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Free flaps based on the anterior interosseous artery
1Department of Orthopaedic Surgery, Niigata University School of Medicine, Japan.
Plastic and Reconstructive Surgery
|April 1, 1996
Summary
Anterior interosseous artery free flaps offer versatile options for reconstructing dorsal wrist defects. Anatomical dissections revealed four flap types, with successful applications in wrist coverage and thumb reconstruction.
Area of Science:
- Orthopedics
- Plastic Surgery
- Anatomy
Background:
- Free flaps are crucial for reconstructive surgery.
- The anterior interosseous artery's vascular supply to the forearm and wrist is well-documented.
- Understanding its anatomical variations is key for flap design.
Observation:
- Fifteen anatomical dissections defined the anterior interosseous artery and its branches.
- A dorsal branch was identified, supplying the radius and dorsal wrist skin.
- This anatomy supports the creation of fasciocutaneous, osteocutaneous, neurovascular, and muscle flaps.
Findings:
- Seven dorsal wrist flaps successfully reconstructed defects.
- Three of four neurovascular flaps showed arterial patency and good sensory recovery.
- A pronator quadratus free-muscle flap yielded satisfactory functional and cosmetic results for a hypoplastic thumb.
Implications:
- The anterior interosseous artery is a reliable source for diverse free flaps in upper extremity reconstruction.
- These findings expand reconstructive options for complex wrist and hand deformities.
- Further research can optimize flap design and patient selection for improved outcomes.