title: Editorial Commentary: Can Passive Muscle Stiffness in a Cadaveric Study Be Clinically Related to Using Knotted Versus Knotless Rotator Cuff Repair?
abstract: Is a biomechanical cadaveric study to assess the effect of rotator cuff tear size and repair technique on supraspinatus muscle stiffness clinically relevant? A study in this issue compared double-row and knotless transosseous-equivalent repairs, but notably, muscle loading was not simulated. Results showed that the knotless transosseous-equivalent repair for larger tears demonstrated a more uniform stiffness distribution across the supraspinatus muscle compared with the double-row repair. However, given the inherently asymmetrical functional anatomy and morphology of the supraspinatus tendon-muscle unit, when muscle tone exists, the effect of the repair technique on muscle stiffness in vivo may not be determined based on the findings of this study.
authors.affiliation: Woodland Hills, California.
authors.forename: Maxwell C
authors.initials: MC
authors.lastname: Park
mesh_terms: D001696:Biomechanical Phenomena; D002102:Cadaver; D006801:Humans; D017006:Rotator Cuff; D000070636:Rotator Cuff Injuries; D013536:Suture Techniques; D013710:Tendons / Q000601:surgery