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Related Experiment Video

Updated: Jan 30, 2026

Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach
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Metacarpal bone reconstruction by a cementless induced membrane technique.

J-C Murison1, G Pfister1, S Amar1

  • 1Department of orthopedic, trauma and reconstructive surgery, Percy Military Hospital, 101, avenue Henri Barbusse, 92140 Clamart, France.

Hand Surgery & Rehabilitation
|January 29, 2019
PubMed
Summary

The induced membrane technique effectively reconstructs large bone defects from gunshot wounds. A polypropylene syringe body successfully replaced unavailable polymethylmethacrylate cement, achieving bone union in limited-resource settings.

Keywords:
Gunshot woundInduced membraneMembrane induiteMetacarpal boneMétacarpienPolypropylenePolypropylèneTraumatisme balistique

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Area of Science:

  • Orthopedic Surgery
  • Trauma Surgery
  • Regenerative Medicine

Background:

  • Gunshot wounds to the hand frequently cause complex injuries with significant segmental bone defects, posing a reconstructive challenge.
  • The induced membrane technique offers a viable solution for segmental bone defect reconstruction, though typically requires polymethylmethacrylate (PMMA) cement.

Observation:

  • This study explored adapting the induced membrane technique in a limited-resource environment where PMMA cement was unavailable.
  • Two patients with metacarpal bone defects from gunshot wounds were treated using a polypropylene syringe body as a spacer instead of PMMA cement.

Findings:

  • A robust induced membrane formed around the polypropylene spacer within 6 weeks in both treated patients.
  • Successful bone union was achieved in all four cases of metacarpal reconstruction, including the two treated with the syringe body modification.

Implications:

  • This adaptation demonstrates the induced membrane technique's versatility and potential for successful bone reconstruction even without standard materials.
  • The findings suggest a cost-effective and accessible alternative for treating complex bone defects in resource-limited settings, improving patient outcomes.