Rotational stability of the carpus relative to the forearm

Marco J.P.F. Ritt, Paul R. Stuart, Lawrence J. Berglund, Ronald L. Linscheid, William P. Conney, Kai Nan An

研究成果: Article同行評審

35 引文 斯高帕斯(Scopus)

摘要

To perform rotational tasks adequately, the rotational laxity between the radius and the carpus must be constrained within a certain limit. The contribution of nine individual capsuloligamentous structures to the rotational stability of the radiocarpal joint was studied using 14 freshfrozen human cadaveric specimens. Torque-rotation curves, with sequential section of the soft-tissue structures, were used to calculate the percentage contribution of each individual structure. The primary pronation constraint was the palmar radioscaphocapitate ligament. The contributions to supination constraint were more complex; the dorsal radiotriquetral ligament was dominant, assisted by the palmar ulnolunate ligament. Structures originating from the ulna changed their major constraint contribution with forearm orientation, whereas those with a radial origin had a constant contribution independent of forearm rotation. Injury of these structures may lead to rotational instability at the radiocarpal level and should be considered when treating carpal instabilities.

原文English
頁(從 - 到)305-311
頁數7
期刊Journal of Hand Surgery
20
發行號2
DOIs
出版狀態Published - 1995 三月

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

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