Abstract

HOBBS, H; KETSE-MATIWANE, N; VAN DER MERWE, W  and  POSTHUMUS, M. Focal full thickness articular cartilage lesions treated with an articular resurfacing prosthesis in the middle-aged. SA orthop. j. [online]. 2013, vol.12, n.4, pp.41-46. ISSN 2309-8309.

INTRODUCTION: Localised full thickness articular defects of the knee are common and disabling in the middle-aged. There are numerous treatment options for articular defects, the results of which are unpredictable in this age group. The purpose of this study was to evaluate a focal articular resurfacing prosthesis used in the treatment of these defects. METHODS: A consecutive series of patients treated between 2005 and 2010 with a HemiCAP^® resurfacing procedure were retrospectively reviewed. Follow-up scores of the KOOS, IKDC, SF-36 and patient satisfaction were obtained. Radiographic evaluation was also obtained. RESULTS: Twenty-two patients met the inclusion criteria. Nineteen patients were followed-up 4.7 ± 5.9 years after surgery. Three patients had revision surgery and were not followed up. The patients were 44.7 ± 5.9 years old. The follow-up KOOS scores demonstrated comparable scores on the pain and activities of daily living sub-scales when compared to normative data; however, the sports (P<0.001) and quality of life (P=0.001) sub-scales scores were lower in the HemiCAP® patients when compared to normative data. Only the physical functioning sub-scale score of the SF-36, and not the other seven sub-scale scores, was lower (P=0.016) in the HemiCAP® patients when compared to normative data. General patient satisfaction revealed that 79% considered their result as very good or excellent. CONCLUSION: HemiCAP^® articular resurfacing is an effective treatment option for pain in the middle-aged patient with a focal articular cartilage defect in the knee.

Keywords : HemiCAP®; knee cartilage lesion; resurfacing prosthesis; cartilage repair; arthroplasty.

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