• Yvonne M Golightly, Jeremiah J Tate, Charles B Burns, and Michael T Gross.
• Durham Veterans Affairs Medical Center, Durham, NC, USA.
• J Orthop Sports Phys Ther. 2007 Jul 1; 37 (7): 380-8.

Study DesignPreassessment and postassessment of treatment intervention.ObjectiveTo determine the changes in pain and disability secondary to shoe lift intervention for subjects with chronic low back pain (LBP) who have a limb length inequality (LLI).BackgroundPrevious reports have suggested that LLI may be a cause of LBP Most prior studies of lift therapy for management of LLI in patients with LBP have lacked clear guidelines for clinicians regarding the implementation of shoe lift intervention.Methods And MeasuresTwelve subjects (6 male, 6 female) between the ages of 19 and 62 years with LLI (6.4-22.2 mm) and chronic LBP (1-30 years) participated. Visual analog scale pain ratings and disability questionnaire scores were acquired before and after lift intervention. Subjects determined their lift height based on resolution of LBP symptoms.ResultsSubjects experienced relief of general pain symptoms (P = .0006) and pain associated with standing (P= .002) following lift intervention, with minimally clinically important (MCID) reductions in general pain for 9 of 12 subjects and MCID reductions in standing pain for 8 of 10 subjects. Subjects also had less disability on the disability questionnaire (P = .001) following the intervention, with 9 of 12 subjects experiencing MCID reductions in disability.ConclusionShoe lifts may reduce LBP and improve function for patients who have chronic LBP and an LLI. Randomized controlled trials are needed to assess the efficacy of this intervention.

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