Hip Implant Forces During Gait: A Comprehensive Literature Review
VerifiedAdded on 2019/12/28
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Literature Review
AI Summary
This literature review examines the forces experienced by hip implants during the gait cycle, drawing on studies that use instrumented hip replacements and gait analysis. It highlights the variability in force magnitude and direction between hips, even in the same patient, and explores the influence of factors like muscle strength, implant placement, and natural physiological differences. The review covers forces generated during various activities, including walking at different speeds, stair climbing, and stumbling, noting that stumbling events can generate the most intense forces. The literature suggests that peak forces during gait typically occur at heel strike, though some studies report higher forces at toe-off. The review also discusses the use of electromyography (EMG) to investigate muscle activity during gait and to validate musculoskeletal models, emphasizing the challenges in calibrating EMG data to predict muscle forces accurately. The review concludes by emphasizing the importance of understanding and quantifying hip forces for modeling and testing replacement joints under realistic conditions.
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