I would appreciate hearing viewpoints and experience on the use of gel
liners and pin locks for preparatory BK prostheses, as well as preparatory
AK prostheses, particularly from those CP’s who have had experience with
both the more traditional Pelite liner/sock/suspension sleeve BK
preparatory as well as the gel liner with pin lock (and sock with Tess belt
for AK’s). Given that volumes can change dramatically, and the gel liners
are expensive, one might think that traditional methods may be more cost
effective and easier to work with (in terms of maintaining socket fit and
comfort) during the time between the preparatory and the
definitive. However, the liner and pin lock is easier to fit initially,
model modification takes less time, and the system usually makes it easier
for the patient to don – there is less to have to plan, manipulate, and
position correctly. But as the limb shrinks, a point may be reached where
the liner no longer fits properly, even though socks can be applied over
the liner to replace volume. I would like to know if any of those who have
tried gel liners and pin locks for preparatory prostheses have switched
back to more traditional methods, or have developed a list of
contra-indications for use of gel liners and pins on preparatory
prostheses. Similarly, I would like to hear from those who are so pleased
with the results with gel liners and pins that they would rarely consider
going back to more traditional socket designs except as a last resort.
Last, I would like to hear from those who would never consider using a gel
liner and pin lock on a preparatory, and your reasons. I am particularly
interested in experience with geriatric patients who have diabetes or
vascular problems. Thanks to all who respond!
Ed Neumann, PhD, PE, CP
Edward S. Neumann, PhD, PE, CP
Professor of Civil and Environmental Engineering
Box 454015
University of Nevada, Las Vegas
Las Vegas, NV 89154-4015
PH: 702 895 1072
FAX 702 895 3936
