Aims
The aim of this study was to evaluate the clinical and radiological
outcome of using an anatomical short-stem shoulder prosthesis to
treat primary osteoarthritis of the glenohumeral joint.
Patients and Methods
A total of 66 patients (67 shoulders) with a mean age of 76 years
(63 to 92) were available for clinical and radiological follow-up
at two different timepoints (T1, mean 2.6 years, sd 0.5;
T2, mean 5.3 years, sd 0.7). Postoperative radiographs
were analyzed for stem angle, cortical contact, and filling ratio
of the stem. Follow-up radiographs were analyzed for timing and
location of bone adaptation (cortical bone narrowing, osteopenia,
spot welds, and condensation lines). The bone adaptation was classified
as low (between zero and three features of bone remodelling around
the humeral stem) or high (four or more features).
