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Updated: Feb 19, 2026

Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
Published on: May 23, 2025
Interdisciplinary reconstructions of the forearm and hand
Luca Kümmerl1, Theresa Promny1, Elisabeth Eschenbacher1
1Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nuernberg, Erlangen, Germany.
Interdisciplinary strategies and plastic surgeon expertise are key for complex forearm and hand defect reconstruction. This approach optimizes outcomes in upper extremity salvage, minimizing complications.
Area of Science:
- Plastic Surgery
- Orthopedic Surgery
- Microsurgery
Background:
- Complex forearm and hand defects require sophisticated reconstructive approaches.
- Interdisciplinary collaboration is essential for managing these challenging cases.
Purpose of the Study:
- To examine clinical applications of interdisciplinary reconstructive strategies for complex forearm and hand defects.
- To clarify how collaborative planning and technique adaptation influence upper extremity salvage outcomes.
Main Methods:
- Retrospective review of 79 patients undergoing upper extremity reconstruction (2020-2024).
- Inclusion of composite defects of hand or forearm treated with local, regional, or free flaps.
- Descriptive analysis of demographics, etiology, defect location, reconstructive technique, collaboration, and complications.
Main Results:
- Trauma was the primary cause (68%) of defects, often affecting long fingers and thumbs.
- Free flaps were used for large/composite defects; local/regional flaps for smaller soft tissue defects.
- Overall complication rate was 12.6%, with no flap failures or limb loss.
Conclusions:
- Individualized, anatomy-driven planning and interdisciplinary cooperation enhance upper limb reconstruction.
- Plastic surgeons are crucial in adapting techniques for favorable functional and aesthetic results.
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