The aim of the study was to assess proprioception after shoulder arthroplasty. Twenty-six patients were enrolled who underwent total shoulder arthroplasty (TSA) (n=13) or hemi-arthroplasty (n=8) for shoulder osteoarthritis or reversed arthroplasty (n=5) for cuff tear arthropathy. All patients were examined before the operation and then again six months thereafter in a motion analysis study with an active angle-reproduction (AAR) test. In all groups the AAR deteriorated at 60°flexion (from 5.5°[SD 2.8] to 7.6°[SD 2.7]; p=0.007) and at 30°external rotation (ER) (from 6.5° [SD 3.6] to 7.3°[SD 4.8°]; p=0.023) six months after surgery. In the subgroup of TSA, there was deterioration at 30°ER (p=0.036). Otherwise, there were no significant changes within or among the subgroups. Proprioception, assessed by the AAR test, remained unchanged or deteriorated six months after shoulder arthroplasty. This might be related to the reduced pain or to the relatively short follow-up period.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.