Prosthetic Services Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
Gait Training
The structured therapeutic process by which a prosthetic user learns to walk safely and efficiently with their prosthetic device under the guidance of a physical therapist.
SACH Foot
Acronym for Solid Ankle Cushion Heel foot; a non-articulating prosthetic foot design that simulates ankle motion through...
Shoulder Disarticulation
An upper-extremity amputation level achieved by disarticulation at the glenohumeral joint, removing the entire arm while...
Silicone Liner
A flexible, body-conforming sleeve placed directly over the residual limb to provide cushioning, improve socket fit, and...
Socket
The custom-fitted interface between a prosthetic device and the residual limb, designed to ensure secure and comfortable...
Static Alignment
The positional relationship of prosthetic components to one another and to the body, established at the bench before any...
Stump Sock
A knitted wool, cotton, or synthetic sock worn over the residual limb or liner to manage socket volume and maintain a se...
Suspension System
The mechanism by which a prosthetic limb is held securely to the residual limb during use.
Syme Amputation
A disarticulation at the ankle joint with retention of the heel fat pad, providing a weight-bearing residual limb.
Targeted Muscle Reinnervation
A surgical procedure that redirects residual limb nerves to nearby muscles, creating additional electromyographic signal...
Terminal Device
The functional end component of an upper-limb prosthesis, such as a prosthetic hand, hook, or specialised tool.
Total Surface-Bearing Socket
A socket design in which the entire residual limb surface bears weight uniformly, rather than loading only bony prominen...
Transfemoral Amputation
Amputation performed above the knee, through the femur, removing the lower leg and knee joint.
Transfemoral Brim
The proximal edge of a transfemoral prosthetic socket, shaped to accommodate the residual limb's soft tissue and bony an...
Transfemoral Prosthesis
An above-knee prosthetic device designed for individuals whose amputation occurs at the femoral level, replacing the lim...
Transfemoral Socket
The structural interface component of an above-knee prosthesis that directly encases and contacts the residual femoral l...
Transhumeral Amputation
Amputation of the upper limb through the shaft of the humerus, resulting in a residual segment above the elbow joint.
Transmetatarsal Amputation
A partial-foot amputation in which the transection is made through the metatarsal shafts, preserving the hindfoot and a...
Transradial Amputation
An upper-limb amputation performed through or below the radius and ulna of the forearm, preserving the elbow joint.
Transtarsal Amputation
An amputation performed through the tarsal bones of the foot, preserving the heel pad and a portion of the foot.
Transtibial
Describing an amputation or prosthetic fitting at a level below the knee, through the tibia.
Transtibial Amputation
Amputation performed below the knee, preserving the knee joint; the most common level of lower-limb amputation.
Transtibial Prosthesis
A below-knee prosthetic device designed for individuals whose amputation occurs through the tibia, replacing the limb fr...
Trim Line
The cut edge of a prosthetic socket that defines the proximal or distal extent of the socket wall, determining how much...
TSB
Acronym for Total Surface Bearing, a transtibial socket design in which weight is distributed evenly across the entire r...