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New plastic joints for plastic orthoses

H Watanabe, T Kutsuna, H Morinaga

    Prosthetics and Orthotics International
    |April 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

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    New plastic joints for orthoses offer advantages over traditional metal designs. These lightweight, rust-proof joints provide enhanced comfort and radiolucency for ankle, knee, elbow, and hip applications.

    Area of Science:

    • Biomaterials science
    • Orthotics and prosthetics engineering

    Background:

    • Traditional metal joints in orthoses present limitations including weight, noise, and susceptibility to corrosion.
    • The development of alternative materials for orthotic joint components is crucial for improving patient outcomes and device functionality.

    Purpose of the Study:

    • To introduce novel plastic joint designs for orthoses.
    • To evaluate the advantages of plastic over metal joint materials in orthotic applications.

    Main Methods:

    • Development of two distinct plastic joint types: one for ankle joints and another for knee, elbow, or hip joints.
    • Selection of polypropylene as the primary material due to its inherent flexibility and toughness.

    Main Results:

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  • Plastic joints demonstrate superior properties compared to metal counterparts, including being lightweight, noiseless, and comfortable.
  • The developed joints are rust-proof, corrosion-free, and radiolucent, enhancing diagnostic imaging compatibility.

    • Conclusions:

    • Plastic joints represent a viable and advantageous alternative to traditional metal joints in orthotic devices.
    • Polypropylene offers a suitable material profile for the fabrication of durable and functional orthotic joints.