A biomechanical modeling of injury, repair, and rehabilitation of ulnar collateral ligament injuries of the thumb

The influence of sex and trauma impact on the rupture site of the ulnar collateral ligament of the thumb

“…UCL ruptures are known to occur distally in most cases [35, 36]. This is supported by Melone et al [35], who investigated UCL and radial collateral ligament (RCL) injuries.…”

“…However, all UCL disruptions (n = 51) were found to have occurred distally, which might be due to the relatively small study group. Harley et al [36] performed a biomechanical study in which UCL ruptures were induced in 16 fresh-frozen cadaver thumbs by means of forced abduction and extension. Those researchers were able to show that in 63% of the induced injuries, either the ligament rupture or the bony avulsion took place at the site of UCL insertion.…”

Return to Football and Long-Term Clinical Outcomes After Thumb Ulnar Collateral Ligament Suture Anchor Repair in Collegiate Athletes

“…4 Suture anchor repair of complete thumb UCL ruptures has recently gained popularity over other techniques because cadaveric studies have demonstrated equivalent or improved strength and clinical studies have demonstrated fewer complications and excellent outcomes. 3,11,18,20,25,33,34 Our management protocol allowed a different pathway for skill position and noneskill position players. Skill position players had surgery earlier after injury and returned to play later than noneskill position players with no major differences in the level of play at return or clinical outcomes as determined by the QuickDASH.…”

Modeling of the muscle/tendon excursions and moment arms in the thumb using the commercial software anybody

“…They measured the moment arms of four extrinsic muscles and four intrinsic muscles of the thumb as a function of the IP (interphalangeal), MP (metacarpophalangeal) and CMC (carpometacarpal) joint motions using six cadaver specimens. Although there are several biomechanical models of the thumb (e.g., Srinivasan and Landsmeer, 1982;Valero-Cuevas et al, 2003;Harley et al, 2004), most of them were mathematical models developed for specific cases and none of the previous studies have calibrated the model predictions on the muscle excursions with the experimental measurements for the entire range of motions. The goal of this study is to develop a generic, biomechanical model of the thumb and to calibrate the model predictions of the muscle/tendon kinematics with the experimental data by Smutz et al (1998).…”