Lower Limb Prosthetics Flashcards
1
Q
leading causes of lower extremity amputations
A
- peripheral vascular disease: infection, foot ulcer
- diabetics: infection, foot ulcer
- trauma
- tumor/cancer: osteosarcoma
- congenial deficiency
2
Q
amputation levels
A
- transtibial: below the knee (BK)
- transfemoral: above the knee (AK)
- hip, knee, or ankle disarticulation
- partial foot, or toe
3
Q
components of a lower limb prosthesis
A
- suspension
- socket design
- alignment
- pylon
- prosthetic knees
- prosthetic feet
4
Q
lower limb prosthetic fitting process
A
- assess individual needs
- cast/scan of the limb for model
- check the socket made from the model
- definitive prosthesis
5
Q
socket suspension and fit
A
- stump socks
- vacuum
- more constant socket pressure
- high fidelity socket (biodesigns)
6
Q
recent innovations
A
- bluetooth technology
- microprocessor knees
- prosthetic materials
- osseointegration
- CAD/CAM technology
7
Q
modern prosthetic materials
A
- plastic polymer laminates (thermosets)
- carbon fiber
- titanium
8
Q
bluetooth technology
A
sensors on the sound limb can help control the prosthetic device
9
Q
microprocessor knees
A
use sensors (force, accelerator gyroscope) and a microprocessor (onboard computer) to adjust the knee
10
Q
intergrates titanium implants- medullary cavity of the bone
A
osseointegration
11
Q
benefits of osseointegration
A
- extend from the bone through the skin to create an anchor for prosthesis
- bypasses skin contact with skin
- improved perception of prosthesis
12
Q
risks of osseointegration
A
- remove barrier function of skin
- may lead to infection and metal corrosion
- more surgery
13
Q
What does CAD/CAM stand for?
A
CAD - computer-aided design
CAM - computer-aided manufacturing
14
Q
tools to evaluate K-levels
A
- amputee mobility predictor (AMP)
- patient assessment validation evaluation test (PAVET)
- prosthesis evaluation questionnaire (PEQ)
- timed up and go (TUG)
- timed walk test
- distance walk test
15
Q
Biomechanics testing examples
A
- CAREN system
- research with wounded warriors
- Genium vs C-leg knees
