transtibial prosthesis Flashcards
discuss socket
PTB
PTB-SC
PTB-SCSP
total surface bearing
hydrostatic socket
CAD system
discuss PTB
c calf suspension
can have silicon interface and pin lock as suspension
PTB-SC
most common
supracondylar design - takes more weight on patellar tendon
self suspending socket
suspends on supracondylar area; dun din trimline
PTB-SCSP
self suspending socket
encompasses supracondylar and suprapatellar gving better suspension
discuss shank
holds foot and socket in right pos
transfers WB from socket to foot
provides space for cosmesis
discuss exoskeletal shunk
only shell and inside is hollow
jaipur prosthesis
- hollow and glass reinforced plastic or aluminum
- strong and durable
- has no adjustment areas
- longer than SACH since ext sha till foot tas dun sealed
discuss endoskeletal shank
has components inside - ICRC
modern type and aesthetic
can be adjusted for tilting and shifting in gait
discuss SACH
for low activity or low K-level pt; weak pt
cheap, durable and waterproof
cannot bend and not good for pt c higher level of ambulation
single axis foot
may ankle jt inside - good knee stab
slight pflexes during heel contact = GRF ant to knee = knee ext = stab
slightly heavier
- pflex or dflex bumper
multi axis foot
more advanced - pflex, dflex, inv and evert
absrobs a lot of stress but heavier and little energy return
discuss dynamic foot
energy restoring
spring molded carbon plates
- energy respo for toe off
- less effort from pt
expensive and pt should be able to control energy
microprocessor foot
high end - hydraulic ankle or feet
uses sensors - active push off
can have malfunctions in communicating c pt
needs to be charged
heavy
not water proof
mahal
cuff suspension
for PTB socket
leather and goes around pt leg parang belt
- more suspension make it tighter
1 cm post and 1 cm proximal to middle of pat tendon and post wall to not hinder flex-ext
self suspension
PTB SC and PTB SCSP
does not need straps and is cosmetic
joint and thugh corset
old
extends distally just above pat
corset to tie = suspension
heavier and pt cant tolrate pressure on SC and SP
- pin lock n lng
not for DM - BF can be interrupted
