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Male gender, younger age associated with infection following total shoulder arthroplasty
Male gender and younger age were associated with a higher risk for deep periprosthetic infection following primary total shoulder arthroplasty, according to researchers from the Mayo Clinic.
The authors investigated prospectively collected data on all primary total shoulder arthroplasty (TSA) patients at the Mayo Clinic Medical Center from 1976 to 2008, assessing primary TSA survivorship free of deep periprosthetic infection as well as what impact patient-related factors, comorbidity, implant fixation and underlying diagnosis might have on infection risk.
In all, the authors reported, 2,207 patients with a mean BMI of 30 who underwent 2,588 primary TSAs. With a mean follow-up of 7 years, there were 32 confirmed deep periprosthetic infections in the cohort. According to the study abstract, the authors found 5-, 10- and 20-year prosthetic infection-free rates of 99.3%, 98.5% and 97.2%, respectively.
Male patients displayed a significantly higher risk of deep periprosthetic infection and older age was associated with lower risk.
“Future studies should investigate whether differences in bone morphology, medical comorbidity or other factors are underlying these associations,” the authors wrote in the abstract.
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Singh JA. 2012. J Shoulder Elbow Surg. doi: 10.1016/j.jse.2012.01.006