Related Experiment Video
Updated: Dec 16, 2025
10:36
Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach
Published on: May 23, 2025
644
An ulnar parametacarpal perforator flap for volar digital soft tissue reconstruction
Satoshi Usami1, Kohei Inami1, Yuichi Hirase2
1Department of Hand Surgery, Takatsuki Orthopaedic Hospital, Tokyo, Japan.
The Journal of Hand Surgery, European Volume
|July 7, 2020
Summary
Ulnar parametacarpal perforator flaps provide sensate skin for digital pulp reconstruction. This study shows successful outcomes in 25 patients, highlighting their effectiveness for finger injuries.
Area of Science:
- Plastic Surgery
- Reconstructive Surgery
- Hand Surgery
Background:
- Digital pulp defects pose reconstructive challenges.
- Sensate skin reconstruction is crucial for hand function.
Purpose of the Study:
- To evaluate the outcomes of using perforator-based ulnar parametacarpal flaps for digital pulp defects.
- To assess the viability and sensory recovery of these flaps.
Main Methods:
- A total of 25 patients underwent reconstruction using ulnar parametacarpal perforator flaps.
- Flaps were used as free or reverse pedicled transfers.
- The dorsal sensory branch of the ulnar nerve was coapted to the digital nerve.
Main Results:
- All 25 flaps (100%) survived completely.
- Mean static and moving two-point discrimination were 7 mm and 5 mm, respectively.
- Acceptable sensory reinnervation was noted at the donor sites.
Conclusions:
- Ulnar parametacarpal perforator flaps provide a reliable source of sensate, thick, and glabrous skin for finger pulp repair.
- These flaps can be harvested within a single operative field, simplifying the procedure.
