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Age, function predict long-term results of TSR with cementless glenoids
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In this study of 32 consecutive patients, implant survivorship of 33 total shoulder replacement procedures was 93% at 10 years in individuals with osteoarthritis and an intact or repairable rotator cuff when surgeons used screw-fixed, porous-coated metal-back uncemented glenoid components.
“The uncemented glenoid performs well in the medium term for osteoarthritis of the shoulder in older patients, giving improved and sustained functional outcome. Age and preoperative function are predictors of outcome and survival,” the researchers wrote in the abstract.
Researchers noted the mean Constant score improved 22 points in 31 shoulders (30 patients) at mean 95 months follow up; two patients died before the 5-year follow-up. The preoperative Constant score was a significant predictor of total shoulder replacement (TSR) survivorship, according to the abstract.
Younger patients and a higher combined preoperative Constant score positively predicted TSR failure in the study.
Regarding implant failure, three shoulders were revised: two revisions were for polyethylene wear at 6-year-follow-up and one shoulder was revised at 11 years for glenoid loosening, as noted in the abstract.
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