Prosthetics Flashcards
K0
Medicare will not pay for prosthetic
K1
Prosthetic for transfers only
K2
House hold ambulator
K3
Community ambulator
K4
Excedes normal ambulation (golfing, running, etc)
What are the biomehcnaical deficiencies seen with a partial foot amputation
Decreased push off
Impaired pronation/supination
Reduced plantar WB surface
Where do we want the majority of weight bearing to occur in a BELOW KNEE socket?
50% at patellar tendon
20% at tibial flare
30% at tissue
Where do we not want pressure to occur from a transfemoral socket
Pubic ramus
Symphasis pubis
Adductor tendon
Lateral distal femur
Where should we bear the majority of weight in a trans-femoral socket
50% on ischial tuberosity
the rest through soft tissues
Disadvantage of VASS suspension of a prosthetic
if theres a small hole in the liner you lose the suction
What kind of prosthetic foot is best for K1/ Most cost effective
SACH- solid ankle cushion heel
Just a simple rubber foot
A dynamic response prosthetic foot or a MPK are for what K levels?
K3 and K4
What are the advantages of a multi-axis prosthetic foot
Provides a softer ride, good for going up ramps
A single axis prosthetic foot works for what K levels?
2, 3
What are the advantages of an EMPOWER prosthetic foot
has a motor/battery pack
gives you energy back by pushing off ground for you
good for going up and down hill
What kind of prosthetic knee is best for K2?
Weight activated safety or 4 bar knee polycentric
What kind of knees are best for K3/K4 patients
Microprocessor or Hydraulic
advantage of a microprocessor knee?
helps stop falls and loss of balance
What are the advantages of the PLIE II knee
Fastest responding (can change walking speeds fluidly, stay in stance longer)
Water resistance
Advanced stumble recovery
Interchangable battery
Dynamic alignment of a prosthetic user should be studied at ____________
MIDSTANCE
foot flat on floo, knee slightly flexed
equal weight on both sides
Toe out should ____________ for dynamic response feet
match or be very straight
How does cosmetic covering work?
Once a pt is statisfied with the dynamic alignment of a proesthetic they send it off to have fake tissue put on
What is the disadvantage of attaching a prosthetic to an external fixator
it wont be permanent
the prosthetic will not have any knee motion
What are the advantages of stubbies (short non-articulated prostheses)
good for uneven surfaces
