The distal radioulnar ligaments: A biomechanical study

F. Schuind, K. N. An, L. Berglund, R. Rey, W. P. Cooney, R. L. Linscheid, E. Y S Chao

Research output: Contribution to journalArticle

189 Citations (Scopus)

Abstract

The mechanical roles of the triangular fibrocartilage have been examined in three experiments. Kinematic analysis by a stereophotogrammetric method revealed that the palmar radioulnar ligament was taut in supination and that the dorsal radioulnar ligament was taut in pronation. In full pronation, the palmar radioulnar ligament decreased to an average of 71% of its length in tension. In full supination, the dorsal radioulnar ligament decreased to an average of 90% of its length. Mechanical testing of the triangular fibrocartilage under axial load disclosed a significant laxity (mean: 10.4 mm), which was decreased in pronation. Transverse loading tests demonstrated that the triangular fibrocartilage is less stiff in neutral forearm rotation. Study of the material properties of the palmar and dorsal parts of the triangular fibrocartilage showed these structures to be strong ligaments with material properties similar to those of the radiocarpal ligaments.

Original languageEnglish (US)
Pages (from-to)1106-1114
Number of pages9
JournalJournal of Hand Surgery
Volume16
Issue number6
StatePublished - 1991

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Triangular Fibrocartilage
Ligaments
Pronation
Supination
Biomechanical Phenomena
Forearm

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Schuind, F., An, K. N., Berglund, L., Rey, R., Cooney, W. P., Linscheid, R. L., & Chao, E. Y. S. (1991). The distal radioulnar ligaments: A biomechanical study. Journal of Hand Surgery, 16(6), 1106-1114.

The distal radioulnar ligaments : A biomechanical study. / Schuind, F.; An, K. N.; Berglund, L.; Rey, R.; Cooney, W. P.; Linscheid, R. L.; Chao, E. Y S.

In: Journal of Hand Surgery, Vol. 16, No. 6, 1991, p. 1106-1114.

Research output: Contribution to journalArticle

Schuind, F, An, KN, Berglund, L, Rey, R, Cooney, WP, Linscheid, RL & Chao, EYS 1991, 'The distal radioulnar ligaments: A biomechanical study', Journal of Hand Surgery, vol. 16, no. 6, pp. 1106-1114.
Schuind F, An KN, Berglund L, Rey R, Cooney WP, Linscheid RL et al. The distal radioulnar ligaments: A biomechanical study. Journal of Hand Surgery. 1991;16(6):1106-1114.
Schuind, F. ; An, K. N. ; Berglund, L. ; Rey, R. ; Cooney, W. P. ; Linscheid, R. L. ; Chao, E. Y S. / The distal radioulnar ligaments : A biomechanical study. In: Journal of Hand Surgery. 1991 ; Vol. 16, No. 6. pp. 1106-1114.
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