Abstract:

BACKGROUND: Prosthetic socket as the only passage to transfer load between patient affected limb and prosthesis significantly influence matching degree of the prosthesis. Three-dimensional modeling of prosthetic socket is important for socket utility to obtain accurate data.
OBJECTIVE: To establish the three-dimensional model of prosthetic socket by computer to provide data for prosthetic socket finite element analysis and provide reliable parameter for processing prosthetic socket.
METHODS: One male patient, 32 years old, undergoing below knee amputation, was selected, with normal hip muscle strength, 18° flexion contracture, and normal other joint activity. According to CT and MRI, data were processed using the Mimics10.0 software to construct three-dimensional model of the prosthetic socket and accurately simulate the residual limb and prosthetic socket structure.
RESULTS AND CONCLUSION: The three-dimensional models of the prosthetic socket and residual limb accurately displayed geometry characteristic and exterior outline. The establishment of prosthetic socket is helpful to improve manufacture success ratio, fundamentally changes the traditional manual design, measurement, sampling and repair.