Transfemoral Suspension
The method by which an above-knee prosthetic socket is secured to the residual limb, encompassing suction, locking liners, belts, and elevated vacuum mechanisms.
Full Definition
Transfemoral suspension refers to the collective strategies used to maintain intimate contact and prevent pistoning between a transfemoral prosthetic socket and the user's residual limb. Common methods include suction suspension (relying on negative pressure within the socket), pin-lock liners, lanyard systems, and elevated vacuum suspension. The choice of suspension method directly affects proprioceptive feedback, skin integrity, and overall prosthetic function. Editors must distinguish this term from the suspension system itself, which is the hardware assembly, versus the broader concept of suspension as a clinical strategy. Documentation in clinical notes and DME orders must specify the suspension modality precisely to support insurance reimbursement.
Usage
Usage note: Do not conflate with 'suspension system,' which refers to the physical hardware; 'transfemoral suspension' encompasses both the strategy and the components.