Understanding when heel lifts help asymmetry and hip level differences, and when conservative correction is most effective.
Heel lifts are most effective when asymmetry causes hip level differences and compensatory movement patterns. They work best for functional discrepancies caused by muscle imbalances, joint restrictions, or postural adaptations. Clinician evaluation is essential to distinguish functional from structural LLD and determine appropriate lift height, typically starting with 3-6mm corrections.
Functional leg length discrepancy differs from structural (anatomical) discrepancy. While structural LLD involves actual bone length differences, functional LLD results from compensatory patterns, muscle imbalances, or joint restrictions that create apparent length differences.
Start with 3-6mm lifts and gradually increase over 2-4 weeks. Most functional discrepancies require no more than 12-15mm correction.
Assess pain reduction, gait symmetry, and functional improvement. Discontinue if symptoms worsen or new problems develop.
Combine with physical therapy, stretching, and strengthening to address underlying functional limitations.
Determine if your symptoms are related to functional leg length discrepancy with our AI-powered foot analysis.
Start Your AssessmentHeel lifts help when asymmetry causes hip level differences and compensatory movement patterns. They're most effective for functional discrepancies caused by muscle imbalances, joint restrictions, or postural adaptations rather than true anatomical differences.
Start with 3-6mm lifts and gradually increase. Most functional discrepancies require no more than 12-15mm correction. Excessive lifts can cause Achilles tendon tightness and forefoot pressure issues.
Avoid heel lifts when structural leg length differences exceed 20mm, with Achilles tendon tightness, severe ankle equinus, or when the apparent discrepancy is caused by scoliosis or pelvic rotation rather than leg length difference.
Functional discrepancy often improves with position changes, muscle stretching, or manual therapy. Structural discrepancy remains constant regardless of positioning. Clinical examination by a healthcare provider can determine the difference and appropriate treatment.