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92 Cards in this Set
- Front
- Back
1st LUMBAR ROOT - Cause
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- neoplasm
- disc lesion often secondary to lower level fusions |
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1st LUMBAR ROOT - Area of Pain
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forbidden area, outer buttock, trochanter & groin
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1st LUMBAR ROOT - Dural Signs
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- +ve neck flexion + slump
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1st LUMBAR ROOT - Articular Signs
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- flexion most often affected depending on size
- extension also may be affected |
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1st LUMBAR ROOT - Conduction Signs
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- motor - none
- sensory - hypoaesthesia just below the medial half on inguinal ligament |
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1st LUMBAR ROOT - Differential Diagnosis
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Neoplasm
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1st LUMBAR ROOT - Treatment
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- refer back to physician initially
- if OK, traction |
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2nd LUMBAR ROOT - Cause
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- 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 |
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2nd LUMBAR ROOT - Pain
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upper lumbar, anterior thigh to knee
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2nd LUMBAR ROOT - Dural Signs
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neck flexion
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2nd LUMBAR ROOT - Articular Signs
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- flexion most affected depending on size
- extension also affected |
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2nd LUMBAR ROOT - Conduction Signs
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- motor - weak hip flexion
- sensory - anterior thigh |
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2nd LUMBAR ROOT - Nerve Root Contribution
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• femoral and obturator nerve
• may have positive prone knee bend |
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2nd LUMBAR ROOT - Reflex
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untestable
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2nd LUMBAR ROOT - Differential Diagnosis
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- upper lumbar or femoral neoplasm
- meralgia paraesthetica - claudication |
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2nd LUMBAR ROOT - Treatment
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traction
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3rd LUMBAR ROOT - Cause
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• large IVD (most likely)
• stenosis |
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3rd LUMBAR ROOT - Pain
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- mid lumbar, upper buttock, whole anterior thigh & knee, medial knee to just above the ankle
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3rd LUMBAR ROOT - Dural Signs
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- prone knee flexion
- occasionally +ve SLR |
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3rd LUMBAR ROOT - Articular Signs
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extension major motion loss
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3rd LUMBAR ROOT - Conduction Signs
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- motor - slight weakness of psoas, grosser loss of quadriceps
- sensory - hypoaesthesia inner knee & lower leg |
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3rd LUMBAR ROOT - Reflex
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- knee jerk absent or diminished
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3rd LUMBAR ROOT - Differential Diagnosis
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- hip or knee arthritis
- loose body - femur neoplasm - claudication - long saphenous neuritis - L3 metastases |
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3rd LUMBAR ROOT - Treatment
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- neutral or extension protocol
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How common is a lesion of L4?
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40% of all nerve root problems are at L4
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4th LUMBAR ROOT - Clinical Presentation
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- 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 |
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4th LUMBAR ROOT - Pain
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- mid lumbar or iliac crest, inner buttock, outer thigh & over the leg to the inner foot & great toe
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4th LUMBAR ROOT - Dural Signs
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SLR, bilateral & crossed-SLR & neck flexion
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4th LUMBAR ROOT - Articular Signs
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marked deviation common as is gross limitation of one side flexion
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4th LUMBAR ROOT - Conduction Signs
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- motor - weak dorsiflexion
- sensory - hypoaesthesia anterior & medial lower leg & great toe |
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4th LUMBAR ROOT - Key Muscle
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tibialis anterior w/ dorsi flexion reflex
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4th LUMBAR ROOT - Reflex
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- tibialis anterior & posterior
- absent or diminished |
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4th LUMBAR ROOT - Differential Diagnosis
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- spondylolisthesis or claudication
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4th LUMBAR ROOT - Treatment
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- neutral or extension protocol
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5th LUMBAR ROOT - Cause
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- compressed by the 4th as well as the 5th disc
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5th LUMBAR ROOT - Pain
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- SI area, lower buttock, lateral thigh & leg, middle 3 toes & medial sole of foot
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5th LUMBAR ROOT - Dural Signs
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- unilateral SLR & neck flexion
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5th LUMBAR ROOT - Articular Signs
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- may deviate during flexion otherwise as expected for size
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5th LUMBAR ROOT - Conduction Signs
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- motor - weakness of peroneal, EHL & hip abductors
- sensory - hypoaesthesia outer leg & middle 3 toes & medial sole |
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5th LUMBAR ROOT - Key Muscles
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- extensor hallucis longus and peronei
- hamstrings/adductors - test great toe extension |
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5th LUMBAR ROOT - Reflex
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- peroneus longus, EHL & EDB absent or diminished
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5th LUMBAR ROOT - Differential Diagnosis
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- peroneal neuritis
- claudication - loose body or meniscal derangement at knee with pressure on tibial nerve - spondylolisthesis - trochanteric syndromes |
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5th LUMBAR ROOT - Treatment
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- neutral or extension protocol
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1st SACRAL ROOT - Cause
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- compressed usually by 5th disc
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1st SACRAL ROOT - Pain
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- SI area, inner buttock, posterior thigh & occasionally heel & lateral foot & 2 toes
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1st SACRAL ROOT - Dural Signs
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- SLR & neck flexion
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1st SACRAL ROOT - Articular Signs
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- as expected for size
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1st SACRAL ROOT - Conduction Signs
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- motor - weakness of plantarflexion, hamstrings & peroneii
- sensory - hypoaesthesia outer leg & foot & lateral 1-2 toes |
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1st SACRAL ROOT - Key Muscles
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- ankle plantar flexion
- ankle eversion - hip extension |
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1st SACRAL ROOT - Reflex
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- peroneus longus, EHL, EDB absent or diminished
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1st SACRAL ROOT - Differential Diagnosis
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- sacroilitis, claudication, spondylolisthesis
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1st SACRAL ROOT - Treatment
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- neutral or extension protocol
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2nd SACRAL ROOT - Pain
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- buttock, posterior thigh to heel
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2nd SACRAL ROOT - Dural Signs
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- SLR & neck flexion
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2nd SACRAL ROOT - Articular Signs
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- as expected for size
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2nd SACRAL ROOT - Conduction Signs
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- motor - weakness of plantarflexion, hamstrings & hip extensors
- sensory - hypoaesthesia posterior thigh & medial calf to heel |
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2nd SACRAL ROOT - Key Muscles
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- test knee flexion
- achilles - hamstrings |
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2nd SACRAL ROOT - Reflex
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- triceps surae, hamstring, gluteus maximus absent of diminished
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2nd SACRAL ROOT - Differential Diagnosis
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- sacroilitis, claudication, spondylolisthesis
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2nd SACRAL ROOT - Treatment
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- neutral or extension protocol
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3rd SACRAL ROOT - Pain
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- inner groin, medial thigh to knee
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3rd SACRAL ROOT - Dural Signs
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- none or neck flexion
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3rd SACRAL ROOT - Articular Signs
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- as expected for size
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3rd SACRAL ROOT - Conduction Signs
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- motor - none
- sensory - hypoaesthesia medial thigh |
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3rd SACRAL ROOT - Differential Diagnosis
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- adductor strain or osteitis pubis
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3rd SACRAL ROOT - Treatment
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- neutral or extension protocol
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4th SACRAL ROOT - Pain
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- lower sacral, peroneal & genital areas
- saddle area paraesthesia |
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4th SACRAL ROOT - Dural Signs
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- none or neck flexion
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4th SACRAL ROOT - Articular Signs
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- may or may not have gross limitation of all movements
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4th SACRAL ROOT - Conduction Signs
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- motor - bladder, bowel and/or genital dysfunction
- sensory - lower sacral, peroneal & genital areas - saddle area |
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4th SACRAL ROOT - Reflex
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- anal wink reduced
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4th SACRAL ROOT - Differential Diagnosis
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- genital & bladder dysfunctions but always assume a root palsy
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4th SACRAL ROOT - Treatment
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- refer to physician - careful traction
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Most significant hindrance to nerve conduction
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A lack of O2 to a nerve root is more significant in decreasing conduction than is mechanical pressure.
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Important Notes
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- 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 |
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Sign of the Buttock - S/S
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- 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 |
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Sign of the Buttock - Causes
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- 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  |
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LE Myotomes
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• L2: Hip flexion
• L3 :knee extension • L4: Ankle dorsiflexion • L5: Great toe extension • S1: AnkIe plantar flexion, ankle eversion, hip extension • S2: Knee flexion |
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Which 2 vertebral discs could cause an L1 nerve root lesion?
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• 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 |
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Why could there be evidence of cord involvement OR cauda equina involvement with an L1 nerve root?
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• 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 |
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What are identifying factors of metastatic lesions (as compared to myofascial or articular?)
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• unremitting night pain
• weight loss • will have a problem identifying ‘causes’ of pain • weightbearing activities painful because trabecular bone is affected |
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How will you till the difference between dural and myofascial involvement during the prone knee bend for femoral nerve mobility?
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• dura will cause symptoms below 90° (i.e., ~80°)
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Fatigueable Weakness
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Can generate one strong contraction, it slowly fades away then 2nd contraction only have 1/2 strength… slowly declining
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What would a hypotonic patellar tendon reflex tell you about L3 involvement?
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• 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) |
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L3 Nerve Root versus Hip OA
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• 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 |
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Vascular Claudication versus Spinal Stenosis
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• 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 |
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Typical aggravating/relieving factors for disc lesions
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- can't sit for long periods
- lie on their tummy (prone) makes it better - happiest to be 'gently on the move' |
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Crossed Straight Leg Raise
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- rules in disc herniation
- pain in opposite side to SLR test |
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SIJ Pathology - Clinical Presentation
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- 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 |
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SIJ Pathology - Causes
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- 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) |
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S1 Nerve Root versus Spondylolisthesis
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- 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 |
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What nerve do S 2, 3, 4 innervate?
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S2-3-4 innervate - pudendal nerve (voluntary muscles of external sphincters - anus & rectum)
- pelvic floor muscles - bladder sphincter sensory to perineum (saddle area) |