Patient-reported Mobility Problems after Total Hip Arthroplasty

Abstract

Patient-reported Mobility Problems after Total Hip Arthroplasty Abstract Background Since 1979 the Swedish Hip Arthroplasty Register (SHAR) has been gathering data on patients being operated with a total hip prosthesis in Sweden. In 2002 SHAR introduced measurement of patient-reported outcomes (PROM) [1]. Six years later all Swedish hospitals were participating in this program. PROM-data are collected preoperatively and one, six and 10 years postoperative. One-year postoperative 14% of patients report having mobility problems associated with the operated hip. Purpose The purpose of this study is to determine whether the patient reported problems with mobility can be identified using gait analysis. Patients & Methods Patients operated at Sahlgrenska University Hospital during years 2011-2013, reporting problems with the mobility 1 year postoperatively were identified (n=54). 25 patients (Group I) accepted participation. A matched cohort (Group II, n=25), reporting no problems with mobility was included as controls. A portable gait analysis instrument was used to analyse the gait pattern. Results Patients reporting problems with mobility had a lower range of motion in the operated hip (p=0.04). Conclusions Our study shows a correlation between patient-reported mobility problems one-year post surgery and decreased hip range of motion measured with GaitSmart™. Further studies are needed to identify the reason for mobility problems in patients operated with a hip prosthesis. Key words Gait analysis, patient-reported outcome, total hip arthroplasty, total hip replacement