Abstract
Introduction and Aims: Despite comprehensive literature on knee arthroplasty outcomes there is a paucity of data on patient satisfaction and functional outcomes. We have examined patient satisfaction, function, and time to return to sport and activities of daily living.
Method: A retrospective cohort study using self-assessment forms reviewed all patients who had undergone an Oxford uni-compartmental knee replacement in one centre from 2000 to 2003 at a minimum one-year post-surgery. One hundred and fifty patients with 183 UKRs were reviewed. Twenty-two had bilateral surgery. The cohort contained 76 males and 74 females of mean age 71.5 years (range 52–90). Patients were assessed using the Oxford knee score and a further score of how ‘normal’ their knee felt. Physical activity was assessed according to Grimby’s scale. Sporting activity was assessed with regards to pre- and post-operative frequency, time taken to return to sport, and pain during and after exercise. Time to return to work was also noted.
Results: Mean Oxford knee score for males was 21.6 (range 12–43, SD 8.25) and females 22.8 (range 12–54, SD 9.78). Mean Grimby’s score for males was 4.1 (range 1–6, SD 1.2) and for females 3.6 (range 1–6, SDI.2). Mean time to return to walking as exercise was 7.9 weeks (range 1–47.6, SD 8.9), to swimming was 10 weeks (range 1–34.6, SD 9.9), to cycling 11.8 weeks (range 1–34.7, SD 11) to lawn bowling 24.5 weeks (range 4–104, SD 26.2) and golf 12.3 weeks (range 3–33.3, SD8.73). Return to sport, activities of daily living and return to work positively correlated to the patients’ perception of how ‘normal’ their knee felt.
Conclusion: This study observes activity levels and times to return to ADLs, work and sport that is a guide for patient education and post-operative expectation. When compared to a recent study of total knee arthroplasty patients from our institution the uni-compartmental patients were more satisfied and more active. Patients were more active pre-operatively and post-operatively, they were less likely to give up sport following surgery.
These abstracts were prepared by Editorial Secretary, George Sikorski. Correspondence should be addressed to Australian Orthopaedic Association, Ground Floor, The William Bland Centre, 229 Macquarie Street, Sydney, NSW 2000, Australia.
None of the authors is receiving any financial benefit or support from any source.
