Biomechanics of a less invasive procedure for reconstruction of the ulnar collateral ligament of the elbow

Keith S. Hechtman, Evert W. Tjin-A-Tsoi, John E. Zvijac, John W. Uribe, Loren L. Latta

Research output: Contribution to journalArticle

68 Scopus citations

Abstract

A reconstruction of the anterior bundle of the ulnar collateral ligament of the elbow using bone anchors was compared regarding strain and valgus load strength with the intact ulnar collateral ligament and the reconstructed ulnar collateral ligament using bone tunnels. In both normal and reconstructed elbows, the anterior band and posterior band were tight during only a portion of the range of motion. Toward extension, the mean peak strain in the anterior band was tight for the normal and bone anchor groups, but lax in the bone tunnel group. Toward extension, the mean peak strain in the posterior band was lax in all elbows. Toward flexion, the strain in the anterior band was lax in the normal and bone anchor groups, but tight in the bone tunnel group. The mean of the peak strains for the posterior band toward flexion was tight for all elbows. Mean valgus load strength of normal elbows was 22.7 ± 9.0 N · m. The bone tunnel and bone anchor mean strengths were 76.3% and 63.5%, respectively, of normal elbow strength. We concluded that the bone anchor reproduced the normal anatomy and mechanical function of the ulnar collateral ligament more closely than the bone tunnel, and that both reconstruction methods were significantly weaker than the normal ulnar collateral ligament. However, we found no significant difference in reconstruction strength between bone anchor and bone tunnel.

Original languageEnglish (US)
Pages (from-to)620-624
Number of pages5
JournalAmerican Journal of Sports Medicine
Volume26
Issue number5
DOIs
StatePublished - 1998

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Fingerprint Dive into the research topics of 'Biomechanics of a less invasive procedure for reconstruction of the ulnar collateral ligament of the elbow'. Together they form a unique fingerprint.

  • Cite this