These authors presents results of the Arthrex Eclipse prosthesis in 51 with a mean follow-up of 70 months.
Significant improvements from preop to last follow-up were documented in Constant-Murley score (53.8% - 83.5%, p<0.001), active range of motion (abduction 84° - 108°, flexion 98° - 125° and external rotation 19° - 41°). There was no significant difference between total- and hemiarthroplasty. The mean DASH score was 28.3 points (95% CI 20.1 – 35.2). Lowering of bone mineral density was observed in anteroposterior-radiographs at the humeral component in 24.5%, at the glenoid component in 33.3%.
In the postoperative radiographs of 5 patients, minor cracks of the humeral cortex were detected.
The rate of complications was 15.7%.
1 transient upper trunk brachial plexus palsy.
1 subscapularis insufficiency with chronic anterior luxation of the glenohumeral joint and concomitant dislocation of the glenoid component.
1 arthroscopic arthrolysis
8 patients (15.7%) had to be surgically revised
1 early periprosthetic infection led to a component change. Because of recurring subluxations one humeral head had to be changed into
2 revisions for glenoid wear
5 patients were revised due to rotator cuff and biceps tears
Comment: While there may be theoretical advantages of a stemless humeral component, this article does not provide evidence that this component provides increased value to the patient over a standard humeral component.
