Amputation Of Lower Limb

The goal of this Registry is to see how the device is used when freezing nerves during an amputation procedure.

The goal of clinical trial is to assess an integrated, patient-centered strategy combining user preference-based prosthetic foot prescription and subsequent targeted physical therapy to maximize satisfaction and mobility outcomes for Veterans and others with lower limb loss. The main aims it will address are: * Assess the effect of prosthetic foot selection based on experiential preference as determined using a variable stiffness foot on mobility and satisfaction * Assess the effect of a targeted physical therapy intervention following preference-based foot selection on mobility, balance, and satisfaction? Participants will walk with an emulator prosthetic foot to experience three different conditions that emulate different commercial feet to determine their most- and least-preferred foot. Participants' satisfaction, perceived mobility, and functional mobility will be measured and compared between their most- and least-preferred feet using the corresponding commercial feet. Participants will then be randomly assigned to receive either the standard-of-care (control group) or personalized physical therapy intervention for eight weeks using that preferred prosthetic foot. Participants' satisfaction, mobility, and balance will be measured pre- and post-intervention.

This protocol outlines a study designed to investigate three different methodologies for inducing gait perturbations. Subjects will be divided into two groups: prosthetic users and able-bodied individuals. Each group will undergo a series of tests where controlled perturbations are applied using up to three methodologies with the number depending on factors such as time and fatigue. These methodologies may include mechanical, visual, or auditory perturbations designed to mimic unexpected obstacles or changes in terrain.

The LIMBER UniLeg, a 3D printed single-piece transtibial prosthetic limb, is sufficiently equivalent to traditional passive prosthetic limbs (no motors or sensors), while reducing the cost and time of manufacturing and enabling global reach through the use of digital technologies to solve the worldwide prosthetic accessibility crisis. This is a single-site, Phase I, Clinical Research Study to test the effectiveness and safety of the LIMBER UniLeg. One study group of 30 participants involved for two months using a non-inferiority design in which the participant will be assessed using their normal device (1 month) and the study device (1 month).