To identify trends in patient satisfaction of their knee arthroplasty, total and unicompartmental, one year post primary knee arthroplasty surgery, with reference to age, gender and primary diagnosis, from 1990 to 2008. The Trent Arthroplasty Register was established in 1990 to collect prospective data on knee arthroplasty surgery Data has been recorded relating to 48,929 knee arthroplasties in the period 1990-2008. Self-administered questionnaires were mailed to patients 1 year after their surgery. This PROMS data has been analysed to identify trends in 25,521 patients 62% (24,648) of knee arthroplasties were performed for osteoarthritis and 32% (1,233) for rheumatoid arthritis. 83.6% of osteoarthritic patients (20,244) were satisfied with their knee 1 yr post surgery, 8.5% (2055) unsure and 7.9% dissatisfied. Comparable figures for patients with rheumatoid arthritis were 81.3% (1,028) satisfied, 10.3% (130) unsure and 8.4% dissatisfied. Overall, there was no significant difference in satisfaction rates between different diagnostic groups of patients. In osteoarthritic patients, satisfaction rates have remained the same throughout the last 18 years, in different time periods. The satisfaction rate was 83.2% for the period 1990-1994, 80.9% for 1995-1999, 86.5% for 2000-2004 and 84.1% for 2005-2007. There was no statistically significant difference between the levels of satisfaction for these time periods. The age of the patient did not affect the satisfaction rate.Purpose of the Study
Methods & Results
To identify if the age of the patient was related to satisfaction rates 1 year following unicompartmental knee replacement, in a generalist setting in the U.K. Unicompartmental knee replacement (UKR) is a treatment option for patients presenting with isolated medial compartmental osteoarthritis. In many cases, such patients are aged 65 years or younger. The Trent Arthroplasty Register was established in 1990 collecting prospective data on knee arthroplasties performed in this region of the U.K. Self completed questionnaires were sent to 1081 patients who had had a unicompartmental knee arthroplasty 1 year post surgery. Completed questionnaires were received from 648 patients (60% return rate). Of these patients, 80.2% (451) reported being satisfied, 6.6% (37) unsure of their satisfaction and 13.2% (74) dissatisfied. 78% of those in the 55 or under group (n=92) were satisfied relative to 77.6% in 56-65 yr group (n=264), 90.6% for 66-75 yrs (n=202) and 87.6% for 75+ yrs (73). Increasing age appears to correlate with increased satisfaction rates. Of those who were dissatisfied, severe pain was the primary reason given as a cause for dissatisfaction. In comparison, patients undergoing total knee arthroplasty (TKA), who were sent identical questionnaires, demonstrated no difference in satisfaction rates in each of the different age groups. The overall satisfaction rate in such patients was 90%.Purpose
Methods & Results
