O2127 UNICOMPARTMENTAL KNEE ARTHROPLASTY IN THE TREATMENT OF MEDIAL KNEE OSTEOARTHRITIS
2004
Aims: The role of unicompartmental knee arthroplasty (UKA) in the treatment of medial knee osteoarthritis (OA) is controversial. The purpose of the study was to analyse our mid-term results of our UKAs operated in 1991 – 94. Method: Patient þles, the special knee arthroplasty form and radiographs were used to retrospectively analyse the results of 155 UKAs in 142 patients operated for medial knee OA. Results: The mean age of the patients was 66,4 years (39–86), and 65,5% of the patients were women. Good pain relief was reached in all cases with an average ROM of 0–121 degrees at 3 months postoperatively. The operations were complicated by superþcial wound infection in three patients (2,1%), deep vein thrombosis in one patient (0,7%), and limited ROM in one patient (0,7%). The survival rate of UKA was 91,6% at 9,4 years. A total of 13 knees were revised with a total knee prosthesis. Polyethylene wear (n=9), disease progression (n=2), aseptic loosening (n=1) and fracture (n=1) were the indications for the revision. The postoperative period was uneventful in all patients, and mean ROM was 0–108 degrees at 3 months. Conclusion: In our experience, UKA is a procedure with rapid recovery, good knee motion and patient satisfaction for the carefully selected patients in the treatment of medial knee OA. Once failed, UKA is safely revised with a routine TKA
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