• Meredith A Newman, Karen L Barker, Hemant Pandit, and David W Murray.
• Physiotherapy Research Unit, Nuffield Orthopaedic Centre NHS Trust, Oxford, UK. Meredith.newman@noc.anglox.nhs.uk
• Arch Phys Med Rehabil. 2008 Apr 1;89(4):660-6.

ObjectiveTo report functional outcomes after metal-on-metal (MOM) hip resurfacing.DesignA cohort of 126 MOM hip resurfacing operations were reviewed 1 year after surgery.SettingHospital trust specializing in orthopedic surgery.ParticipantsSixty-seven right and 59 left hips were reviewed in patients (N=120; 71 men, 49 women; mean age, 56+/-9y; range, 24-76y).InterventionsNot applicable.Main Outcome MeasuresAdministered once at follow-up. Function was measured using the Oxford Hip Score (OHS), Hip disability and Osteoarthritis Outcome Score, and UCLA Activity Score. Complications, pain, range of motion, Trendelenburg test, strength, walking, single-leg stand, stair climbing, and 10-m walk time were assessed.ResultsOverall examination was satisfactory with few complications. High functional levels were reported. The median OHS was 15 and median UCLA Activity Score 7 (active). For 25%, outcome was poor with persistent pain, reduced hip flexion (mean, 94.46 degrees +/-12.7 degrees ), decreased strength (P<.001), restricted walking, and functional limitations.ConclusionsInformation about outcomes is important for patients undergoing surgery. Hip resurfacing remains an emergent technology, with further follow-up and investigation warranted. One explanation for suboptimal recovery may be current rehabilitation, originally developed after total hip arthroplasty. Rehabilitation tailored to hip resurfacing, paced for this active population and progressed to higher demand activities, may improve outcomes.

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