The Copeland RHHI causes significantly increased LGHO and leads to overstuffing in the shoulder joint. The WOOS score in the cohort was comparable to that for all other Danish patients operated with a Copeland RHHI.

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Radiostereometric analysis and DXA can be used for evaluation of RHHI, but expectedly with a lower precision as compared to standards of TKA or THA. Geometric analysis of the prosthetic shoulder is precise. We interpret that the early radiological and clinical results of the two RHHI are comparable.

This study aimed to evaluate whether computed tomography improves the intra- and inter-observer reliability of the Eaton-Glickel classification of trapeziometacarpal joint osteoarthritis. The osteoarthritis of the trapeziometacarpal joint was evaluated with conventional radiographs and computed tomography by two hand surgeons, two registrars and one radiologist in 50 hands of 43 patients (12 male and 31 female) who had a median age of 60 years (46-80). Using plain radiographs, we found a mean intra-observer reliability of 0.54 (0.51-0.74), and the intra-observer reliability was improved to 0.76 (0.64-0.86) using computed tomography. Using plain radiographs, the mean inter-observer reliability was poor at 0.17 (0.04-0.51) and did not improve using computed tomography with a mean inter-observer reliability of 0.22 (0.02-0.38). In particular, the agreement in the distinction between Eaton-Glickel stage III and IV and the evaluation of the degenerative changes in the scaphotrapezio joint was low using computed tomography-scans. The detection of bone cysts on computed tomography was more precise than on plain radiographs.