Carpal Instability-Annual Meeting 2014: Biomechanics/Pathomechanics of Scapholunate Injuries

Annual Meeting 2014: Biomechanics/Pathomechanics of Scapholunate Injuries

Video Transcription

Video Summary

In this video, Dr. Walter Short from Syracuse discusses the biomechanics and pathomechanics of the scapholunate joint. He explains that several factors, including ligaments, bony geometry, wrist movement direction, and transmitted forces, determine the biomechanics of the scapholunate interval. Dr. Short discusses the various ligaments involved, their mechanical properties, and methodologies to evaluate scapholunate biomechanics. His experiments involved sectioning ligaments and analyzing the resulting changes in carpal motion. He concludes that the scapholunate ligament is the primary stabilizer, while other ligaments act as secondary restraints. Bony geometry also contributes to stability, and reconstructing the scapholunate ligament can restore normal or near-normal biomechanics.

Keywords

biomechanics

pathomechanics

scapholunate joint

ligaments

bony geometry