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115 Cards in this Set

  • Front
  • Back

hx

How and when injury occurred. Accident, were other things injured? Type of injury.

SC level and V level

SC ends L1-L2 V level- not full length. SC damaged level does not = vertebral level. Rostral- head. Caudal- tail. More caudal; more descent of n w/in canal to reach exit point. damage at one level can impact n roots coming down from higher levels. Damage to SC = CNS/UMN patho. Damage to spinal nerve = PNS/LMN patho. N roots. Mixed- both. more caudally spinal nn must descend w/in canal before exiting.

ASIA ISCOS classification


= Standardized test used to classify SCI level in pts from acute through rehab. help determine prognosis. Initially, frequently to track changes– looking for emerging incompleteness or growing ZPP. Rate of recovery helpful. Can change level over time w/ return and strengthening. Always in supine. Perform entire assessment

motor level of injury

most caudal key muscle with at least a 3/5 MMT and all rostral key muscles have a 5/5 MMT = last intact motor level. Right and left.

sensory level of injury

most caudal level intact to both pin prick and light touch (scored a 2). Right and left.

single neurological level of injury

Most caudal level where bilateral motor and sensory are intact (where all 4 are intact).

ASIA key mm by level


C5- e flex. C6- w ext. C7- e ext. C8= finger flex (DIP of 3rd). T1- finger abd (5th). T2-L1 no key mm; use sensory level to determine motor level. L2- hip flexors. L3- knee ext. L4- DF. L5- big toe ext. S1- PF. Specific sensory areas

complete

absent sensory and motor function at the S4 & S5 segments (lowest sacral).

incomplete

some remaining sensory and/or motor function at the lowest sacral segments.

ASIA A

Complete: no sensory or motor function is spared in S4-S5.

ASIA B

Incomplete: sensory function is preserved below the neurological level and is present in S4-S5 (absent motor in lowest segment). Sensory no motor.

ASIA C

Incomplete: motor function is preserved below the neurological level & more than ½ of the key muscles below the neurological level are < 3/5 strength. Motor present. Mm test the mm below the injury level.

ASIA D

Incomplete: motor function is preserved below the neurological level & more than ½ of the key muscles are > 3/5 strength. Motor present.

ASIA E

Normal: motor and sensory function are normal.

specific incomplete syndromes

own categories; not A/B/C/D/E... Brown-Sequard. Central cord. Ant cord. Conus medullaris. Cauda equina.

brown-sequard

Hemisection of the cord. Motor tracts on same side; weakness on same side as the lesion. Dorsal column cross at BS- light touch, 2 point impaired ipsi. Spinothalamic- cross right away; pain/temp impairments in contra limb.

central cord

Usually caused by mechanism of injury that results in swelling in SC; central portion of SC impacted. UE > LE. B/c C level- most median of tracts are for UE; most lateral are for the LE. Motor and sensory.

ant cord

Infarct. Dorsal column intact. Bilat involvement below level for ant/lat pain and motor tracts.

conus medullaris

UMN and LMN lesion. Last bit of SC.

cauda equina

LMN lesion.

ASIA sensory testing

Dermatomes-information needed for ASIA classification and to establish baseline. Light touch, 2-point discrimination: dorsal column. Sharp/dull, pin prick, protective: spinothalamic tract. ASIA chart identifies specific point that is innervated by only one spinal nerve . Specific points can be located by boney landmarks.

extra sensory testing (outside ASIA)

Functionally significant sensory info. Kinesthesia/proprioception/vibration - dorsal column. While not part of ASIA, we will still want to know.

ASIA sensory testing protocol

Use area of known intact sensation (on the face) for reference comparison. Do not use opposite side of body as a reference. Can you feel this? Same or diff? Light touch: 1cm light brush with wisp of cotton. Pinprick: sharp and dull side of safety pin used. Prevent substitution with other senses, eg vision.

ASIA sensory scoring

2 = normal = same as felt on face. 1 = impaired = can sense, but feels different than face. 0 = absent. If you do sharp; but they say dull- also a 0. Can't differentiate. Personal preference to do sharp in each dermatome b/c of this.

ASIA mm testing

Comprehensive testing of all available muscles. Beware of muscle substitution. Provide proximal stability. In supine, the bed is providing this. ASIA key muscle testing. 0-5 scale. Important to avoid mm substitution by proper positioning and stabilization. It is important to test all muscles (not just key) as there are other functionally important muscles.

what does key mm mean?

The addition of that muscle has a functional significance. C5- elbow flex- self care. C6- wrist ext- tenodesis grip. C7- elbow ext- transfers, P relief. C8- finger flex- grasp. T1- full hand function. L2- hip flex- advancing. L3- knee ext- transfers.

ASIA v myotome


why?


C4 - / shoulder shrug


C5 elbow flex / GH abd


C6 wrsit ext / elbow flex/wrist ext


C7 elbow ext / elbow ext/wrist flex


C8 finger flex / UD, thumb ext


T1 finger abd / finger abd/add



Intact = 3/5 MMT; can get w/ only C5 for elbow flexors. Why they don't need C5 & 6 to have elbow flex level.

common UE mm subs

Wrist ext (C6) Forearm sup and gravity.


Elbow ext (C7) Ant deltoid with distal end fixed- can pull humerus forward.; don't assume triceps there if you saw them push up or propel w/c. GH ER with distal end free (hold condyles strongly; becomes gravity assisted).


Third Finger flex (C8) Wrist ext for finger flexion- tenodesis.


Fifth Finger abd (T1) Finger extension.

common LE mm subs

Ankle dorsiflexion (L4) Great to extension (EHL)


Long toe extension (L5) Ankle plantarflexion – tenodesis of the foot. Active great toe flexion and then release, rebound into toe ext.


Ankle plantarflexion (S1) Hip flexion to facilitate PF (in grade 3 position)

motor- trunk

Pull of umbilicus. Symmetry? Only upper abs will put it up; one side can pull if stronger. Palpate for specific level. Functionally is plevis rotating posteriorly? Whatever is the intact sensory level is also intact motor for T2-L1. Stability of joints. Lift GH. Sit up.

tone- UMN v LMN

UMN involvement results in spasticity. Reflex loop remains intact- picture. Spasticity b/c no control.


LMN involvement results in flaccidity. Reflex loop is interrupted- picture.


Combinations.


Can help or get in the way

Tone MAS

Grade Description (response to passive stretch) 0 No increase in muscle tone. 1 Slight increase in muscle tone; catch-release or at end of motion. 1+ Slight increase in muscle tone; catch-resistance. 2 Marked increase in muscle tone through most of motion; easily moved. 3 Considerable increase in muscle tone; passive movement difficult. 4 Affected parts rigid in flexion or extension.

prior hx to gather

pre-injury function.


other injuries.


surgeries.


meds.


resp function.

pre injury function- hx

Social environment. Participation in life events. Job and free time activities. Living situation. Most likely younger- less settled and less resources. Less outside assistance. Role in family, school, work, community. Support system. D/C destination. Inpatient will not take unless there is a d/c plan.

other injuries- hx

(common with traumatic injury). Musculoskeletal. Internal injuries. Brain injury. We might the 1st to be taxing this and 1st to note this. Skin.

surgeries- hx

What was done/type of fixation. Precautions. Brace/orthosis required for out of bed? Don/doff position. .

meds- hx

Impacts on rehab.

resp status- hx

Diaphragm- C4; intercostals- segmental (may have partial or no inn). Resp compromise common. Knowing if other previous status imp b/c then higher risk of probs. Asthma. Smoker

CP and CV system review

Ventilator (at least C4 level for intact diaphragm). Trach scar. Chest tubes. Cardiac monitor. TLSO or other that may restrict breathing. Influence of position on respiratory status.*

position and resp status

Supine- diaphragm against gravity, lateral ribcage is gravity eliminated. A against gravity; P blocked. Sidelying- diaphragm is gravity eliminated. A/P excursion is GE. Prone- diaphragm blocked; if primary diaphragmatic breather they may feel panicked. Breaks.

changes in CV system

CN X intact- parasympathetic. Sympathetic control at T level- can be impacted. W/ C & high T level injuries, can lose supraspinal control over sympathetic nervous system (T1-L2) below level of injury; = reduced symp activity. Therefore, bradycardia, arrhythmias, & dilation of peripheral vasculature (hypotension-- general & orthostatic) can occur. HUGE probs; especially early. VITALS!! Impacts tolerance to vertical and EX. Less likely if below C6.

integumentary system review

Abrasions. IV sites. !!**Potential area for skin breakdown**!! Decreased ability to change positions. Decreased sensation. Education is a huge part- give knowledge and responsibility to be sure it is done. Supine every 2h. W/c P relief every 15 min.

cognitive status system review

communication, affect, cognition, language, and learning style. Rehabilitation requires a lot of learning; get to know learning style. Utilize motor learning principles. Very important. High rep. Chance to prob solve. Readiness to learn. Presence of TBI?

TM- aerobic capacity/endurance/ventilation

Vital signs: baseline, during, and after activity. Thoracoabdominal movements and breathing patterns with activity. Responses to positional changes. Need to understand what is working against gravity, what is gravity eliminated, what is gravity assisted, and what is blocked. Pulse oximetry. Full assessment will be covered later.

TM- Anthropometric Characteristics-

Height, weight, girth. Pre-morbid weight. Body type. Male vs female. Arm vs trunk length. Big role. Longer the arms relative to trunk unweighting and transfers are easier. Where weight is carried- sup easier; hips harder. Edema.

ROM overall

Complete examination of all ranges. Normal ROM may not always be the goal. Selective tightness.


Hyper-mobility. Getting in and out of long sitting. Very important for functional tasks

ROM precautions

Unstable L fx. No hip flex > 90º or SLR > 60º


Unstable C fx. No GH flex or abd > 90º.


Confounding factors for testing. Immobilization devices may limit full ROM. Pain. Proximal stability at GH.

Implications of ROM on function.

Extremes in range play an important role in compensating for decreased strength. Loss of motion can limit function (eg elbow extension). Can limit IND!

contractures

PREVENT common contractures in UE of pt w/ tetraplegia: (arms across chest; night splint) GH often in flex, add, and IR- shortened. Prolonged positioning in elbow flex- especially when no triceps function- = contractures. Forearm pro positioning- especially w/ no sup mm function- results in pro contractures. Common LE: Hip flexor. Ankle PF. Multi-podus boots.

C ROM


Goals. Normal ROM w/in limits of any fixation. Avoid tightness in forward head posture.



Functional sig- Forward head posture can interfere w/ balance (head mov'ts used for adjusting COM in sitting) and compromise resp.

trunk ROM goals

Mild tightness in the low back is desired. Stability (not stuck in post tilt), ability to lift to P relief. Avoid overstretching of back extensors. In long sitting if do not have 90/100 SLR hamstring length. Avoid long-sitting with tight hamstrings.

trunk ROM functional sig

Passive trunk stability in sitting. Creates tighter connection between lower trunk and upper trunk which makes transfers and rolling more efficient. Question: when would these goals be important? If no abs, P relief lift, the bottom may not clear b/c no abs to help lift- get tightness in L back ext the pelvis will come a little easier.

hip/hamstring ROM

Goals At least 100° hip flexion, 45° of external rotation, 10° hip extension. SLR of 110°.


Functional Significance- Dressing, bed mobility, long sitting balance, transfers and ambulation. Question: when would these goals be important? Prone, dressing. If too much then flop forward in long sitting. Start day 1. Long sitting more stable

ankle ROM

Goals Dorsiflexion 5°-10°.


Functional Significance Allows for proper foot position on foot plates and during transfers. Required for ambulation. Question: when would this goal be important? Foot plate, transfers, amb.

GH ROM goals

Full scapulothoracic and glenohumeral motions including 90° – 100° of extension and 90° of external and internal rotation. Less motion with unstable shoulder (C4 +).

GH ROM functional sig

Shoulder hyperextension for certain bed mobility skills and to hook push handle when sitting in wheelchair. Rotation allows elbows to biomechanically lock into extension in weight bearing. Question: when would these goals be important? Day 1 stretching- flex, abd, ext! Only w/ stable GH/scapula- intact C5; SITS, deltoid.

elbow ROM

Goals Maintain full motion, especially extension, supination and pronation.


Functional sig- Allows elbow to biomechanically lock in extension in weight bearing. Feeding and grooming. Question: when would these goals be important? Need full ROM if no triceps for bed mobility and transfers. Contractures will limit level of IND. Pro- feeding.

wrist ROM

Goal Attain 90° of wrist extension.


Functional significance Allows for UE WB. Maximizes tenodesis action. Question: at which levels of injury would these goals be important? Tighter grasp.

fingers/thumb ROM goals

Mild tightness in long finger flexors. Prevent overstretching of thumb’s web space. Adequate web space for using thumb as a hook.

finger/thumb ROM functional sig

Development of functional tenodesis. Achieve grasp with thumb and first two fingers. Question: when would these goals be important? No wrist and finger ext together. C6/7 need tenodesis. C8 has grasp.

pain types

Nocioceptive. Musculoskeletal. Above level of injury


Neurogenic Burning, stabbing, tingling. Sensed below level of injury. Less common in complete injuries.

functional mob assessment

Bed mobility. Rolling. Scooting. Supine. Sit.


Transfers. Even surfaces. Uneven surfaces. Sit --> Stand

posture assessment

Resting posture-all positions. Static and dynamic posture. Influence on breathing.

gait/locomation and balance assessment

Wheelchair. Even, uneven surfaces. Curbs/steps. Doorways. Balance in sitting, standing, transitions. Static. Dynamic. Equilibrium and righting reactions. TLSO. Gait.

environmental barriers

Physical Space. Room for w/c to maneuver. Doorway width at entrance and all rooms. Current and potential barriers. Stairs. Floor surface. Counter height/room for approach. Other

phonation

Eccentric control of the diaphragm. Control force and duration. 8-10 syllables per breath is normal; they may need more breathes. SLP.


Role of PT- Awareness of breathing. Strengthening of mm. Positioning changes and breathing.


observe- Length. Voice intensity. Voice quality.

cough

Necessary for mov't of secretions.


Four stages: Adequate inhalation. Closure of glottis. Build up of P. (Abdominals; intercostals. Contract. Abs- T7 to 12 ish.) Expulsion. Consider coordination and mm requirements.


Role of PT- cough techniques. At risk for aspiration, choking, poor pulmonary health. Observe- (as if you have something in your throat) Adequate inspiration. Timing. Force. Effectiveness.

deep insp

Maintain bronchial hygiene. Chest expansion in all three planes. Aerate all portions of the lung. Full innervation of diaphragm and intercostal muscles. If just d then no expansion in all 3 planes.

position of diaphragm

What happens when abdominal mm are not innervated? In sitting: diaphragm lowers 2º drop in abdominal contents position. This results in shortened resting position and a less effective contraction. Stomach pooch. Decreased excursion and less effective. Gravity’s role in diaphragm function. With intact CNS neural input to diaphragm increases w/ upright posture. Abdominal binder can help.

rib observation

[Not acute, happen over time] Flattened anterior chest wall. Supine more. Cavus deformity. Flaring of lower ribs. Triangle vs. square. Triangle- less pecs. Neg P of diaphragm pulls the ribs in. W/ pecs able to maintain some of the shape and resist the change in shape.

tone observation

Posture: scapula/UE and pelvic position relative to trunk. Posture: Spine. Kyphosis. Lordosis. Scoliosis.

breathing observation


Paradoxical. No inn intercostals. Belly up and ribs down. (top)


Accessory mm. (bottom pic). Any mm that attaches to ribcage. Prop on arms- reverse motion of mm. Pecs, scap mm. SCM, upper trap.


Lateral. Shallow. Asymmetrical.

resp tests and measures

Vital signs. Vital capacity. Tidal volume. FEV1. Chest Expansion. Auscultation. ROM. Strength.

resp observe

ribs. tone, breathing pattern. phonation, cough.

heterotrophic ossification

Ectopic bone formation, bone formed in mm and other CT, usually in hips/knees and elbow. Risk factors: complete lesions, male gender, age, spasticity. Below level of lesion. ROM, warmth, swelling. Time to let Dr. know.

autonomic dysreflexia

Occurs with lesions >T6 level. Caused by perceived noxious stimulation below level of lesion; #1 bladder infections. Pain, tone, UTI, fx, sexual response, labor. Response: headache (from high BP), increased BP (can be life threatening), bradycardia, diaphoresis, goosebumps, flushing.

autonomic dysreflexia noxious stim response

The noxious stimulus triggers an exaggerated sympathetic response 2º lack of descending inhibition. This results in increased cardiac output and peripheral vasoconstriction, high BP. This stimulates baroreceptors in aortic arch and carotid sinus, parasympathetic response which slows the heart. Treatment: Remove noxious stimulation. This is emergent.

C orthosis

HALO- screw into skull. Highest level of C immobility. Used when they cannot do surgery.


SOMI- sternal occipital mandibular immobilizer. Decent.


Less effective- Philadelphia Collar- harder plastic neck immobilizer. Soft collar - can move against it; reminder.

TLSO

thoracolumbar sacral orthosis Molded body jacket. Pt specific. Upright or out of bed. We are usually the 1st to put on and sit them up. Don/doff in lab. Limits rib and abdominal excursion. Challenge if diaphragmatic breather- can cut out window to allow more excursion. Hyperextension. Jewett.

KAFO


RGO

locked out in ext, ankles in DF. Crutches or lofstrand crutches for amb.


reciprocating gait orthoses- crosses hip joint. May or may not lock out; usually does not. Tension in cables designed to bring limb forward when it is unweighted. Hard/high energy to don/doff. Skin breakdown?

detrusor

(smooth mm.) Stretch reflex. Parasympathetic (S2-4) innervation involved in detrusor contraction. Facilitates stretch reflex. Sympathetic (T11-L2) innervation responsible for relaxation of the detrusor. Cognitively override stretch reflex.

urethral sphincter and periurethral pelvic floor

Somatic innervation (sacral 2-4) with both reflex and voluntary control. Not a smooth mm.


While bladder emptying is a reflex action, there is voluntary control (descending input from CC) that can facilitate the reflex and inhibit the external sphincter and pelvic floor muscles.

SCI and bladder control

Withcomplete SCI, whether or not the sacral reflexarc is intact determines how the bladder will function.

bladder and C/T lebel

reflexively functioning bladder and no CC input. Initially during spinal shock, bladder flaccid and pt will have indwelling catheter. When bladder begins to fill, will stim reflex arc and result in contraction of detrusor. Loss of voluntary relaxation. bladder will reflexively empty when full but you cannot always count on timing or full emptying. Intermittent cath. External catheter (men). Neurogenic bladder.

bladder and L/S

Lumbar level injuries may result in less effective bladder emptying.


Sacral level and cauda equina injury results in a-reflexive bladder/flaccid bladder. Without sacral reflex arc, the detrusor muscle is flaccid (no parasympathetic input). At risk for urinary retention. Either intermittent catheterization or more permanent indwelling catheter.

bowel

Voluntary control of anal sphincter. Internal sphincter- reflexively controlled (parasympathetic sacral 2-4).w/o sacral reflex (a-reflexive bowel) bowel will not empty reflexively; at risk for impaction and/or incontinence (b/c of lack of external sphincter control).w/ reflexive emptying, still at risk for incontinence because of lack of external sphincter control. Can stim this.

bowel programs

Designed to train the body to evacuate the bowels at the same time every day or every other day. Role of PT Bowel program takes priority over PT. Tolerance to upright positions for easier bowel management. Physical activity promotes motility. If using commode, make sure skin integrity not compromised.

sexual female and male

Fertile. Genital functioning not altered as much as with males. More social difficulties however.




Can father children with intervention. Impaired genital functioning.

PLISSIT model


sexual function. Permission; limited information; specific suggestions; intensive therapy. We function in the first 2.

tolerance to vertical

large focus initially. Out of bed options. Strategies to lessen postural hypotension: Compression stockings. ACE wraps (usually step 1). Abdominal binder. Reclining or tilt in space w/c. Hoyer lift into Tilt table. Standing Frame. BP values. Symptom driven. They may run low (eg 70/50) and still have no symptoms.

joint protection

GH Pain- Overuse/rep mov't injuries. Increased WB demands. Increased ROM demands.


Hip position-ER and Abd, most stable structurally, prevents post dislocation. Be careful not to overstretch post structures of hip joint during hamstring stretching.



posture and joint protection


Posture/alignment is #1 line of offence and defense. More upright is better for GH. Need to take IND and risk into account- GH injury can limit IND. SITS and scap mm EX for life.

OP

Will have OP in 10-20y. Not getting the mm contraction around the bones. Add to contraindications. No aggressive stretching.

mm substitutions

agonist mm. gravity. tension. distal end fixed. momentum. head-hips relationship

agonist mm


Substitution using other available agonist muscles. Not always available after SCI unless incomplete.


gravity sub


Position body part so gravity will effect desired motion.


Sitting GH abd/IR to pronate.


Rolling- UE momentum (arms <90 flex)


GH ER to next elbow


Swing to gait- gravity advances

tension sub


momentum sub


in passive structures. Rotation of trunk by using Lats (tight) to assist in role. Tenodesis grasp. Flex wrist, fingers ext. Ext wrist, fingers flex



Swinging arms/head in order to roll. 1 arm hooked, head and arm forward and to side to scoot.

distal end fixed sub


With distal end fixed, the proximal mm causes mov't at intermediate joint.


W/ hand fixed WB and elbow flexed, GH flexion and ER will lock elbow in ext.


propel w/c w/ ant delt/flex

head hips relationship

First class lever-UE’s usually the fulcrum (needs a fulcrum to work). Fulcrum usually the arms. Head down, bottom up. Head to right, bottom to left. Use head mov't to direct pelvis.

ASIA steps


1. Sensory level (R/L)


2. Motor level (R/L)


3. Single neurological level


4. Determine completeness- sacral sparing. complete injuries only- (ZPP).


5. ASIA impairment scale AIS

sensory info

Key sensory points. Representative of dermatomal area found in majority of body mapping. Found via palpation of boney landmarks for reliability. T3 close to C4- most likely to confuse. Test methodically. In order

light touvh

Wisp of cotton swiped ONCE over 1cm on face to use as a normal comparison- can swipe face again if pt needs reminder throughout test. Immediate response is used as result. Sensation may travel throughdiff pathway and that delayed response it not accurate for spinal segment being tested. If swipe needs to be repeated allow enough time to lapse so that false + of accumulated sensation does not occur.

light touch grade


0- not felt



1- felt but differs from normal comparison.



2- felt and same as normal comparison.


NT- Pt report is not reliable, pt cannot follow instructions or key point or alt point* not available. * Can use alt single point in dermatome if key point is unavailable- note for re test

pin prick

Open safety pin used, pointed end (sharp), rounded cap end (dull)- offer both on face as example of normal.Alt sharp/dull on key sensory points in an “irregular non-predictable manner”. Need every dermatome tested w/ both. If you question reliability of pt report, you can test the segment w/ 10 reps (spaced out) and 8/10 correct considered accurate/intact.

pin prick grading


0- Absent or cannot discriminate b/n sharp and dull.


1- Impaired- can distinguish b/n but reports sharp is diff than “normal” comparison.


2- Normal- distinguish b/n sharp/dull, and same as “normal” comparison.

deep anal sensation

Deep Anal sensation- if LT and PP are absent in S3-5. Digital exam of rectal wall.

key mm

One muscle action needed per spinal segment. Action had to have functional significance. Accessible and isolated in supine position. If innervation is primarily from 2 spinal levels-most rostral level chosen. Axial muscles not chosen. Cannot be tested per international standards.

Motor exam

Done in supine. consistent position through rehab. Takes into account the effects of position on tone. Improves reliability for serial testing. 0-5 MMT scale no + or -. the most caudal key muscle w/ at least 3/5 strength AND all rostral keymm have 5/5 strength.

motor special circumstances

NT- unable to reliably test key muscle. Casted. Contraindication to active movement. Amputation.




5* Key muscle presumed to be normally innervated. “non neurogenic weakness”. Weakness secondary to pain or non-use.

motor test guidelines

Perform test in the same order each time to ensure reliability. Be accurate w/ placement of your stabilizing and resisting hands. Accurate instructions- especially when testing for 4 or 5/5. Assure maximal effort by patient. Reassure pt that you will stop testing if there is pain. Move though available PROM first. Start w/ 3/5 position and move up/down accordingly.

PROM first

motor testing. If > 50% normal PROM, then can test using 0-5 scale. If <50% normal PROM, then muscle is NT. If spasticity is present, try to relax pt and mm and try again. If you can’t get segment into position, then mm is NT. If you believe the mm is fully innervated but pain or disuse are the contributing factors for weakness found, score 5*

motor scoring w/ sensory score

if no key mm designated for a myotome, then intact/absent motor level is determined based on sensory level for that side. (2=intact motor). For C5/L1 motor levels are intact, you must also look to sensory testing results in rostral levels. These are used to determine if the “all rostral levels are 5/5” component of the rules for determining motor levels is met. Last place there was a 2.

neurlogical level of injury

most caudal segment ofcord w/ intact sensation and antigravity (3 or more) mm function strength, w/ normal (intact) sensory/motor function rostrally. Used as the reference point when determining between AIS C or D (count key mm below this level). mainly used for ease of in classifying subjects in research, not clinically specific to determine functional outcomes.

zone of partial completion

complete injuries only. Record R/L motor and R/L sensory. Lowest level below each motor and sensory level that has at least partial innervation. If none, ZPP is the ASIA level designated. Prognostic value. For ex: the larger (at least 3 levels) the sensory ZPP the more likely pt will convert from complete to motor incomplete by end of rehab. Same level w/ diff size ZPP have diff prognosis.

B --> C scenario

When lowest sacral segment has sensory but not motor (typically classified as B) AND has presence of voluntary motor function > 3 levels below L or R motor level, they are classified a C. Does not need to be key mm , (any voluntary mm contraction) and can be as min as 1/5. For prognostic reasons; greater likelihood of regaining more function.