To prevent muscle shortening in a short residual limb post-transfemoral amputation, how should the hip be positioned?

Positioning the hip in extension with neutral rotation is important for preventing muscle shortening in a short residual limb following a transfemoral amputation. In this position, the hip's extensors, particularly the gluteus maximus, and the adductor muscles are kept in a lengthened state, which helps to minimize muscle contractures.

After amputation, the muscles surrounding the hip joint can develop tightness if not appropriately positioned. Using extension allows these muscles to maintain their length and function, while neutral rotation avoids placing additional stress on the hip joint, which could lead to further complications or discomfort.

This positioning strategy is vital during the early rehabilitation phase, as it supports optimal tissue healing and function, and sets the foundation for effective prosthetic fitting and mobility later on. Inadequate positioning, such as causing flexion or excessive rotation, can lead to contractures that may impede mobility and complicate rehabilitation efforts. Thus, maintaining the hip in extension with neutral rotation is the best approach for preventing muscle shortening and ensuring a more functional limb post-amputation.