Functional effects of a prosthetic torsion adapter in trans-tibial amputees during unplanned spin and step turns.

Background: Shear stress at the stump in trans-tibial amputees induced by turning movements may be reduced with the use of torsion adapters in the prosthesis.

Objective: Monitoring the motion and kinetic effects of a regular torsion adapter in comparison to a rigid placebo in unplanned spin and step turns.

Study Design: Single-blinded placebo-controlled cohort study.