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A comparison of trans-tibial amputee suction and vacuum socket conditions
| Content Provider | Scilit |
|---|---|
| Author | Board, W. J. Caspers, C. |
| Copyright Year | 2001 |
| Description | Daily volume loss of the stump leads to a poor fit of the prosthetic socket. A method of preventing this volume loss and maintaining a good fit was developed. A vacuum (-78 kPa) was drawn on the expulsion port of a total surface-bearing suction socket to hold the liner tightly against the socket. Stump volume of 10 trans-tibial amputees was measured prior to and immediately after a 30 minute walk with normal and vacuum socket conditions. Under the normal condition, the limb lost an average of 6.5% of its volume during the walk. In contrast, with the liner held tightly by vacuum, the limb gained an average of 3.7% in volume. It is believed that the difference observed between conditions resulted from a greater negative pressure developed during the swing phase of gait with the vacuum condition. X-rays revealed that the limb and tibia pistoned 4mm and 7mm less, respectively, under the vacuum condition. The combination of reduced pistoning and maintenance of volume is thought to account for the more symmetrical gait observed with the vacuum. |
| Related Links | http://journals.sagepub.com/doi/pdf/10.1080/03093640108726603 |
| Ending Page | 209 |
| Page Count | 8 |
| Starting Page | 202 |
| ISSN | 03093646 |
| e-ISSN | 17461553 |
| DOI | 10.1080/03093640108726603 |
| Journal | Prosthetics and orthotics international |
| Issue Number | 3 |
| Volume Number | 25 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2001-12-01 |
| Access Restriction | Open |
| Subject Keyword | Biophysics Suction Vacuum Socket Tightly Pistoning |
| Content Type | Text |
| Resource Type | Article |
| Subject | Health Professions Rehabilitation |
