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92 Cards in this Set

  • Front
  • Back
1st LUMBAR ROOT - Cause
- neoplasm
- disc lesion often secondary to lower level fusions
1st LUMBAR ROOT - Area of Pain
forbidden area, outer buttock, trochanter & groin
1st LUMBAR ROOT - Dural Signs
- +ve neck flexion + slump
1st LUMBAR ROOT - Articular Signs
- flexion most often affected depending on size
- extension also may be affected
1st LUMBAR ROOT - Conduction Signs
- motor - none
- sensory - hypoaesthesia just below the medial half on inguinal ligament
1st LUMBAR ROOT - Differential Diagnosis
Neoplasm
1st LUMBAR ROOT - Treatment
- refer back to physician initially
- if OK, traction
2nd LUMBAR ROOT - Cause
- neoplasm
- disc lesions often secondary to lower level fusions
• z-joint
• DDD
• stenosis from a variety of factors
• posterolateral disc lesion from ‘level above’ may capture L2 as it exits laterally

* stenosis and disc bulges rare in lumbar spine
2nd LUMBAR ROOT - Pain
upper lumbar, anterior thigh to knee
2nd LUMBAR ROOT - Dural Signs
neck flexion
2nd LUMBAR ROOT - Articular Signs
- flexion most affected depending on size
- extension also affected
2nd LUMBAR ROOT - Conduction Signs
- motor - weak hip flexion
- sensory - anterior thigh
2nd LUMBAR ROOT - Nerve Root Contribution
• femoral and obturator nerve
• may have positive prone knee bend
2nd LUMBAR ROOT - Reflex
untestable
2nd LUMBAR ROOT - Differential Diagnosis
- upper lumbar or femoral neoplasm
- meralgia paraesthetica
- claudication
2nd LUMBAR ROOT - Treatment
traction
3rd LUMBAR ROOT - Cause
• large IVD (most likely)
• stenosis
3rd LUMBAR ROOT - Pain
- mid lumbar, upper buttock, whole anterior thigh & knee, medial knee to just above the ankle
3rd LUMBAR ROOT - Dural Signs
- prone knee flexion
- occasionally +ve SLR
3rd LUMBAR ROOT - Articular Signs
extension major motion loss
3rd LUMBAR ROOT - Conduction Signs
- motor - slight weakness of psoas, grosser loss of quadriceps
- sensory - hypoaesthesia inner knee & lower leg
3rd LUMBAR ROOT - Reflex
- knee jerk absent or diminished
3rd LUMBAR ROOT - Differential Diagnosis
- hip or knee arthritis
- loose body
- femur neoplasm
- claudication
- long saphenous neuritis
- L3 metastases
3rd LUMBAR ROOT - Treatment
- neutral or extension protocol
How common is a lesion of L4?
40% of all nerve root problems are at L4
4th LUMBAR ROOT - Clinical Presentation
- pain with spinal movements - directional sense of provocation - worse on flexion better in extension
- referral pattern - dermatomal pattern
- history of flexion/rotation injury - acute/sharp pain which then gets worse
- primarily back pain, maybe the buttock (disc creating pain) - then wake up to pain shooting down leg - disc & neurogenic pain (chemical irritation)
- postural findings? (lacks consideration of posture - slumpy)
- AGE: 20 with increasing prevalence in 30's and 40's (rare in 60's)
- not a gender issue
- symptoms centralize
4th LUMBAR ROOT - Pain
- mid lumbar or iliac crest, inner buttock, outer thigh & over the leg to the inner foot & great toe
4th LUMBAR ROOT - Dural Signs
SLR, bilateral & crossed-SLR & neck flexion
4th LUMBAR ROOT - Articular Signs
marked deviation common as is gross limitation of one side flexion
4th LUMBAR ROOT - Conduction Signs
- motor - weak dorsiflexion
- sensory - hypoaesthesia anterior & medial lower leg & great toe
4th LUMBAR ROOT - Key Muscle
tibialis anterior w/ dorsi flexion reflex
4th LUMBAR ROOT - Reflex
- tibialis anterior & posterior
- absent or diminished
4th LUMBAR ROOT - Differential Diagnosis
- spondylolisthesis or claudication
4th LUMBAR ROOT - Treatment
- neutral or extension protocol
5th LUMBAR ROOT - Cause
- compressed by the 4th as well as the 5th disc
5th LUMBAR ROOT - Pain
- SI area, lower buttock, lateral thigh & leg, middle 3 toes & medial sole of foot
5th LUMBAR ROOT - Dural Signs
- unilateral SLR & neck flexion
5th LUMBAR ROOT - Articular Signs
- may deviate during flexion otherwise as expected for size
5th LUMBAR ROOT - Conduction Signs
- motor - weakness of peroneal, EHL & hip abductors
- sensory - hypoaesthesia outer leg & middle 3 toes & medial sole
5th LUMBAR ROOT - Key Muscles
- extensor hallucis longus and peronei
- hamstrings/adductors
- test great toe extension
5th LUMBAR ROOT - Reflex
- peroneus longus, EHL & EDB absent or diminished
5th LUMBAR ROOT - Differential Diagnosis
- peroneal neuritis
- claudication
- loose body or meniscal derangement at knee with pressure on tibial nerve
- spondylolisthesis
- trochanteric syndromes
5th LUMBAR ROOT - Treatment
- neutral or extension protocol
1st SACRAL ROOT - Cause
- compressed usually by 5th disc
1st SACRAL ROOT - Pain
- SI area, inner buttock, posterior thigh & occasionally heel & lateral foot & 2 toes
1st SACRAL ROOT - Dural Signs
- SLR & neck flexion
1st SACRAL ROOT - Articular Signs
- as expected for size
1st SACRAL ROOT - Conduction Signs
- motor - weakness of plantarflexion, hamstrings & peroneii
- sensory - hypoaesthesia outer leg & foot & lateral 1-2 toes
1st SACRAL ROOT - Key Muscles
- ankle plantar flexion
- ankle eversion
- hip extension
1st SACRAL ROOT - Reflex
- peroneus longus, EHL, EDB absent or diminished
1st SACRAL ROOT - Differential Diagnosis
- sacroilitis, claudication, spondylolisthesis
1st SACRAL ROOT - Treatment
- neutral or extension protocol
2nd SACRAL ROOT - Pain
- buttock, posterior thigh to heel
2nd SACRAL ROOT - Dural Signs
- SLR & neck flexion
2nd SACRAL ROOT - Articular Signs
- as expected for size
2nd SACRAL ROOT - Conduction Signs
- motor - weakness of plantarflexion, hamstrings & hip extensors
- sensory - hypoaesthesia posterior thigh & medial calf to heel
2nd SACRAL ROOT - Key Muscles
- test knee flexion
- achilles
- hamstrings
2nd SACRAL ROOT - Reflex
- triceps surae, hamstring, gluteus maximus absent of diminished
2nd SACRAL ROOT - Differential Diagnosis
- sacroilitis, claudication, spondylolisthesis
2nd SACRAL ROOT - Treatment
- neutral or extension protocol
3rd SACRAL ROOT - Pain
- inner groin, medial thigh to knee
3rd SACRAL ROOT - Dural Signs
- none or neck flexion
3rd SACRAL ROOT - Articular Signs
- as expected for size
3rd SACRAL ROOT - Conduction Signs
- motor - none
- sensory - hypoaesthesia medial thigh
3rd SACRAL ROOT - Differential Diagnosis
- adductor strain or osteitis pubis
3rd SACRAL ROOT - Treatment
- neutral or extension protocol
4th SACRAL ROOT - Pain
- lower sacral, peroneal & genital areas
- saddle area paraesthesia
4th SACRAL ROOT - Dural Signs
- none or neck flexion
4th SACRAL ROOT - Articular Signs
- may or may not have gross limitation of all movements
4th SACRAL ROOT - Conduction Signs
- motor - bladder, bowel and/or genital dysfunction
- sensory - lower sacral, peroneal & genital areas - saddle area
4th SACRAL ROOT - Reflex
- anal wink reduced
4th SACRAL ROOT - Differential Diagnosis
- genital & bladder dysfunctions but always assume a root palsy
4th SACRAL ROOT - Treatment
- refer to physician - careful traction
Most significant hindrance to nerve conduction
A lack of O2 to a nerve root is more significant in decreasing conduction than is mechanical pressure.
Important Notes
- assume L1/2 nerve root findings are “sinister” until proven otherwise
- L3 nerve root finding commonly mimic OA hip
- equal incidence of L4 & L5 nerve root involvement
- “S234 keep the poop up off the floor”
- S4 findings a surgical emergency
Sign of the Buttock - S/S
- SLR is limited & painful
- passive hip flexion with the knee flexed is limited & more painful
- pain felt in the buttock - may radiate into the posterior thigh & lower leg trunk flexion is limited
- all other lumbar movements are full
- non-capsular pattern of restriction of the affected hip
- empty end-feel
- all resisted hip movements painful & weak
- affected buttock may appear larger
- warm, swollen buttock confirmed by palpation
Sign of the Buttock - Causes
- osteomyelitis of the upper femur
- chronic septic sacroiliac arthritis
- ischiorectal abscess
- fractured sacrum
- gluteal contusion
- neoplasm involving the upper femur iliac neoplasm
- septic bursitis
- rheumatic fever with bursitis

LE Myotomes
• L2: Hip flexion
• L3 :knee extension
• L4: Ankle dorsiflexion
• L5: Great toe extension
• S1: AnkIe plantar flexion, ankle eversion, hip extension
• S2: Knee flexion
Which 2 vertebral discs could cause an L1 nerve root lesion?
• T12/L1 & L1/L2
• with a posterolateral disc lesion T12 could affect L1 because L1 nerve moves laterally in preparation to exit at the level below
Why could there be evidence of cord involvement OR cauda equina involvement with an L1 nerve root?
• at the level of L1 the spinal cord transitions into the cauda equina
• could have either cord signs or cauda equina signs
• could have UMN or LMN
What are identifying factors of metastatic lesions (as compared to myofascial or articular?)
• unremitting night pain
• weight loss
• will have a problem identifying ‘causes’ of pain
• weightbearing activities painful because trabecular bone is affected
How will you till the difference between dural and myofascial involvement during the prone knee bend for femoral nerve mobility?
• dura will cause symptoms below 90° (i.e., ~80°)
Fatigueable Weakness
Can generate one strong contraction, it slowly fades away then 2nd contraction only have 1/2 strength… slowly declining
What would a hypotonic patellar tendon reflex tell you about L3 involvement?
• LMN
• nerve root could be captured inside spinal canal because cauda equina is LMN or captured in IVF

* if its hyper-reflexive - UMN - pathology would be higher up (somewhere where the cord still is)
L3 Nerve Root versus Hip OA
• OA = capsular pattern of hip, much more provocative hip examination
• L3 nerve = neurogenic symptoms (parasthesia/anesthesia) - not OA of the hip, would be something else
Vascular Claudication versus Spinal Stenosis
• Claudication = PVD - aching lower limbs with exercise, better with rest - should get better if they stop and stand still - don't need to unload spine to get better

• Spinal Stenosis - need to stop and sit to get better, spinal stenotic changes in the spine (worse going downhill, better uphill & leaning over)
- i.e., extension is provocative because it closes off the spinal canal and IVF
Typical aggravating/relieving factors for disc lesions
- can't sit for long periods
- lie on their tummy (prone) makes it better
- happiest to be 'gently on the move'
Crossed Straight Leg Raise
- rules in disc herniation
- pain in opposite side to SLR test
SIJ Pathology - Clinical Presentation
- joint naturally fibrosis
- incidence decreases in 50's and 60s
- most common 20's and 30's
- females
- history of micro/macro trauma
- no neurogenic symptoms
- has widespread area of pain (innervation of joint from muscles that cross it - psoas etc…) - non dermatomal - could be lots of areas in the leg but not below the knee
- SI & groin pain - mimics high lumbar pathologies
- glut. med weakness - defacilitated
SIJ Pathology - Causes
- stand/walk/run - transitioning from one position to another
- repeated microtrauma
- hypermobility
- pregnancy - causes laxity (hormones)
- yoga
- leg length discrepancy
- muscle balance
- acute trauma - MVA (brake injuries)
S1 Nerve Root versus Spondylolisthesis
- spondylolisthesis....
- translate L5 on S1 anteriorly
- occurs with area of lordosis (aggrevating factor)
- can become discogenic in nature
- functionally unstable:
- don't like flexion - feel apprehensive
- reverse spinal rhythm
- don't like extension really
hinging at a segment
What nerve do S 2, 3, 4 innervate?
S2-3-4 innervate - pudendal nerve (voluntary muscles of external sphincters - anus & rectum)
- pelvic floor muscles
- bladder sphincter
sensory to perineum (saddle area)