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Related Experiment Videos

A reverse ulnar hypothenar flap for finger reconstruction.

S Omokawa1, H Yajima, Y Inada

  • 1Department of Orthopedics at Ishinkai-Yao General Hospital, Osaka, Japan. omokawa@kcn.ne.jp

Plastic and Reconstructive Surgery
|September 28, 2000
PubMed
Summary

The reverse-flow island flap from the hypothenar eminence effectively reconstructs little finger defects. This surgical technique offers durable, sensate reconstruction with minimal donor site issues.

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Area of Science:

  • Hand surgery
  • Plastic surgery
  • Reconstructive surgery

Background:

  • Palmar skin defects, amputation injuries, and flexion contractures of the little finger require effective reconstructive solutions.
  • The hypothenar eminence offers a potential donor site for reconstructive flaps due to its vascularity and tissue composition.

Observation:

  • A reverse-flow island fasciocutaneous flap, based on the ulnar palmar digital artery, was utilized in 11 patients to address defects of the little finger.
  • Flaps ranged from 3 x 1.5 to 5 x 2 cm and were raised from the ulnar aspect of the hypothenar eminence, overlying the abductor digiti minimi muscle.
  • In three patients, the flap was designed to incorporate sensory nerve branches for improved tactile sensation.

Findings:

  • All 11 flaps survived without complications, with an average follow-up of 42 months.

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  • Primary closure of the donor site resulted in no significant patient complaints.
  • Patients receiving sensate flaps demonstrated satisfactory sensory reinnervation, with 5 mm moving two-point discrimination.

    • Implications:

    • The reverse-flow island flap from the hypothenar eminence is a reliable and easily elevated option for reconstructing palmar skin and soft-tissue defects of the little finger.
    • The flap's durable fasciocutaneous composition, good color match, and texture make it a suitable alternative for digital reconstruction.
    • Sensory potential of the flap enhances functional recovery and patient satisfaction in reconstructive procedures.