PA167 A Prospective Case-Control Study Comparing Health Related Quality of Life of Patients Undergoing Total Knee Replacement Vs Total Hip Replacement

Background: Our prospective case-control study aims to compare the influence of a rehabilitative program in patients with otal hip replacement (THR) and total knee replacement (TKR) in terms of Health Related Quality of Life (HRQoL). Material and Methods: We included men and women aged 50 years or older, with a severe OA, who underwent THR and TKR, from January 2014 to July 2014. They were divided into two groups, depending on the surgical intervention: THR and TKR. All the participants in each group underwent the same rehabilitative treatment, starting the day after surgery, and were treated by the same rehabilitative team. The primary outcome measure was the 12-Item Short Form Health Survey (SF-12). Secondary outcome measures assessed were: the Numeric Rating Scale (NRS), the Modified Rankin Scale (MRS), and the Functional Ambulation Categories (FAC). Follow up evaluations were done at 1 week (T1), 1 month (T2), and 3 months (T3) after surgery. Results: We assessed 52 patients with total joint replacement, 21 male and 31 female, mean aged 71.35 years with a mean BMI of 28.44 kg/m2. Twenty-two patients with THR (42.31%), 9 male and 13 female, mean aged 70.41 years with a mean BMI of 26.32 kg/m2, had a SF-12 PCS of 27.57±5.70 and a SF-12 MCS of 53.73±5.59 at T0 and had a SF-12 PCS of 48.90±2.74 and a SF-12 MCS of 55.12±3.25 at T3. Thirty patients with TKR (57.69%), 12 male and 18 female, mean aged 72.03 years, with a mean BMI of 30.00 kg/m2, had a SF-12 PCS of 25.18±2.95 and a SF-12 MCS of 39.01±6.51 at T0 and had a SF-12 PCS of 31.75±3.97 and a SF-12 MCS of 48.43±4.15 at T3. There was a statistical significant difference between patients with THR and patients with TKR for all outcome measures, except FAC, at T3. Conclusion: In conclusion, the results of our study suggest that patients with TKR had a worse functional outcome than patients with THR, in terms of quality of life, pain, and disability or dependence.