Transtibial and Transfemoral Gait Deviations Flashcards
TRANSTIBIAL GAIT DEVIATIONS
TRANSTIBIAL GAIT DEVIATIONS
What is the goal with transtibial prosthetic gait?
Gait that is as close to normal as possible.
Normal gait is a function of what things in TT?
- Socket fit
- Prosthetic alignment (between foot and socket in transtibial)
- Components used
- User ability
Phases of gait an what we are looking for in each phase.
IC/LR
- stride length
- controlled knee flexion
MSt
- pylon position
- step width
TSt
- smooth progression over the foot
- smooth flexion of the limb
PSw
-pelvic, trunk, and head position
Swing Phase
-prosthetic path
List the TT Gait Deviations.
- Excessive Knee Extension
- Knee Instability
- Hip Drop
- Lateral Thrust
- Wide Based Gait
- Drop-Off
- Vaulting
- Pistoning
- Uneven Step Length
- Circumduction
Excessive Knee Extension is seen in what phase(s) of gait?
IC → MSt
sagittal
What are some prosthetic causes of Excessive Knee Extension?
- Socket aligned too far posterior/foot aligned too far anterior.
- Heel too soft.
- Insufficient socket flexion.
What are patient causes of Excessive Knee Extension?
- Weak musculature around knee.
- Locking knee to prevent fall.
Patients with Excessive Knee Extension may develop skin breakdown where?
Anterior distal tibia from extending excessively into the socket. (Bell clapping)
Knee Instability is seen in what phase(s) of gait?
IC → LR
sagittal
What are some prosthetic causes of Knee Instability?
- Socket aligned too far anterior/foot aligned too far posterior.
- Heel too firm.
- Excessive foot DF.
What are some patient causes of Knee Instability?
- Weak quads.
- Knee flexion contracture.
- Patients with Knee Instability will report feeling unstable and having excessive pressure where?
- These patients may also present with a shortened stance phase on the _________ side.
- distal residual limb
- prosthetic
Hip Drop is seen in what phase(s) of gait?
MSt
frontal
With Hip Drop, we see a pelvic drop toward the ________ side during MSt.
prosthetic
What are some prosthetic causes of Hip Drop?
Prosthesis too short.
What are some patient causes of Hip Drop?
Residual limb pain.
Lateral Thrust is seen in what phase(s) of gait?
MSt
frontal
A narrow BOS with lateral thrust of the socket durinig MSt creates excessive ______ at the knee.
Varus
What are some prosthetic causes of Lateral Thrust?
- Foot too far inset.
- Laterally leaning pylon.
What are some patient causes of Lateral Thrust?
- Glute med weakness.
- Knee ligament insufficiency.
Patients with Lateral Thrust will complain about increased __________ and ____________ residual limb pain and pressure leading to breakdown.
- proximal medial
- distal lateral
Wide Based Gait is seen in what phase(s) of gait?
MSt
frontal
With a Wide Based Gait, we see an increase in ______.
BOS
What are some prosthetic causes of Wide Based Gait?
- Outset foot.
- Medial leaning pylon.
What are some patient causes of Wide Based Gait?
- Insufficient weight shift over prosthesis.
- Hip abduction tightness.
- Patient fear.
Drop-Off/Knee Instability is seen in what phase(s) of gait?
TSt
sagittal
Drop-Off involves early and excessive knee ______ durinig TSt.
flexion
What are some prosthetic causes of Drop-Off?
- Socket aligned too far anterior/foot too far posterior.
- Inappropriate foot choice.
What are some patient causes of Drop-Off?
Knee flexion contractures (results in early and excessive knee flexion).
Vaulting is seen in what phase(s) of gait?
SW
frontal
Vaulting is excessive ___ of sound limb during MSt to clear prosthetic foot.
PF
What are some prosthetic causes of Vaulting?
- Prosthesis too long.
- Long toe lever arm.
- Socket too far posterior.
What are some patient causes of Vaulting?
Holding knee in extension for too long.
Patients with Vaulting will often complain of _______ in the sound limb.
fatigue
Pistoning is seen in what phase(s) of gait?
SW, IC → MSt
sagittal
Pistoning involves a loss of __________.
suspension
What are some prosthetic causes of Pistoning?
- Sockets too large.
- Not enough socks.
What are some patient causes of Pistoning?
- Volume changes.
- Not enough socks.
Pistoning is a ____ risk and usually results in a _____ step with the prosthesis.
- fall
- short
With Pistoning, where will we have residual limb pain?
-distal residual limb
Uneven Step Length is seen in what phase(s) of gait?
SW
sagittal
An Uneven Step Length involves taking a long step with the ________ limb, step-to pattern with the ______ limb.
- prosthetic
- sound
What are some prosthetic causes of Uneven Step Length?
n/a
What are some patient causes of Uneven Step Length?
- Insufficient gait training.
- Decreased patient confidence.
Circumduction is seen in what phase(s) of gait?
SW
frontal
With Circumduction the patient swings the leg around in an ________ position to advance it forward.
abducted
What are some prosthetic causes of Circumduction?
- Poor suspension.
- Prosthesis too long.
What are some patient causes of Circumduction?
- Feeling of instability.
- Decreased knee flexion during swing phase.
Do TT or TF present with circumduction more?
TF
TT Gait Deviations Main Takeaways:
- Any gait deviation is going to have an impact on gait efficiency and work.
- Analyze gait from multiple viewpoints to catch deviations.
- Patients may have a ___________ of deviations.
- Recognize when a deviation is out of your control and _____ appropriately.
- Treat __________ when possible.
- combination
- refer
- impairments
TRANSFEMORAL GAIT DEVIATIONS
TRANSFEMORAL GAIT DEVIATIONS
In TF amputations we see an overall decrease in gait speed to around __% normal.
40%
Normal gait is a function of what things in TF?
- Socket fit
- Prosthetic alignment (between socket, knee, and foot in transfemoral)
- Components used
- User ability
Phases of gait an what we are looking for in each phase.
IC/LR
- stride length
- gait cycle
- knee joint stability
MSt
- weight shift over prosthetic
- braking to propulsion
- pylon position
TSt
- SLS time
- progression
PSw
- heel rise
- adequate suspension
Swing Phase
-velocity
Terminal Impact is seen in what phase(s) of gait?
SW → IC
sagittal
Terminal Impact involves forceful and excessive knee __________ that is usually _________.
- extension
- audible
What are some prosthetic causes of Terminal Impact?
Inadequate knee friction.
What are some patient causes of Terminal Impact?
- Fear of knee giving way.
- Forceful hip extension.
Terminal Impact involves a ________ of the knee into extension. This gait deviation impacts _______ absorption.
- snapping
- shock
Foot Slap is seen in what phase(s) of gait?
IC → LR
sagittal
Foot Slap is accelerated ___ at heel strike resulting in the foot getting flat to the floor too soon.
PF
What are some prosthetic causes of Foot Slap?
-PF bumper too soft.
What are some patient causes of Foot Slap?
-Increased hip extension force at IC.
Knee Instability is seen in what phase(s) of gait?
IC → LR
sagittal
Knee Instability involves giving way in early ________ phase.
stance
What are some prosthetic causes of Knee Instability?
- Knee axis too far supereior.
- Socket too far posterior.
- Lack of socket flexion.
What are some patient causes of Knee Instability?
- Inadequate hip extension strength/ROM.
- Hip flexion contracture.
Knee Instability is relatively rare in ___________ knees.
microprocessor
Lateral Trunk Bend is seen in what phase(s) of gait?
MSt
frontal
Lateral Trunk Bend involves excessive lateral lean over the hip during _____ phase.
stance
What are some prosthetic causes of Lateral Trunk Bend?
- Socket too abducted.
- Prosthesis too short.
- Medial socket wall too high.
What are some patient causes of Lateral Trunk Bend?
- Pain.
- Glute med weakness.
- Decreased balance.
- Adductor roll.
If a patient is ambulating with Lateral Trunk Bend, there is likely a decrease in contact with the _______ wall of the socket which decreases the ability of the glute med to stabilize the pelvis. Patients may complain of _____________ residual limb pain.
- lateral
- distal lateral
Lateral Trunk Bend is essentially a __________ __________ pattern.
Compensated Trendelenburg
Abducted Gait is seen in what phase(s) of gait?
MSt
frontal
Abducted Gait involves excessive _____ abduction during stance leading to a wide based gait pattern.
hip
What are some prosthetic causes of Abducted Gait?
- Foot/leg too far outset.
- Prosthesis too long.
- Medial socket wall too high.
- Lateral wall not adducted enough.
What are some patient causes of Abducted Gait?
- Abduction contracture.
- Lateral-distal RL pain.
- Decreased balance/trying to increase BOS.
- Adductor roll.
Excessive Trunk Extension is seen in what phase(s) of gait?
MSt
sagittal
With Excessive Trunk Extension we see excessive lumbar _________ during stance or a posterior trunk lean.
lordosis
What are some prosthetic causes of Excessive Trunk Extension?
- Increased socket extension.
- Not enough flexion built into socket.
What are some patient causes of Excessive Trunk Extension?
- Weak hip extensors.
- Weak abdominals.
- Hip flexion contracture.
- Very short RL.
Drop-Off is seen in what phase(s) of gait?
TSt
sagittal
Drop-Off involves sudden and excessive knee ________ during late stance phase.
flexion
What are some prosthetic causes of Drop-Off?
- Short toe lever.
- Socket set too posterior to knee axis.
What are some patient causes of Drop-Off?
n/a
Excessive Heel Raise is seen in what phase(s) of gait?
PSw → SW
sagittal
Excessive Heel Raise involves the prosthetic heel rising excessively (both in _________ and _________).
distance and velocity
What are some prosthetic causes of Excessive Heel Raise?
-Insufficient knee friction.
What are some patient causes of Excessive Heel Raise?
-Forceful hip flexion.
Circumduction is seen in what phase(s) of gait?
SW
frontal
With Circumduction the user swings the leg in a circular motion laterally to advance it during _______ phase.
swing
What are some prosthetic causes of Circumduction?
- Prosthesis too long.
- Inadequate suspension.
- Excessive knee friction.
- Medial wall too high.
What are some patient causes of Circumduction?
- Hip flexor weakness.
- Hip abduction contracture.
- Fear.
Vaulting is seen in what phase(s) of gait?
SW
frontal
Vaulting involves excessive ____ of the sound limb to clear the prosthetic limb.
PF
What are some prosthetic causes of Vaulting?
- Prosthesis too long.
- Inadequate suspension.
- Excessive knee friction.
What are some patient causes of Vaulting?
- Hip flexor weakness.
- Fear.
Medial Whip is seen in what phase(s) of gait?
SW
frontal/transverse
Medial Whip involves a medially directed whipping motion of the __________.
prosthesis
What are some prosthetic causes of Medial Whip?
- External rotation of knee component.
- Improper alignment of knee bolt.
What are some patient causes of Medial Whip?
-Improper donning.
Medial Whip is named after the position of the _______ and the ______.
pylon and the foot
Lateral Whip is seen in what phase(s) of gait?
SW
Lateral Whip involves a laterally directed whipping motion of the __________.
prosthesis
What are some prosthetic causes of Lateral Whip?
- Internal rotation of knee component.
- Improper alignment of knee bolt.
What are some patient causes of Lateral Whip?
-Improper donning.
Lateral Whip is named after the position of the _______ and the ______.
pylon and foot
TF Gait Deviations Main Takeaways:
- Any gait deviation is going to have an impact on gait efficiency and work.
- Increased number of components = increased likelihood of ________.
- Analyze gait from multiple viewpoints to catch deviations.
- Patients may have a ___________ of deviations.
- Recognize when a deviation is out of your control and _______ appropriately.
- Treat __________ when possible.
- deviations
- combination
- refer
- impairments