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Irreducible buttonhole-type metacarpophalangeal thumb dislocation: a case report

Dina Aprilya1, Oryza Satria1, Febry Prayugo2

  • 1Department of Orthopaedic and Traumatology, Fatmawati General Hospital - Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia.

International Journal of Surgery Case Reports
|March 16, 2026
PubMed
Summary

Buttonhole dislocation of the thumb's Metacarpophalangeal (MCP) joint is rare and often irreducible. Surgical management via a dorsal approach successfully restored joint stability by releasing the interpositioned volar plate.

Keywords:
buttonhole dislocationmetacarpophalangeal dislocationopen reductionrare casethumbvolar plate interposition

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