
Addressing Structural Asymmetries: The Role of Heel Lifts in Gait Mechanics
How do you determine when a leg length discrepancy requires structural intervention?
In this episode of Untold Physio Stories, Dr. Wells presents a case study of an 80-year-old patient managing the long-term effects of a complex total hip replacement. Following a revision surgery two decades ago, the patient was left with a 2cm leg length discrepancy on her right side.
While she remained active with yoga and Pilates for years, a recent decrease in activity led to noticeable changes in her gait and discomfort in her lower extremities.
Structural Findings: A functional and anatomical measurement confirmed the right lower extremity was 2cm longer than the left.
Gait Observations: Assessment revealed a compensatory trunk lean to the right to facilitate clearing the left leg during the swing phase.
Joint Mechanics: The patient exhibited significant pronation in the right ankle and a varus thrust in the left knee during ambulation.
Strength Deficits: Evaluation showed weakness in the left gluteal and quadriceps muscle groups.
Dr. Wells opted for a dual-track approach:
Conservative Structural Support: A 0.5-inch heel lift was introduced to the shorter side to improve gait symmetry without causing discomfort or heel slippage.
Targeted Exercise Prescription: Resistance training was initiated to improve quadriceps and gluteal strength, specifically focusing on knee tracking and core stability.
We also contrast this with Dr. E’s experience managing a post-polio patient, where the goal was actually reducing an excessive 3-inch external lift to restore lost hip and knee extension. This episode explores the balance between providing structural support and maintaining joint mobility.
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