Constraint and material properties of the subregions of the scapholunate interosseous ligament

Richard A. Berger, Toshihiko Imeada, Lawrence Berglund, Kai Nan An

Research output: Contribution to journalArticle

153 Scopus citations

Abstract

The material and constraint properties of the dorsal, proximal, and palmar regions of the scapholunate ligament were studied using isolated bone- ligament-bone preparations from 24 adult intact cadaver wrists. Determinations of constraint to differential rotation and translation as well as failure strength were made using a servohydraulic testing machine incorporating an additional rotatory actuator. The dorsal region of the scapholunate ligament offered the greatest constraint to differential translation, while both the dorsal and palmar regions demonstrated statistically significant combined constraints to differential rotation between the scaphoid and lunate. The greatest yield strength was found in the dorsal region (260.3 N ± 118.1 N), followed by the palmar region (117.9 N ± 21.3 N) and the proximal region (62.7 N ± 32.2 N).

Original languageEnglish (US)
Pages (from-to)953-962
Number of pages10
JournalJournal of Hand Surgery
Volume24
Issue number5
DOIs
StatePublished - Sep 1999

Keywords

  • Biomechanics
  • Carpal
  • Ligament
  • Scapholunate

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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