U.S., March 12 -- ClinicalTrials.gov registry received information related to the study (NCT07464977) titled 'EMG and Delta Function in Standard RTSA vs Lateralization' on Aug. 10, 2024.
Brief Summary: Reverse total shoulder arthroplasty (RTSA) is a well-established method to treat patients with irreparable rotator cuff tears and glenohumeral osteoarthritis. The biomechanical principle implies a medialization and distalization of the center of rotation (COR). Deficiencies in internal and external rotation constitute frequently encountered functional problems. Some studies showed reduced activation of the posterior deltoid in EMG measurements, which may explain the inability to compensate these movements. Lateralized prosthetic designs demo...