Prosthetics Flashcards
How much does the typical transtibial prosthesis cost?
$7,000 - $14,000
What is the purpose of post op care?
- facilitate healing
- reduce edema
- prevent contractures
What is the purpose of the preparatory prosthesis?
- early ambulation
- shape the residual limb
- cost effective
How long does the residual limb take to heal?
6-8 weeks
How long does the preparatory prosthesis tend to last?
4-6 months until pt has constant volume
What are the advantages of endoskeletal? exoskeletal?
endo: cosmesis, alignable, good selection
exo: durable, light weight, cost effective
What are knee joint/thigh lacers used?
poor stability, small residual limbs, severe scar breakdown
Where is the most common place for a sore to develop on a transtibial (BK) amputee?
what can cause this?
anterior-distal tibia
heel too high, foot too posterior, too much socket flexion, heel too stiff, posterior shelf too low
What are the stages of design for a prosthesis?
- Patient eval
- Impression technique
- Positive model modification
- Socket fabrication
- Alignment (bench, static, dynamic)
What are the most common components to begin with in a transtibial amputee?
SACH foot, endo pylon, PTB socket with pelite insert, suspension sleeve
What are the pressure tolerant areas on a BK amputee?
patella tendon, medial tibial flare, medial tibia, pre-tibial muscle, shaft of fibula, gastroc
What are the pressure sensitive areas on a BK amputee?
tibial tubercle, tibial crest, anterior-distal tibia, fibula head, peroneal nerve, distal fibula, hamstring tendons
What are the components of saggittal plane alignment?
A-P placement or TKA
Flexion of socket
What are the components of coronal plane alignment?
Height (patella tendon to floor)
M-L placement of foot
Adduction angle of socket (5-7 degrees)
What are the components of transverse plane alignment?
socket rotation foot rotation (5-7 degress toe out)
