Unilateral total hip replacement patients with symptomatic leg length inequality have abnormal hip biomechanics during walking.
Bottom Line: The leg length inequality patients had altered functions defined by lower gait velocity, reduced stride length, reduced ground reaction force, decreased hip range of motion, reduced hip moment and less dynamic hip force with a 24% lower heel-strike peak, 66% higher mid-stance trough and 37% lower toe-off peak.These gait adaptions may affect the function of the implant and other healthy joints in symptomatic leg length inequality patients.This study provides important information for the musculoskeletal function and rehabilitation of symptomatic leg length inequality patients.
Affiliation: Department of Design Engineering, School of Science and Technology, Middlesex University, UK.Show MeSH
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Mentions: The mean hip contact force for the operated and non-operated limbs in the LLI and THR patients, along with that of the normal individuals, is shown in Fig. 3. Compared with the normal cohort, alteration in hip loads was found for both the operated and non-operated limbs of the LLI and THR patients. Differences between operated and non-operated limbs were not significantly different however, in either the LLI or THR patients (P > 0.05).
Affiliation: Department of Design Engineering, School of Science and Technology, Middlesex University, UK.