L5: TFA_TTA Gait Training Part 1 Flashcards
Functional capacity of amputees
TTA
- Can resume prev activities
- amb on lvl surfs, inclines, stairs
Functional capacity of amputees
TTA
Rely on ________ to push or lift heavy load
intact limb/balance
Functional capacity of amputees
TTA
Bilateral kneeling uncomfortable….what should you do?
Teach them to WB thru patellar tendons
Functional capacity of amputees
TTA
Amb _______ SLOWER why?
15-40% slower to conserve energy
Functional capacity of amputees
TFA
- Can amb and maint prolonged standing w/ occ. breaks
- Can lift/push light to med loads
Functional capacity of amputees
TFA
Stairs: Step TO pattern…..why?
No Ecc. quad control, but depends on the knee prescribed
Functional capacity of amputees
TFA
Walking speed is _________ SLOWER
40-55%
Functional capacity of amputees
TFA
Shorter the limb===________==_________
Shorter the limb==shorter lever arm==inc’d fatigue
Functional capacity of amputees
In General…..
Energy Req’s
- INCd energy req’s and cardiac output to walk WITH prosth.
- TTA→ O2 costs 16-28% more than controls
- TFA→ 60-110% inc
GET THEM ON UBE IMMEDIATELY!!!!
TTA: Static WB Eval
2 tips
- Look @ prosth. separate
- Look @ pt as a whole
*best in standing
TTA: Static WB Eval
General…
- Part of initial eval assess ROM, suture healing, strength, functional abilities
- Provide pt w/ info on how skin tension may feel and have them distinguish bw skin tension and pain
- **manual stretch to simulate !!!
TTA: Static WB Eval
Educate on what ?
*Wearing schedule
*Amt of socks
*Cleaning socket + interface
TTA: Static WB Eval
Assessing pt w/out prosth donned and why??
- Assess whether pt can stand indep. w/out prosth donned
- Gives info on type of interface and suspension most approp.
TTA: Static WB Eval
Wearing Schedule Flow Chart
PRINT!!!
TTA: Static WB Eval
Don/Doff should be done in ______
SITTING!!!
TTA: Static WB Eval
Should be done in sitting…..but if in standing these are the guidelines:
- Pt wt shifts onto prosth and pulls wrinkles from socks
- Tighten suspension system→ should be snug
- ***Ensure prosth has NOT rotated during STS or tightening process
TTA: Static WB Eval
HOW SHOULD IT FIT????
KNOW THIS!!!!!!!!!!!!!!!!!
KEY INFO!
- Pt may need to shift wt or take a few steps to accurately assess comfort and alignment
- Remember→ check redness
- Pts will often NOT put full wt onto newly fitted prosth device
- *TIP: use Biodex to educate
- Look for obv compensations @ trunk, prox LE and contralat limb
TTA: Static WB Eval
COM shifts which way?
COM shifts contralat & Sup. to prosth
TTA: Static WB Eval
Manual assessment by PT includes:
- Good proximal fit
- If PTB-SC
- Approx ⅓ to ½ of patella should be w/in socket*****
-
Med and Lat flares should be superior to condyles and snug
- **Test in sitting
TTA: Static WB Eval
In the case of PTB-SC
how much of patella should be w/in socket??
⅓ to ½ of patella should be within socket
TTA: Static WB Eval
Medial and lateral flares
Superior to condyles and snug
TTA: Static WB Eval
More on manual assessment by PT:
- Include:
-
Total contact fit distally
- *should be able to see and touch tissue in valve
- Re-assess alignment including:
- foot
- pylon and socket relationship
- ALL from anterior, lateral, and posterior views*****
-
Total contact fit distally
TTA: Static WB Eval
How should they LOOK?
Once prosth fit is correct…. begin what?
Postural assessment
TTA: Static WB Eval
How should they LOOK?
Once prosth fit is correct begin Postural Assessment including:
- Observation all three planes (@ least two)
- Assess alignment of bony landmarks: Symmetry
- Iliac crests
- PSIS, ASIS
- Greater trochs
- Superior patella border
- Overall leg length should be no more than ½ inch diff
TTA: Static WB Eval
How should they LOOK?
Bony landmarks for checking symmetry
Iliac crests
PSIS, ASIS
Greater trochs
Sup patella border
TTA: Static WB Eval
How should they LOOK?
Overall leg length should be NO MORE than _______ diff
½ inch
TTA: Static WB Eval
Checking EQUAL WB
MUST HAVE
- Biodex
- sheet of paper under toe, heel and med/lateral aspect
TTA: Static WB Eval
Checking PAINFUL WB
AVOID!!!
- Clay, lipstick, marker in socket
- determines where they are WB
TTA: Static WB Eval
IF more than ½ inch leg length diff, must determine what?
Whether oirigin is intrinsic (anatomical) OR extrinsic (prosthesis)
TTA: Static WB Eval
Intrinsic vs. Extrinsic cause for leg length difference (greater than ½ inch)
-
Intrinsic
- Correct w/ approp interventions
-
Extrinsic
- Consult CPO
TFA: IRC Socket Static Eval
Manual assessment by PT includes:
- Good proximal fit→ sitting AND standing
-
Sitting:
- should have LESS anterior hip discomfort when sitting
-
Standing:
- In IRC: ischial tube and pelvic ramus should be resting WITHIN socket
- Min. adductor roll present→ due to design
- In IRC: ischial tube and pelvic ramus should be resting WITHIN socket
TFA: IRC Socket Static Eval
Sitting:
Should have LESS anterior hip discomfort
TFA: IRC Socket Static Eval
Standing:
In IRC socket→ Isch tube and pelvic ramus should be resting WITHIN socket
*MIN adductor roll present due to design
TFA: Quadrilateral (Quad) Socket Static Evaluation
what is KEY?
EDUCATION!
TFA: Quadrilateral (Quad) Socket Static Evaluation
Manual assess by PT includes:
- Good proximal fit in BOTH sitting and standing
- tell them this!
-
Sitting:
- Discomfort common in groin/anterior hip due to higher ant. wall
-
Standing:
- Palpate isch tubes by having them flex forward
- When they return to standing→ should be pressure bw IT and post. shelf
- *INFORM pt→ may feel “intense pressure @ ITs and in Ant hip== normal and needed
TFA: Quadrilateral (Quad) Socket Static Evaluation
Sitting:
Discomfort common in groin/anterior hip due to higher ant. wall
TFA: Quadrilateral (Quad) Socket Static Evaluation
Standing:
Palpate isch tubes by having them flex forward→ when they return to standing there should be pressure bw IT and post. shelf
*Pt may feel intense pressure @ ITs and anterior hip== Normal and Needed!!!
TFA: Static Eval
Talk about the fit distally
-
TOTAL CONTACT fit distally
- Should be able to see/touch tissue in valve
- Unable to easily fit fingers in socket proximally
TFA: Static Eval
Re-assess alignment what/where?
- Re-assess alignment:
- foot
- pylon and socket relationships
- ALL from ant, lateral, posterior views
-
*NOTE: Ensure 50/50 WB!!!
- inset vs outset ****
TFA: Static Evaluation
- If they have pain in WB they will inherently want to add cotton plys to increase comfort….
- Sometimes this is NOT approp!!!
-
Need to assess origin of pain and alignment BEFORE adding socks
- *REMEMBER: Intrinsic vs. Extrinsic origin
TFA:
If pain in WB….why is it NOT approp to add cotton plys right away?
must assess origin of pain and alignment and determine intrinsic vs extrinsic origin
TFA: Static Eval
How should they LOOK?
- Once prosth fit is correct→ Postural assessment:
- Observe all three planes
- Alignment bony landmarks
- Iliac crests
- PSIS, ASIS
- Greater trochs
- Overall leg length should be NO MORE than ½ in. difference******
Overall leg length diff no more than _______
½ inch difference
At the end of evaluation…..
TAKE EVERYTHING OFF!!!!
- Re-inspect skin
- Re-take vitals
- Borg RPE???
Key factors that contribute to changes in gait in Transtibial amputees (TTAs):
4:
- Length of RL
- Suspension and socket→ alignment
- Fit of prosth.
-
Foot componentry
- Stability vs. Mobility
- Maybe they are better w/ more stable foot
- REMEMBER: More mobility === LESS stability
- Maybe they are better w/ more stable foot
- Stability vs. Mobility
Key factors that contribute to changes in gait in Transfemoral amputees (TFAs):
6:
- Length of RL
- Suspension + Socket→ alignment
- Wt. of prosth
- Fit of prosth
-
Knee componentry→ *another jt to control
- stability vs mobility
-
Foot componentry→ *another jt to control
- stability vs mobility
Prosthetic Gait: TTA
-
MAIN GOAL of TTA gait progression:
- Facilitate smooth progression of tibia over a fixed ankle-foot complex
- A typical pattern in TTAs:
- Hesitation of stance progression caused by the amp. shifting wt too far anterior over knee due to weakness or fear
- This will increase shearing forces, dec gait velocity and inc energy expend.
Prosthetic Gait: TTA
MAIN GOAL of TTA gait progression:
Facilitate smooth progression of tibia over fixed ankle-foot complex
Prosthetic Gait: TTA
Typical pattern?
Hesitation of stance progression caused by the amp. shifting wt too far anterior over knee due to weakness or fear
Prosthetic Gait: TFA
- Hip Ext strength deficits (<3/5) typ catastrophic in those w/ TFA
- Profound glute weakness may preclude functional amb in this pop.
- Glutes + RL stabilize knee during entire stance phase
Prosthetic Gait: TFA
Catastrophic in those w/ TFA?
Hip Ext strength deficits
<3/5
Prosthetic Gait: TFA
May preclude functional amb in TFA pop?
Glute weakness
*Glutes + RL stabilize knee during entire stance phase
Prosthetic Gait: TFA
- Knee jt stability is paramount when considering knee jt. componentry
-
Length of RL has drastic effects on knee control
- Longer RL’s, Longer lever arms== improved control against socket wall
Prosthetic Gait: TFA
Paramount when considering knee componentry
Knee Jt Stability
Prosthetic Gait: TFA
Drastic effects on knee control
Length of RL
Prosthetic Gait: TFA
Length of RL has drastic effects on knee control
Longer RLs==_______==______
Longer RLs==longer lever arms==improved control against socket wall
Prosthetic Gait: TFA
2 things that will generally have gait profiles closer to normal profiles
- Traumatic amputees
- Microprocessor controlled knees
Prosthetic Gait: TFA
Traumatic amps gen have gait profiles closer to normal profiles
Why?
Younger pop. typ.
Less pain
Improved strength/balance
Prosthetic vs. Normal Gait
What aspects are DIFFERENT in prosthetic gait?
- Decd selective mm control
- Decd jt proprio and afferent info sent to brain
- Change in COM location
- Incd energy expenditure
Sag. Plane biomechanics
TTA gait
Significant Findings:
Decd velocity
Decd stride length
Incd heel only time
Sagittal Plane biomechanics
TTA
*BE ABLE TO EXPLAIN THIS PICTURE!!!
SEE PICS
Sagittal Plane biomechanics
TTA
Vastus Lateralis
BE ABLE TO EXPLAIN!!!
Sagittal Plane Biomechanics:
TTA
*Co-contraction of HS’s
see pics
Prosthetic Gait: Knee ROM profiles
EXPLAIN!!!
Involved limb
Thick= Gressinger PLUS foot
Thin= SACH foot (stable foot)
Prosthetic Gait: Hip, Knee, Ankle profiles
ROM, Moment (Torque), Power
see pics
Prosthetic Gait: TFA
Transfemoral knee flex/ext
What type of knee most likely?
Single Axis→ flex/ext only
GRF Vector in normal gait
Kinetics + vectors video slide 42
WATCH IT!!!
Frontal Plane Biomechanics
All info…
- Inset foot will induce counterclockwise force (when viewed from front)→ Creates pressure on proximal medial limb and distal lateral limb
- **BOTH pressure tolerant areas
- *Bench alignment typ slightly medially inset to axis of rotation
Frontal Plane Biomechanics
Inset foot induces a ________ force
Counterclockwise
Frontal plane biomechanics
Inset foot induces counterclockwise force
Creates pressure on _________ limb and ___________ limb
Pressure on prox medial and distal lateral limb
Frontal plane biomechanics
Bench alignment typ ___________ to axis of rotation
slightly medially inset
Clinical Pearl:
When training pts, particularly during gait…
Keep these points in mind:
-
Efficiency of doing any activity is the ratio bw work accomplished and the energy expended
- Work/Energy
- This must be balanced w/ conscious effort to maintain safety of all pts***
- May not look like normal gait** but may be **optimal for that pt***
- Develop realistic and measurable goals that match lvl of activity and potential
Develop realistic and measurable goals that match lvl of activity and potential
Accurate goals dictate what?
Accurate goals dictate type of prosth/orthotic you prescribe
Early Gait Training:
TTA gait and rehab vs TFA outcome wise? Who has better outcomes?
TTA gait/rehab typ BETTER OUTCOMES vs TFA or high amps
Early gait training:
TTA gait/rehab typ better outcomes vs TFA or high amps
Due to:
- Incd knee control
- LESS prosth weight
- LESS energy cost
- *More anatomical jts→ more jt awareness→ incd proprio and balance
- Less prosth parts, less alterations
TTA gait/rehab typ better outcomes vs TFA or high amps
More anatomical jts==______==________
More anatomical jts→ more jt awareness→ Incd proprio and balance
Early Gait Training:
Usually more advanced and IND pts and goals should match:
Examples?
- Gait w/out AD
- Reciprocal stair pattern
- Return to sports
- Uneven terrain IND
- Single (prosth.) limb balance
Early Gait Training:
REGARDLESS of lvl of amputation….
EARLY goals for gait SHOULD include:
- Progressive WB time
- Wt shifting
- Foot placement
- Pelvic and trunk rotation
- Upright reciprocal and symmetrical gait pattern
Early Gait Training
Progression Ideas******
IMPORTANT!!!!!!
- One UE assist
- Full gait cycle in //bars
- NO UEs
- Outside //bars w/ approp AD
*Match real life scenarios→ stairs, incline/declines, dual-tasking, etc…..
Gait Training: TFA
These two things are CRUCIAL!
2:
- Alignment
- Fit
Gait Training: TFA
Make sure pt is educated in:
How it should feel
Approp areas of redness
Wear time
***DEVELOP CONFIDENCE!!!
Gait Training: TFA
Active process where pt is _______
In control of his/her own progress!!!
Gait Training: TFA
Pt needs to develop _________
TRUST in prosthesis!!!
Gait Training: TFA
Important to gain control of Hip Ext for….
Knee stability
Gait Training: TFA
Gaining control of hip EXT (knee stability) @ ________ in loading phase of stance is top priority**
IC & MSt
Gait Training: TFA
Gaining control of ______ (_____) @ IC &MSt in loading phase of stance is top priority
Hip Ext
(Knee stability)
Gait Training: TFA
Gaining control of hip EXT (knee stability) @ IC&MSt in loading phase of stance is TOP PRIORITY**
Exercise should simulate this how?
- Exercise should simulate this control in WB
- ex. bridging w/ distal limb on towel roll
- Or manually facilitate
Early Gait Training
Intervention Idea….
Stance and Swing activities in ½ cycles
aka “Pre-gait activities”
Break it down into “Stance Goals” and “Swing Goals”
Early Gait Training:
Stance and Swing activities in ½ cycles:
Stance goals:
-
Stance Goals:
- Controlled heel strike
- Hip EXT from IC to MSt
- Controlled knee flex from MSt→ PSw
Early Gait Training:
Stance and Swing activities in ½ cycles:
Swing Goals:
-
Swing goals:
- Initiate w/ hip flexion
- Prepare for IC
Early Gait Training
Other intervention ideas outside of St vs Sw activities
Foot tapping in various stages
**Proprioception
**YOU tap the foot
Gait Training: TFA
Understanding when to facilitate or inhibit a motion
vs.
When to have pt learn on their own
Talk about feedback…
Constant, repetitive feedback may NOT be best @ this stage***
Gait Training: TFA
Equalizing WB in //bars
- Equalize WB in standing w/ Wt shifting in all planes
- **String and blue marble analogy→ imagine string w/ marble hanging down and they have to center it!!
Gait Training: TFA
MSt must have balance bw hip _______ and _______
MSt must have balance bw hip ABDs and ADDs
Gait Training: TFA
What would cause the pt to lurch TOWARDS prosth. side to INC stance control
2:
- Poor socket fit
- med. soft tissue/groin discomf.
- Weak hip ABDs
Gait Training: TFA
Poor socket fit (med soft tissue/groin) or
Weak hip ABDs…..
What happens and what does it do?
- Pt will lurch TOWARDS prosth. side to INC stance control
- This compensation strategy will DEC forward momentum and waste energy
Gait Training: TFA
Manual facil/inhibit during Stance Gait
Techniques to do this:
- Behind pt on posterior lateral aspect of hips
- Fingers flared out “feeling for” motion in the frontal plane and rotation in the transv. plane
- IF pelvis drifts laterally, therapist provides a downward, medial and anterior force to limit.
Gait Training: TFA
In PSw, IF pt can NOT actively shorten leg by flexing (transverse rotation)
What happens as a result?
Toe drag or catch
Gait Training: TFA
In PSw, IF pt can NOT actively shorten leg by flexing (transverse rotation)
==> Toe Drag or catch
Compensatory strategies to clear foot include:
3:
- Hip hiking
- Circumduction
- Vaulting
THIS has been shown to be the single, most important source of propulsive energy for effective prosthetic gait:
Rapid and brief contraction of the hip flexors -→ going into swing phase
Gait Training: TFA
Cueing to imagine kicking a ball w/ front of thigh
Why?
Rapid and brief contraction of the hip flexors has been shown to be the single, most important source of propulsive energy for effective prosth. gait
Gait Training: TFA
In TSt/PSw….how can therapist facilitate increased hip flexion initiation?
Provide quick stretch to POST downward facilitation @ hip flexor
Gait Training: TFA
Talk about heel rise during stance
Timing and ability for proper heel rise during stance promotes efficient gait pattern
Gait Training: TFA
Timing and ability for proper heel rise during stance
Almost entirely dependent on what?
Prosth. alignment that influences heel and toe levers
Gait Training: TFA
Timing and ability for proper heel rise during stance
Distinguish bw different heel and toe levers
- LONG toe levers== LATE heel rise (L and L***)
- SHORT toe levers== PREMATURE heel rise and knee flex==drop off
LONG toe levers====
LATE heel rise
SHORT toe levers==
PREMATURE (EARLY) heel rise AND knee flexion causing “drop off”
Pre Gait training vids
STOP AND WATCH!!!
SLIDE 59
Pelvic facilitation/inhibition during gait (stance and swing)
Intervention to use @ IC:
Hip EXT facilitation
Pelvic facilitation/inhibition during gait (stance and swing)
Intervention to use @ LR→MSt (remember frontal plane motion here)
Hip ABD facilitation
Pelvic facilitation/inhibition during gait (stance and swing)
Intervention to use @ MSt→PSw (need that quick hip flex)
Quick stretch hip flexor facilitation
Pelvic facilitation/inhibition during gait (stance and swing)
Interventions to use @ TSt→ISw
Need that rotation and hard hip flex
Resistance (@ hip flex) to facilitate transverse plane hip rotation (to flex knee)
***remember you did this in class!
GAIT DEVIATIONS AND POSSIBLE CAUSES
TTA vs TFA
@ VARIOUS STAGES OF GAIT CYCLE
IN ANOTHER DECK!!! KNOW THEM ALL!!!