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Locking of the Metacarpophalangeal Joint as a Result of the Shape of the Metacarpal Head in Achondroplasia

From the Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan

Correspondence: Dr Yoshitaka Hamada, Institute of Health Biosciences, Tokushima, Japan. E-mail:hamada-yoshitaka{at}umin.ac.jp

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.

Key Words: locked metacarpophalangeal joint • achondroplasia

Journal of Hand Surgery (European Volume), Vol. 32, No. 5, 588-590 (2007)
DOI: 10.1016/J.JHSE.2007.05.009


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