Syme’s (Symes)

Syme’s (Symes)

What is a Syme’s (Symes) prosthesis?

A Syme’s amputation is an ankle disarticulation that typically preserves the heel pad so the residual limb can take some end weight. The prosthesis must fit a bulbous distal end. Designs include a closed, stovepipe-style socket that uses the contour for suspension, or a windowed socket that is closed with straps for a slimmer ankle line. A prosthetic foot is attached under the residual heel.

Why is a Syme’s (Symes) prosthesis used?

Syme’s amputation is used for selected trauma, infection, or congenital conditions when the foot must be removed but a weight-bearing heel pad can be kept. The residual limb is shorter than the other leg once a foot is added, so a lift on the opposite shoe is often needed. Not every residual limb remains fully end-bearing; the prosthesis still shares load through the socket walls.

What are the benefits of a Syme’s (Symes) prosthesis?

• Preserves a long residual limb and, in many cases, a heel pad for partial end-bearing
• Can allow house walking with or without the prosthesis in some patients
• Energy cost of walking is generally lower than with a higher amputation
• Modern carbon feet are available at this level for selected activity