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Gerschutz488 JRRD Slideshow Project

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Tensile strength and impact resistance properties of materials used in prosthetic check sockets, copolymer sockets, and definitive laminated sockets

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Gerschutz488 JRRD Slideshow Project

  1. 1. Tensile strength and impact resistance properties of materials used in prosthetic check sockets, copolymer sockets, and definitive laminated sockets Maria J. Gerschutz, PhD; Michael L. Haynes, MS; Derek M. Nixon, BS; James M. Colvin, MS
  2. 2. <ul><li>Study Aim </li></ul><ul><ul><li>Evaluate tensile and impact properties of latest materials used to fabricate prosthetic check, copolymer, and definitive laminated sockets. </li></ul></ul><ul><li>Relevance </li></ul><ul><ul><li>Although most prosthetic socket materials have been used for years, few are backed up by objective evaluations. </li></ul></ul><ul><ul><li>Without knowledge of basic properties, trying new methods/materials risks violating long-forgotten lessons and patient safety. </li></ul></ul>
  3. 3. Comparisons Analyzed
  4. 4. Selected Results Raw specimens and fabricated specimens significantly differed for all prosthetic socket materials. PETG = polyethylene terephthalate glycol. Thermoplastic tensile strength Copolymer: Impact resistance at 25.5 °C not reported because of incomplete breaks, suggesting influence of temperature. Check socket materials: Only PETG was significantly affected by temperature. Thermoplastic impact resistance
  5. 5. Conclusions <ul><li>Material properties determined in this study provide a foundation for understanding and improving quality of prosthetic sockets using current fabrication materials and a basis for evaluating future technologies. </li></ul>

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