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The SÖderberg Socket 2.0: A Technical Note.

B Söderberg1, G Guerra2, T Fagerstrom1

  • 1Centre of Excellence for Prosthetics and Orthotics, Scandinavian Orthopaedic Laboratory, Bangkok, Thailand.

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|August 24, 2023
PubMed
Summary
This summary is machine-generated.

This study presents a new transtibial prosthesis socket fabrication method using Pre-preg carbon fiber and Ethylene-Vinyl-Acetate (EVA). The improved socket design enhances patient comfort and mobility, particularly for activities like squatting and cycling.

Keywords:
AmputationProsthesisProsthetic suspensionTranstibial AmputeesTranstibial socket

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Area of Science:

  • Prosthetics and Orthotics
  • Biomedical Engineering

Background:

  • Transtibial prosthesis socket trim lines have historically remained consistent, often relying on supracondylar cuff suspension.
  • Vacuum suspension methods offer potential for modifying traditional socket trim lines.

Purpose of the Study:

  • To provide a step-by-step fabrication guide for an improved transtibial prosthesis socket.
  • To inform prosthetic practitioners on advanced socket fabrication techniques.

Main Methods:

  • Fabrication of a vacuum socket for a unilateral transtibial amputee.
  • Utilized Pre-preg carbon fiber with an anti-bacterial Ethylene-Vinyl-Acetate (EVA) flexible proximal brim.

Main Results:

  • The combination of Pre-preg carbon fiber and EVA enabled a socket with a flexible proximal brim.
  • The new socket design led to improved patient comfort and an increased range of motion.
  • The patient reported enhanced squatting and cycling capabilities.

Conclusions:

  • A novel transtibial socket fabrication guide and preliminary patient feedback were presented.
  • Further clinical studies are recommended to evaluate the functional and biomechanical impacts of this new socket design.