938461PK2/2-0822
10
9
Casting/Scanning a Cushion Liner
Before you begin
Allow the user to wear the device for 10
minutes.
(See Section 11
.)
If a scanning method is used
To reduce the amount of distal pressure within the final socket, the model should be lengthened
by 10-12
mm (depending upon redundant tissue etc.).
If a casting method is used
We recommend using a casting method that accentuates weight bearing areas such as the
medial condylar flare and displaces redundant tissue distally; otherwise excessive distal contact
may result in the final socket, giving rise to oedematous swellings corresponding to the distal
perforations as shown below.
Additionally, when fabricating a diagnostic socket, we recommend a 5
mm pelite spacer is used
to further extend/lengthen the socket. When you are satisfied with the fit of the socket (by
adding any necessary socks) the spacer can, if necessary, be removed if excess distal contact
gives rise to distal oedematous swellings.
The softness of the silicone can mask the amount of distal contact that is occurring, this
will only be evident when oedematous swellings are observed.
The use of a diagnostic socket is strongly recommended to assess the amount of distal
pressure/contact that is occurring.
Oedematous
Swellings
Residual Limb
Distal End Surface
Distal End of Liner
(Inside view)
Oedematous
Swellings
Содержание SBWTTCP22
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