Mobility Analysis of AmpuTees (MAAT 7): Normative Mobility Values for Lower Limb Prosthesis Users of Varying Age, Etiology, and Amputation Level

The aim of the study was to establish normative values of lower limb amputation mobility across primary etiologies based on age and amputation level. DESIGN: This study is a cross-sectional observational analysis of outcomes. A total of 11,995 lower limb prosthesis users were included in the analysis. Participants were grouped by etiology into four categories: cancer, congenital, trauma, and diabetes/dysvascular. Mobility was assessed by using the Prosthetic Limb Users Survey of Mobility. RESULTS: Mobility across seven age groups for the four etiologies was established for both above-the-knee amputation and below-the-knee amputation. Differences were found between age groups for individuals: above-the-knee amputation: cancer (χ(2) (6) = 40.97, P < 0.001), congenital (χ(2) (3) = 9.41, P = 0.024), trauma (χ(2) (6) = 18.89, P = 0.004), and dysvascular (χ(2) (5) = 39.73, P < 0.001; below-the-knee amputation: cancer (χ(2) (6) = 29.77, P < 0.001), trauma (χ(2) (6) = 28.22, P < 0.001), and dysvascular (χ(2) (6) = 144.66, P < 0.001). CONCLUSIONS: The awareness of differences across amputation etiologies extending across the lifespan of ages can assist the goal-setting process as part of prosthetic rehabilitation. In addition, refined normative values provide the ability to benchmark new and innovative changes in clinical practice.