Locking of the metacarpophalangeal joint as a result of the shape of the metacarpal head in achondroplasia

J Hand Surg Eur Vol. 2007 Oct;32(5):588-90. doi: 10.1016/J.JHSE.2007.05.009. Epub 2007 Aug 6.

Abstract

A 21 year-old woman with achondroplasia exhibited locking of the metacarpophalangeal joint of the right index finger which required surgery to release the joint. Locking was confirmed to be due to entrapment of the fan-like part of the radial collateral ligament on a metacarpal head prominence arising from epiphysial thickening.

Publication types

  • Case Reports

MeSH terms

  • Achondroplasia / diagnostic imaging*
  • Achondroplasia / surgery
  • Adult
  • Collateral Ligaments / diagnostic imaging*
  • Collateral Ligaments / surgery
  • Female
  • Follow-Up Studies
  • Humans
  • Image Processing, Computer-Assisted*
  • Imaging, Three-Dimensional*
  • Metacarpophalangeal Joint / abnormalities*
  • Metacarpophalangeal Joint / diagnostic imaging
  • Metacarpophalangeal Joint / surgery
  • Range of Motion, Articular / physiology
  • Tomography, X-Ray Computed*