Changes of and interrelationships between performance-based function and gait and patient-reported function 1 year after total hip arthroplasty

Journal of Orthopaedics and Traumatology

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[1] 0000 0004 1937 0626, grid.4714.6, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden;0000 0000 9241 5705, grid.24381.3c, Department of Orthopedics, Karolinska University Hospital, Stockholm, Sweden;Department of Women’s and Children’s Health, Karolinska Institutet, Karolinska University Hospital, 17176, Stockholm, Sverige;

关键词: Performance;    Function;    Gait;    Mobility;    Osteoarthritis;    Hip;    Arthroplasty;   

DOI  :  10.1186/s10195-019-0521-7

来源: publisher

【 摘 要 】

BackgroundThe aim of this prospective study is to evaluate the degree of improvement in, and interrelationships between, performance-based function, gait, and patient-reported function 1 year after total hip arthroplasty (THA) in patients with primary hip osteoarthritis (OA).Materials and methodsThirty-four patients with hip OA, with a mean age of 67 years (standard deviation, SD 9 years), and 25 age- and gender-matched healthy controls performed three performance-based functional tests, instrumented three-dimensional gait analysis, and completed the Hip disability and Osteoarthritis Outcome Score prior to and 1 year after THA. Effect sizes with 95 % confidence intervals were calculated as measures of the magnitude of improvement in performance after surgery.ResultsPerformance-based function displayed large improvements 1 year after THA. Overall gait patterns, quantified using a kinematic and a kinetic gait index, respectively, revealed moderate improvements in kinematics of the operated limb and kinetics of the contralateral limb. Patient-reported function displayed the largest improvement after surgery.ConclusionsThe findings of this study suggest that objectively measured improvements in performance-based function and gait are not in line with patient-reported functional improvements, highlighting the importance of using both subjective and objective methods for evaluating function following THA.Level of evidenceIII.

【 授权许可】

CC BY