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Related Experiment Videos

Sand-casting technique for trans-tibial prostheses.

J Steen Jensen1, P A Poetsma, N H Thanh

  • 1ISPO, Copenhagen, Denmark. steen@ispo.ws

Prosthetics and Orthotics International
|November 12, 2005
PubMed
Summary

A novel sand-casting technique improved trans-tibial prosthetic socket fit in amputees. This method offers a more consistent and even fit compared to traditional plaster casting methods.

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Area of Science:

  • Prosthetics and Orthotics
  • Biomedical Engineering
  • Rehabilitation Medicine

Background:

  • Traditional plaster of Paris casting for trans-tibial prosthetics can be labor-intensive and may result in suboptimal fit.
  • Achieving a precise and comfortable prosthetic socket fit is crucial for amputee mobility and well-being.

Purpose of the Study:

  • To evaluate the efficacy of a sand-casting technique for creating trans-tibial prosthetic sockets.
  • To compare the fit achieved with sand-casting against historical data from plaster of Paris casting.

Main Methods:

  • A sand-casting technique was employed to fabricate sockets for 28 trans-tibial amputees.
  • Transparent check sockets were used to assess the prosthetic fit.
  • The fit was evaluated based on consistency, evenness, and total contact achieved with stump socks.

Main Results:

  • The sand-casting technique yielded superior prosthetic fit results compared to historical plaster casting methods.
  • Fittings were consistently and evenly larger than the residual limb (stump).
  • Total contact was achievable with the application of stump socks, indicating a good overall fit.

Conclusions:

  • Sand-casting presents a viable and effective alternative for trans-tibial prosthetic socket fabrication.
  • This technique offers improved fit consistency and total contact, potentially enhancing prosthetic comfort and function for amputees.

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