Abstract
Introduction: Microfracture is found to be effective for isolated chondral defect of knee in young adults however controversy exists over the relevance of microfracture treatment in degenerative knee. The purpose of the study is to assess the outcome and patient satisfaction with the arthroscopic microfracture of osteoarthritic knee.
Materials: We collected the demographic details of the patient, weight, procedure and follow up details from June 2000 to Dec 2002. We reviewed the case notes retrospectively and assessed the patient satisfaction with Oxford knee score and Lysholm score.
Results: There were total of 194 patients but only 76 patients returned the questionnaire. The average patient age was 57 years (range: 27–87 years) with majority of the patients being male patients (43 patients). The average weight of the patient was 82 kg (44–119) and the mean duration of operation was 28 minutes. The patients were evaluated at an average follow-up of 51 months (range: 36–66 months). The average Lysholm score was 49 (4–100) with mean oxford score of 32.5(13–56).
21 patients required knee replacement at an average of 24 months (range: 6–48 months) from the initial microfracture. 17 out of 21 patients had kissing lesion and all showed grade 4 degenerative changes
Discussion: Age and weight does not appear to have any effect on microfracture treatment however more number of female patients seem to have more kissing lesion and poor result. With shorter duration of operation and proper explanation to patient give short term symptomatic relief before replacement surgery. It is worth considering this treatment for isolated grade 4 lesion or less than grade 4 degenerative chondral lesions in appropriately selected patients.
Correspondence should be addressed to Ms Larissa Welti, Scientific Secretary, EFORT Central Office, Technoparkstrasse 1, CH-8005 Zürich, Switzerland
