HIP ARTHROSCOPY FOR FEMOROACETABULAR IMPINGEMENT IN PATIENTS AGED 50 YEARS AND OVER

Arthroscopy, 2011
Philippon MJ, Souza BG, Briggs KK
The aim of this study was to investigate the results after hip arthroscopy in a consecutive series of patients aged 50 years and over, and to measure the number of patients who avoided total hip arthroplasty.
Between 2006 and 2008, data were collected prospectively from the database for 153 patients aged 50 years and over who had undergone hip arthroscopy for femoroacetabular impingement. The data collected included range of motion, the modified Harris Hip Score (MHHS), the Hip Outcome Score (HOS) for activities of daily living, the HOS for sporting activities, and the Short Form 12 scale. Patients who did not require total hip arthroplasty were classed as survivors. Survival was analysed by the Kaplan-Meier method.
Total hip arthroplasty was required in 20% of patients (31 of the 153). At 3 years (data for 64 patients), patients with a joint space greater than 2 mm had a survival of 90%, while those with less than 2 mm had a survival of 57% (P=0.001). In the patients who did not require total hip arthroplasty, the MHHS improved from 58 to 84. The HOS for activities of daily living improved from 66 to 87 (P=0.001), and the HOS for sporting activities from 42 to 72 (P=0.001). The physical component of the Short Form 12 improved from 38 to 49 (P=0.001), while the mental component did not change (54 preoperatively versus 53 postoperatively, P=0.53). The median patient satisfaction score was 9.
On the basis of the early results, patients with a joint space greater than 2 mm can expect an improvement compared with their preoperative state in terms of pain and function after hip arthroscopy for femoroacetabular impingement. In patients aged over 50 with a joint space of 2 mm or less and a low MHHS, early conversion to total hip arthroplasty was observed.