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Orthopedics. 1996 Aug;19(8):691-5.

Radiographic progression to dorsal intercalated segment instability.

Author information

1
Department of Orthopedics Yale University School of Medicine, New Haven, Conn, 06520-8071, USA.

Abstract

We present a case of an acute hyper-extension wrist injury that progressed from normal carpal alignment to dorsal intercalated segment instability over a short period of time. Disruption of the scapholunate interosseous and radioscapholunate ligaments was proven arthroscopically, while the intercapsular ligaments were demonstrated to be intact. We have shown that lunate malalignment can occur over time, as secondary lunate ligamentous supports attenuate under abnormal carpal kinetics.

PMID:
8856782
[Indexed for MEDLINE]

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