Gait-TT Flashcards
(48 cards)
What causes full knee extension?
Poor suspension
Insufficient initial socket flexion
Foot too anterior
Heel lever too short/soft
What causes excessive knee flexion?
Faulty suspension
Flexion contracture
What causes unequal stride length?
Faulty suspension
Poor gait pattern
What causes jerky knee flexion?
Weak quadriceps
What causes knee instability?
Foot too posterior Socket too flexed Shoe heel too high Foot heel too firm Shoe doesn't allow foot heel to compress completely Weak muscles
What causes Hyperextension of the knee?
Foot too anterior Insufficient initial socket flexion SACH heel too soft Heel on shoe too low Excessive use of knee extensors Changing from a Joint thigh lacer to PTB Keel or toe lever too long/firm Laxity of posterior capsule of knee or hamstrings Bad gait habit
What causes pistoning?
Poor suspension
Not enough socks
Faulty socket modifications
Socket too loose
What causes a medially leaning pylon?
Too much socket adduction
Foot too outset
What causes a laterally leaning pylon?
Too much socket abduction
Foot too inset
What causes a valgus moment at the knee?
Foot too outset
Insufficient medial displacement of foot
Inversion of foot
Poor medial collateral ligaments
What causes a varus moment at the knee?
Foot too inset
Socket ML too wide
Lateral collateral ligaments hypermoble
What causes narrow base gait?
Foot inset
What causes a wide base gait?
Foot too outset
Habit
Hip abductor weakness
Prosthesis too long
What causes lateral trunk bend?
Prosthesis too short/long
Residual limb pain
Foot too outset
What causes drop off?
Too lever to short Keel too soft Shoe heel too high Foot excessively dorsiflexed Socket too flexed
What causes “uphill walking?”
Toe lever too long
Foot too plantarflexed
What causes whips?
Cuff suspension not aligned properly
Socket externally/internally rotated
Excessive toe out
What causes the foot to touch the ground during mid-swing?
Prosthesis too long Suspension too loose Knee flexion limitation Muscle weakness Poor gait training
What are the goals for initial contact?
Knee maintained in 5-10 degrees of flexion
Stride length equal
What are the goals for loading response?
Smooth knee flexion to 20 degrees
3/8inch heel compression
No pistoning
What are the goals for midstance?
Pylon vertical
Socket displaced laterally 1/2inch
2-4inch between medial side of feet
No lateral trunk bend
What are the goals for terminal stance?
Heel off smooth
Knee begin to flex for toe off
What are the goals for pre-swing?
Smooth body weight transfer
Socket remains suspended
What are the goals for swing phase?
Foot accelerate smoothly
Foot swings through without touching ground
