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Published on: May 8, 2014
Mobility Analysis of AmpuTees (MAAT 7): Normative Mobility Values for Lower Limb Prosthesis Users of Varying Age,
Dwiesha L England1, Taavy A Miller, Phillip M Stevens
1From the Department of Clinical and Scientific Affairs, Hanger Clinic, Austin, Texas (DLE, TAM, PMS, JHC, SRW); Department of Public Health Sciences, University of North Carolina at Charlotte, Charlotte, North Carolina (TAM); School of Medicine, University of Utah, Salt Lake City, Utah (PMS); and Department of Biomechanics, University of Nebraska at Omaha, Omaha, Nebraska (SRW).
Objective:
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.
