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Reconstruction of thumb pulp defects using a modified kite flap.

Xu Zhang1, Xinzhong Shao, Chunzhen Ren

  • 1Hand Surgery Department, The Second Hospital of Qinhuangdao, Changli, Qinhuangdao, Hebei, China. ahand@sina.com

The Journal of Hand Surgery
|August 12, 2011
PubMed
Summary

Nerve repair during modified kite flap reconstruction significantly improves thumb pulp sensation. This technique enhances outcomes for thumb pulp defects, offering better sensory recovery compared to standard reconstruction.

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Area of Science:

  • Plastic Surgery
  • Reconstructive Surgery
  • Microsurgery

Background:

  • Thumb pulp defects pose challenges in reconstructive surgery.
  • Restoring sensation is crucial for thumb function and patient satisfaction.

Purpose of the Study:

  • To evaluate the efficacy of a modified kite flap with nerve repair for thumb pulp defects.
  • To assess the impact of nerve coaptation on sensory recovery in reconstructed thumb pulps.

Main Methods:

  • A modified kite flap procedure was performed on 42 patients with thumb pulp defects.
  • The radial branch of the second dorsal digital nerve was coapted to a proper digital nerve of the thumb.
  • Sensory outcomes were evaluated using static 2-point discrimination (2PD) testing and compared to a control group without nerve repair.

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Main Results:

  • The modified kite flap demonstrated high survival rates (40/42 thumbs).
  • The nerve repair group achieved a mean 2PD of 7.9 mm, significantly better than the 12 mm in the non-nerve repair group.
  • Improved sensation was observed in flaps with nerve coaptation.

Conclusions:

  • Nerve repair in conjunction with the modified kite flap is recommended for thumb pulp defect reconstruction.
  • This technique offers superior sensory outcomes, enhancing functional recovery of the thumb.