L5:TFA_TTA Gait Training Part 2: Deviations and Causes*** Flashcards
WRITE ALL OF THIS!!!
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ALL CARDS PRESENTED AS FOLLOWS:
TALKING ABOUT SPECIFIC DEVIATIONS IN GAIT @ SPECIFIC TIMES IN GAIT CYCLE
Type of prosth:
Phase of gait:
Deviation:
Intrinsic (w/in body) vs. Extrinsic (prosth. or environment)
Type of prosth: TTA
Phase of gait: IC→MSt
Deviation: EXCESSIVE KNEE FLEXION
INSTRINSIC
- Knee flex contracture
- Hip flex contracture
- Hip and/or knee strength or timing deficits
Type of prosth: TTA
Phase of gait: IC→MSt
Deviation: EXCESSIVE KNEE FLEXION
EXTRINSIC
- Excessive DF of foot (remember prosth foot!)
- Excessive socket flexion (ant. tilt)
- aka have to flex knee more to fit in socket
- Socket anterior to foot
- Excessive heel cushion stiffness (SACH)
- durometer mods this
- too stiff→ pylon follows= knee flexion
- Prosth too long
- Walking downhill (environ.)
Type of prosth: TTA
Phase of gait: IC→MSt
Deviation: KNEE HYPEREXTENSION
INSTRINSIC
- Cruciate lig insuff.
- Quad weakness
- Distal RL pain
- Excessive popliteal tissue
*see video slide 63
Type of prosth: TTA
Phase of gait: IC→MSt
Deviation: KNEE HYPEREXTENSION
EXTRINSIC
- Excessive PF of foot
- PF assocd w/ knee EXT ***
- Excessive socket EXT (posterior tilt)
- Ext knee more to put in socket
- Excessively soft heel cushion (SACH) (opp of excess. knee flex)
- BW shifts over too quickly
- Prosth TOO SHORT
- Inadeq. cuff suspension
- Walking uphill (environ.)
Type of prosth: TFA
Phase of gait: IC→ MSt
Deviation: KNEE INSTABILITY
INTRINSIC
- SIGNIFICANT hip flexion contracture (>25-30degs)
- Weakness of hip EXTs
- forces more knee flexion
Type of prosth: TFA
Phase of gait: IC→ MSt
Deviation: KNEE INSTABILITY
EXTRINSIC
- Prosthetic Knee axis (TKA) aligned too far anterior to the wt line→ GRF/ext moment line***
- Socket may not have been preflexed→ decd biomech. adv of hip EXTs
- Excessive DF of prosth. foot → TTA as well
- SACH heel of PF bumper (PF– Posterior) too stiff→ TTA as well
- wont allow PF
Type of prosth: TFA or TTA
Phase of gait: IC→ MSt
Deviation: FOOT SLAP
INTRINSIC
- NONE → no mm’s
Type of prosth: TFA or TTA
Phase of gait: IC→ MSt
Deviation: FOOT SLAP
EXTRINSIC
- Heel cushion too soft (exactly what it sounds like)
- PF bumper (posterior) too soft/worn
Type of prosth: TFA or TTA
Phase of gait: IC→ MSt
Deviation: EXTERNAL ROTATION OF PROSTH. FOOT
INTRINSIC
- Tight hip ERs
- Weak hip mm’s
- Fear of knee instab. extending knee too vigorously, ER to compensate
- Shoe too tight on prosth.—– NOT ON TEST
*SEE VIDEO SLIDE 66
Type of prosth: TFA or TTA
Phase of gait: IC→ MSt
Deviation: EXTERNAL ROTATION OF PROSTH. FOOT
EXTRINSIC
- Excessively firm heel cushion
- PF bumper (posterior) too firm
- Poor fit in socket allowing rotation→ fluctuating edema
Type of prosth: TTA
Phase of gait: Midstance→ (SLS, glutes, ABDs)
Frontal plane
Deviation: VALGUS MOMENT @ KNEE
INTRINSIC
- Collateral lig insuff. @ knee
- Medial distal RL pain
Type of prosth: TTA
Phase of gait: Midstance (SLS, glutes, ABDs)
Frontal plane
Deviation: VALGUS MOMENT @ KNEE
EXTRINSIC
- Excessive outset of foot (you’ll see this in another deck)
- Inadeq. socket fit or suspension
- Walking on uneven surfaces (environ.)
Type of prosth: TTA
Phase of gait: Midstance (SLS, glutes, ABDs)
Frontal plane
Deviation: VARUS MOMENT @ KNEE
INTRINSIC
- Collateral lig insuff @ knee
- Lateral distal RL pain
- Weakness of hip ABDs ***
Type of prosth: TTA
Phase of gait: Midstance (SLS, glutes, ABDs)
Frontal Plane
Deviation: VALGUS MOMENT @ KNEE
EXTRINSIC
- Excessive inset (you’ll see this in other deck) of foot
- Inadeq. socket fit or susp.
- Walking uneven surfs (environ.)
Type of prosth: TTA
Phase of gait: Midstance to Late Stance
Deviation: DROP-OFF (PREMATURE ROLLOVER)→ earlier knee flex/excessive but @ diff stage
INTRINSIC
- Hip and/or knee flexion contracture
- Weak hip EXTs
- Anterior distal RL pain
- Timing of rollover is off (too early)
- should occur bw TSt and PSw→ instead occurring bw MSt and TSt
*see video slide 69
Type of prosth: TTA
Phase of gait: Midstance to Late Stance
Deviation: DROP-OFF (PREMATURE ROLLOVER)→ earlier knee flex/excessive but @ diff stage
EXTRINSIC
- Poor prosth. foot alignment, too much DF
- Ecc, excessive DF assocd w/ flexion
- DF bumper (anterior) too soft or worn out
- Heel cushion too soft (SACH)
- Keel too short***
- Socket too far anterior
- Walking downhill (environ.)
Excessive DF assocd w/——
Excessive PF assocd w/——-
Excess DF== knee flexion
Excess PF== knee EXT
Type of prosth: TTA
Phase of gait: Midstance
Deviation: INSUFFICIENT WB
INTRINSIC
- RL pain OR hypersensitivity
- Excess. UE reliance on AD
- Knee jt instab.
- Decd strength
- FOF/decd confidence
Type of prosth: TTA
Phase of gait: Midstance
Deviation: INSUFFICIENT WB
EXTRINSIC
- Prosth. too long
- Poor socket fit→ discomf.
- Walking on rugged terrain (environ.)
- Walking uphill (environ.)
Type of prosth: TTA
Phase of gait: Midstance→ Preswing
Deviation: DELAYED KNEE FLEXION
INTRINSIC
- Posterior/distal RL pain
- Pt locking knee due to knee instab.
Type of prosth: TTA
Phase of gait: Midstance → Preswing
Deviation: DELAYED KNEE FLEXION
EXTRINSIC
- Excessive PF of foot
- remember: excess PF coupled w/ more EXT, so this == delayed knee flexion!! make the connection!!!
- Socket pos’d post. to foot
- Excessively long keel of foot
- Walking uphill
Type of prosth: TFA
Phase of gait: Midstance to Late Stance
Deviation: LATERAL TRUNK BENDING (TOWARDS PROSTH. SIDE)
INTRINSIC
- Short RLs: diff to make socket w/ adeq. lateral stability
- Groin/ADD discomf., pinching
**see video slide 72
Type of prosth: TFA
Phase of gait: Midstance to Late Stance
Deviation: LATERAL TRUNK BENDING (TOWARDS PROSTH. SIDE)
EXTRINSIC
- Initial socket set in too much ABD
- RL too deep in socket/socks
- Prosth. foot excessively outset
Type of prosth: TFA
Phase of gait: Stance
Deviation: ABDUCTED GAIT PATTERN (only a stance phase thing)
INTRINSIC
- Pain in groin/pinching
- Decd pelvic stab/weak ABDs
- Lateral distal RL pain
- FOF/Wide BOS
**see video slide 73
Type of prosth: TFA
Phase of gait: Stance
Deviation: ABDUCTED GAIT PATTERN (only a stance phase thing)
EXTRINSIC
- Prosth. too long
- Socket aligned in excessive ABD
- Medial wall too high
Type of prosth: TFA
Phase of gait: Stance
Deviation: UNEVEN STEP LENGTH
INTRINSIC
- Pain anywhere in RL
- Hip flex contracture→ limits hip EXT in late stance
- FOF
**see video slide 74
Type of prosth: TFA
Phase of gait: Stance
Deviation: UNEVEN STEP LENGTH
EXTRINSIC
Mechanical knee instab.
Type of prosth: TTA
Phase of gait: Swing
Deviation: INADEQUATE CLEARANCE OF FOOT
INTRINSIC
- Decd knee or hip ROM
- Decd hip or knee strength or motor control
- FOF/decd confidence
Type of prosth: TTA
Phase of gait: Swing
Deviation: INADEQUATE CLEARANCE OF FOOT
EXTRINSIC
- Prosth too long
- Excess PF of prosth foot== EXT
- Walking uneven surfs.
Type of prosth: TFA
Phase of gait: Swing
Deviation: EXCESSIVE LUMBAR LORDOSIS
INTRINSIC
- Sig hip flexion contracture
- so they use lordosis to kickstart motion to swing LE
- Core and hip (flexion) weakness
- Short RL/ineffective lever
Type of prosth: TFA
Phase of gait: Swing
Deviation: EXCESSIVE LUMBAR LORDOSIS
EXTRINSIC
- Insuff. socket pre-flexion
Type of prosth: TFA
Phase of gait: Right BEFORE Swing→ more like TSt→PSw
Deviation: MEDIAL AND LATERAL WHIPS OF HEEL
*COMMON
*REMEMBER FERRARO DOING IT
INTRINSIC
- Lateral→ when donning, RL internally rotated in socket
- Medial→ “ ” externally rotated in socket
- DECd ROM @ hip rotators
Type of prosth: TFA
Phase of gait: Right BEFORE Swing→ more like TSt→PSw
Deviation: MEDIAL AND LATERAL WHIPS OF HEEL
*COMMON
*REMEMBER FERRARO DOING IT
EXTRINSIC
- Lateral whip→ knee positioned in too much IR
- Medial whip→ knee pos’d in too much ER
- Medial whip→ Silesian/TES belt too tight=pulls socket into ER
Type of prosth: TFA
Phase of gait: Swing
Deviation: VAULTING/CIRCUMDUCTION/HIP HIKING
INTRINSIC
- Anxiety about catching toes during swing (poor clear)
- Anticipated anxiety about knee instab during upcoming stance
*see video slide 78
Type of prosth: TFA
Phase of gait: Swing
Deviation: VAULTING/CIRCUMDUCTION/HIP HIKING
EXTRINSIC
- Insuff. suspension/pistoning
- Too much knee resist.
- Foot set in excessive PF
- Locked knee
- Prosth too long
Gait Deviations
Cheat sheet slide w/ videos
SLIDE 79 WATCH IT!!!!!!!!! *****
MAX DF @ which phase?
MSt→ TSt
DO THIS EXERCISE:
TFA vs. Normal Gait comparison (subphases)
*use all knees/feet
SEE SLIDE 80***
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YOU FUCKING GOT THIS SHIT JOSH!!!! YAAAAAAA!!!!