction.
- High infection rates are a major concern, and medial gastrocnemius rotation did not mitigate this risk.
- This technique is not advised for patients undergoing postoperative chemotherapy or those with prior reconstructive failures; ideal candidates are young patients with primary, low-grade tumors.
