An Automatically Adjusting Prosthetic Socket for People With Transtibial Amputation

This study tests an automatically adjusting prosthetic socket for people who have had a below-the-knee (transtibial) amputation. Residual limb volume can change throughout the day, causing discomfort or poor fit. The new socket adjusts automatically to maintain a comfortable fit. The study involves both prosthetists evaluating the device and amputee participants wearing it. You may be eligible if... - You are 18 years or older - For amputees: you had a transtibial amputation at least 12 months ago and regularly use a prosthesis with pin-lock suspension - You have experienced limb volume fluctuation in the past - Your residual limb is at least 9 cm long - You can walk continuously for at least 5 minutes You may NOT be eligible if... - You have neuropathy or reduced skin sensation in your residual limb - You regularly use an assisted walking device - You have sores or skin breakdown on your residual limb Talk to your doctor to see if this trial is right for you.