Abstract

Abstract Introduction Humeral head resurfacing has fallen out of favour owing to high reported revision rates. We present 10-15 year follow up data for the Global Conservative Anatomical Prosthesis (CAP). Methods Patients who underwent humeral head resurfacing using the Global CAP between March 2005 and May 2010 were contacted via telephone. All operations were performed by a single surgeon. Patients rated pain and satisfaction on a 11-point numerical scale (0-10). Oxford shoulder scores (OSS) and Quick-DASH scores were also completed. Results Some 46 patients (49 resurfacings) were identified. 20 patients were deceased, 3 had been revised, 3 were uncontactable and 1 developed dementia. Complete data was obtained for 19 patients (73% response rate). The mean respondent age at time of surgery was 68.8 years. 68% were female. The principal indication was osteoarthritis (74%). The mean pain score was 2.2 with a mean satisfaction score of 6.9. The mean OSS was 43.1 and mean Quick-DASH 14.1 indicating good shoulder function. When stratified according to age at time of surgery, younger patients (<65) were found to have higher OSS (p=0.036) and lower Quick-DASH scores (p=0.029) at follow up (Mann-Whitney U Test). Conclusion At 10 year follow up, patients who underwent humeral head resurfacing had low pain scores, high satisfaction scores and good patient reported outcome measures. We propose that humeral head resurfacing retains value, particularly for painful osteoarthritis in younger patients who do not wish to undergo total shoulder replacement. The operation is simple and preserves humeral bone stock for future surgery.

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