Patella tendon bearing socket is used for which level of amputation?

• A. Transtibial amputation
• B. Transfemoral amputation
• C. Bilateral above-knee amputation
• D. Hemicorporectomy

Answer: (A)

Patellar tendon bearing sockets are designed to load the residual limb through the patellar tendon region, using the anterior part of the tibia as the primary weight-bearing surface. This approach works best when the amputation is below the knee, so the knee joint remains and the patellar tendon area can bear weight effectively. By distributing load away from the soft distal tissues and toward the patellar tendon area, these sockets help protect sensitive tissue, improve proprioception, and provide a stable, more comfortable fit with good suspension.

For higher-level amputations, such as transfemoral (above the knee) or bilateral above-knee, the patellar tendon area isn’t usable for weight bearing, and socket designs focus on ischial containment or other proximal load-bearing strategies. A hemicorporectomy isn’t compatible with a standard limb prosthesis design.