Citations 2
Biomechanical Simulation of Rotator Cuff Tear and Glenohumeral Stability
Hsu, Horng Chaung, Luo, Zong-Ping, An, Kai , Luo, Zong-Ping, O’Driscoll, Shawn W.
Advances in Bioengineering | October 7, 2025 | Volume: No volume available | Issue: No issue available | Pages: 145-146
Abstract This study examined in vitro glenohumeral instability under two simulated biomechanical models of rotator cuff tear: 1) tendon-defect model and 2) muscle-unloaded model. The results indicated that rotator cuff tear significantly increased the joint instability. Significant difference also existed between the two tested models. The tendon-defect model underestimated the joint instability in most simulated shoulder positions.
Loading Environment of the Supraspinatus Musculotendinous Unit
Luo, Zong-Ping, Hsu, Horng Chaung, Morrey, B.F. , An, Kai , Luo, Zong-Ping
Advances in Bioengineering | October 7, 2025 | Volume: No volume available | Issue: No issue available | Pages: 147-148
Abstract The stress environment of the extracellular matrix of the supraspinatus tendon, including the stress distribution and concentration, was evaluated by using a finite element model. Stress riser was found around the insertion at the articular side of the tendon. Compressive and shear stresses were observed at the articular side which corresponded to the region associated with fibrocartilaginous matrix. This area corresponded well with the critical zone of potential tear observed clinically.