3-S Locking Liner Revisited...
Robert Schiff
Description
Collection
Title:
3-S Locking Liner Revisited...
Creator:
Robert Schiff
Text:
Hello all again,
I posted a question a few weeks ago regarding casting techniques for
BK 3-S Locking Liners. I was intrigued by the variety of responses that I
got and the confidence in so many different techniques. I do however have
another question regarding a particular technique. One technique brought up
was as follows:
--Put a liner and pin on the patient
--Cover with saran wrap and cast over liner(with or without stages)
--Distract the limb during casting and modify.
I will try to put my mindset with this technique into words and hopefully
someone can iron out the wrinkles for me. I don't have a problem with the
modification part but the distraction raises some questions. A limb with
redundant tissue will be used for this example. When the sleeve is rolled on
the tissue migrates distally. When the cast is setting up the distraction
causes further elongation of the limb. So now you have an elongated limb
that has been further elongated by external pulling. When donning the
prosthesis you put the liner on which elongates the tissue, but when you push
the residual limb into the prosthesis the tissue migrates proximally. This
doesn't seem to fall under the total contact rule. Sure you have total
contact in the liner but how can this possibly achieve total contact in the
socket. I am not sure if I have presented this appropriately but any
thoughts on this type of fit would be appreciated.
Robert Schiff
I posted a question a few weeks ago regarding casting techniques for
BK 3-S Locking Liners. I was intrigued by the variety of responses that I
got and the confidence in so many different techniques. I do however have
another question regarding a particular technique. One technique brought up
was as follows:
--Put a liner and pin on the patient
--Cover with saran wrap and cast over liner(with or without stages)
--Distract the limb during casting and modify.
I will try to put my mindset with this technique into words and hopefully
someone can iron out the wrinkles for me. I don't have a problem with the
modification part but the distraction raises some questions. A limb with
redundant tissue will be used for this example. When the sleeve is rolled on
the tissue migrates distally. When the cast is setting up the distraction
causes further elongation of the limb. So now you have an elongated limb
that has been further elongated by external pulling. When donning the
prosthesis you put the liner on which elongates the tissue, but when you push
the residual limb into the prosthesis the tissue migrates proximally. This
doesn't seem to fall under the total contact rule. Sure you have total
contact in the liner but how can this possibly achieve total contact in the
socket. I am not sure if I have presented this appropriately but any
thoughts on this type of fit would be appreciated.
Robert Schiff
Citation
Robert Schiff, “3-S Locking Liner Revisited...,” Digital Resource Foundation for Orthotics and Prosthetics, accessed November 1, 2024, https://library.drfop.org/items/show/217038.
