Key result
Digital RSA detects early glenoid component loosening more frequently than traditional radiographs.
Why the study?
Does digital roentgen stereophotogrammetric analysis (RSA) improve the detection of early loosening of cemented glenoid components compared to traditional radiographs in patients undergoing total shoulder arthroplasty?
Population
48 patients with cemented glenoid components in total shoulder arthroplasty
Design
Cohort
Follow-up
mean 5.3 years
Authors
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RSA may improve early glenoid loosening detection; leaves open whether it should guide clinical decisions or revision timing.
Observational (n=48)
Does digital roentgen stereophotogrammetric analysis (RSA) improve the detection of early loosening of cemented glenoid components compared to traditional radiographs in patients undergoing total shoulder arthroplasty?
Traditional radiographs underestimate the rate of early loosening of cemented glenoid components in total shoulder arthroplasty compared to digital roentgen stereophotogrammetric analysis (RSA).
Nagels et al. (2002) conducted an observational in Total shoulder arthroplasty (n=48). Cemented glenoid component was evaluated on Radiolucencies and loosening of the glenoid component. Digital roentgen stereophotogrammetric analysis detected loosening in 3 of 5 cemented glenoid components after 3 years, indicating traditional radiographs underestimate early loosening.
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