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High percentage of radiolucency found around shortstem pressfit humeral component for TSA
At short-term follow-up, patients who underwent total shoulder arthroplasty had a high percentage of radiolucency around the short-stem press-fit humeral component, according to results.
Researchers evaluated radiographs and clinical outcomes in the immediate postoperative period and at the most recent follow-up for patients who underwent primary total shoulder arthroplasty (TSA) with the Aequalis Ascend (Tornier) short-stem press-fit humeral implant between January 2008 and December 2011.
Although 73 shoulders were available for follow-up, four shoulders underwent revision at less than 24 months after the index procedure. This left 69 shoulders with radiographic follow-up for at least 24 months, according to the study abstract.
Results showed five humeral stem revisions among the 69 shoulders with at least 24 months of radiographic data and clinical outcome. Of the original 73 shoulders, there was an overall revision rate for humeral loosening of 8.2%.
Researchers found 71.01% of shoulders had radiolucency zones around the stem, regardless of size or stability of the radiolucency zones. Researchers also noted 18.84% of shoulders had condensation lines and 8.7% of shoulders had a risk of loosening at the humeral stem.
In a subgroup of 62 shoulders that had both radiographic and clinical outcome data, results showed a statistically significant improvement between preoperative and postoperative clinical outcome measurements, including the American Shoulder and Elbow Surgeons (ASES) score, adjusted ASES pain score, Constant score, forward flexion, abduction and external rotation, as well as other improvements in the satisfaction score and internal rotation. – by Casey Tingle
Disclosures: Casagrande reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.