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Updated: Aug 14, 2026
10:36
Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
Published on: May 23, 2025
Summary
Thumb avulsion injuries from rotating machinery are a distinct entity. Successful replantation is possible in all cases, with vein grafts and median nerve assessment crucial for optimal outcomes.
Area of Science:
- Orthopedic Surgery
- Trauma Surgery
- Microsurgery
Background:
- Thumb avulsion injuries, often caused by industrial accidents involving rotating machinery, present unique challenges in surgical management.
- These injuries typically involve complex damage to tendons, nerves, and vasculature, necessitating specialized reconstructive techniques.
Purpose of the Study:
- To define the characteristics of thumb avulsion injuries.
- To evaluate the outcomes of replantation in these cases.
- To establish optimal surgical strategies for thumb avulsion injuries.
Main Methods:
- Review of seven cases of thumb avulsion injuries.
- Surgical assessment including identification of tendon, nerve (median nerve within the carpal tunnel), and arterial damage.
- Replantation procedures utilizing vein grafts for arterial reconstruction.
Main Results:
- All seven cases of thumb avulsion were successfully replanted.
- Common findings included extrinsic tendon avulsion, median nerve avulsion, arterial damage, and soft tissue degloving.
- Vein grafts were essential for successful arterial anastomosis.
Conclusions:
- Thumb avulsion is a well-defined traumatic entity.
- Routine use of vein grafts and careful median nerve assessment are recommended for successful thumb replantation.
- Replantation should be attempted in all available thumb amputation cases.
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