پروتز زیر زانو (ترانس‌تیبیال)

Because the knee is preserved, transtibial amputees usually recover gait quickly and spend far less energy than transfemoral users. The key is a total-contact socket that loads pressure-tolerant areas and relieves sensitive ones.

A silicone or gel liner encloses the residual limb to cushion it, reduce shear and stabilise volume. Suspension can be a locking pin, a vacuum valve or a supracondylar grip depending on limb length and activity level.

The foot is chosen by goal: SACH and single-axis for slower indoor walking; multi-axis for rough ground; an energy-returning carbon foot for active users; and dedicated modules for swimming or running.

We finish with dynamic alignment and residual-limb skin-care coaching. Limb volume keeps changing for the first 6–12 months, so patients return for sock management or a replacement socket when needed.