How does reverse shoulder replacement change proprioception in patients with cuff tear arthropathy? A prospective optical 3D motion analysis study

BackgroundReverse total shoulder arthroplasty (RSA) can improve function in cuff tear arthropathy (CTA) shoulders, but limited data are available on the effect of RSA on proprioception. The purpose of this study was the evaluation of the proprioception after RSA.MethodThis study included fifteen consecutive patients (n = 15) who received an RSA. We measured an active angle reproduction (AAR) by a novel 3D motion analysis using the Heidelberg upper extremity model (HUX).ResultsThe overall proprioception didn't change significantly from 6.2° preoperatively to 6.2° postoperatively.ConclusionWe conclude that, the overall proprioception remained the same or deteriorated for different movements.