Abstract Ehde DM, Smith DG, Czerniecki JM, Campbell KM, Malchow DM, Robinson LR. Back pain as a secondary disability in persons with lower limb amputations. Arch Phys Med Rehabil 2001;82:731-4. Objective: To evaluate the frequency, duration, intensity, and interference of back pain in a sample of persons with lower limb amputations. Design: Retrospective, cross-sectional survey. Setting: Community-based survey from clinical databases. Participants: Participants who were 6 or more months post lower limb amputation (n = 255). Intervention: An amputation pain survey that included several standardized pain measures. Main Outcome Measures: Frequency, duration, intensity, and interference of back pain. Results: Of the participants who completed the survey (return rate, 56%), 52% reported experiencing persistent, bothersome back pain. Of these, 43% reported average back pain intensity in the mild range (1-4 on 0-10 rating scale) and 25% reported pain of moderate intensity (5-6 on 0-10 scale). Most respondents with back pain rated the interference of their pain on function as none to minimal. However, nearly 25% of those with back pain described it as frequent, of severe intensity (≥7 on 0-10 scale), and as severely interfering with daily activities including social, recreational, family, and work activities. Conclusions: Back pain may be surprisingly common in persons with lower limb amputations, and, for some who experience it, may greatly interfere with function.