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Related Experiment Video

Updated: Jul 4, 2025

An Intramedullary Locking Nail for Standardized Fixation of Femur Osteotomies to Analyze Normal and Defective Bone Healing in Mice
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Hook nail deformity.

Marie-Anne Poumellec1, Olivier Camuzard2, Christian Dumontier3

  • 1Clinique Saint-François, 10 Boulevard Pasteur, 06000 Nice, France.

Hand Surgery & Rehabilitation
|January 27, 2024
PubMed
Summary

Hook-nail deformity after fingertip amputation causes significant functional and aesthetic issues. This review analyzes surgical techniques to address this complex problem, aiding clinical decision-making.

Keywords:
Claw-nailFlapsHook-nailMicrosurgeryNailsParrot-Beak deformitySurgery

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Area of Science:

  • Hand surgery
  • Reconstructive surgery
  • Orthopedics

Background:

  • Hook-nail deformity is a common complication following fingertip amputation, impacting both aesthetics and function.
  • The absence of bony support exacerbates this deformity, potentially leading to further complications, including complete finger amputation.
  • Existing surgical correction methods are challenging, with limited published case series.

Purpose of the Study:

  • To systematically review and compare various surgical techniques for correcting hook-nail deformity post-fingertip amputation.
  • To evaluate the outcomes and limitations of each reconstructive approach.
  • To provide guidance for clinicians in selecting the most appropriate surgical strategy for individual patients.

Main Methods:

  • Comprehensive literature search of published techniques for hook-nail deformity correction.
  • Analysis of reported outcomes, including functional and aesthetic results.
  • Comparison of soft-tissue flap augmentation, local bone augmentation, and toe transfer methods.

Main Results:

  • Soft-tissue flap augmentation offers simplicity but lacks bony support.
  • Bone augmentation with local flaps is constrained by the limited size of the distal phalanx remnant.
  • Toe transfer is a viable option but technically demanding, with limited case reports.

Conclusions:

  • Correction of hook-nail deformity is surgically complex, with no single universally superior technique.
  • The choice of reconstruction depends on factors like bony support availability and surgeon expertise.
  • Further research and larger series are needed to optimize treatment strategies for fingertip reconstruction.