Final Flashcards
Compression neuropathies
Ok
Biomechanical causes compression neuropathy
Space occupying-herniated disc, cyst
Degenerative causes-foraminal stenosis
Post traumatic-fracture, hematoma, compression from equipment
Mechanical-muscle spasm, pinching from external or positional forces
Systemic causes
Pregnancy, hypothyroid, diabetes
Epineureum
Fascicles, blood vessels, CT
Perineureum
Contain axons
Pathological changes
Microvascuar compression->ischemia
Thickened epineurium
Myeli thinning
Microtubules closure
Axonal degeneration
Neuropraxia nerve injuries
Focal damage of myelin fibers around axon
Least severe, days o weeks improve
Axonotmesis
Some disruption/injury to the axon itself
Myelin sheath remains intact
Regeneration is possible but months without a fill recovery
Neurotmesis
Disruption of axon and endometrium
Recover with axonal regeneration, surgery, may be no improvement
Know your dermatomes!
Want to know where the lesion is
Where will lesion be on MRI why am i ordering MRI-i think there is pinching that we will want to do something about
Person has this deficit
It’s this nerve root
Herpes in dermatome pattern
Herpes
Pain in 1 derm
Nerve
Pain down buttand leg
Not dermatomal -nothing down side of leg
Cervical nerve compression: bulging disc
Evenly bulging out gain weight lose height
Cervical comrpession: herniated disc
Protrusion-only a few cartilage rings are torn , no leakage of central material
Extrusion-cartilagerings have in a small area, nucleus purposes is able to flow out of the disc space
Most commonly the cervical disc ruptures __-___ causing compression of the nerve root as it exits the intervertebral foramen
Posterior laterally
What does cervical nerve root compression cause
Radiculopathy-pain caused y compression of the spinal nerve that radiates int he distribution of the defined nerve root
Spurring test
Extend and rotate the neck toward symptomatic side and look forexacerbation of radicularpain
CERVICAL RADICULOPATHY indicative of
Adson test
Elicited by having the patient elevate the chin and rotate the head toward the affected side while inspiring deeply; look for obliteration of radial pulse on affected side
Thoracic outlet syndrome
Hoffman test
Elicited by firmly grasping the middle finger and quickly snapping or flipping the dorsal surface, look for a quick flexion of both the thumb and index finger
Cervical myelopathy (cervical stenosis)
Purpling
High SPECIFICITY hold. Head down
Cervical compression
Comrpession test
Just push down
Cervical spine c2 what nerve root looking at
C3 bc go above vertebral body nerve root
Lumbar
Below
General treatment cervical comrpession
Anti inflammatory, Modification of activity, splinting, injections , PT OMM for 3-6 months OMM cant unpinch nerve
Surgical release is considered when non operative management fails
Cubical tunnel syndrome -operative decompression is probably ustified in all but the mildest cases to prevent nerve damage
Upper extremity compression
Radial, median, ulnar, musculocutaneous, axillary
Radial nerve entrapment : motor and sensation
Triceps brachii, anconeus, wrist extensors
Sensation to majority of dorsum of hand
Where entrap radial nerve
High on humerus
Radial tunnel
At wrist
High humerus radial
Wrist drop, weakness of elbow flexion (brachioradialis), tricep
4-5 months return
Radial tunnel radial nerve entrapment
From repetitive oratory movements like rowing, discus,racquet sports, heavy Manila labor
Pain and tenderness lateral epicondyle
Wrist drop or pain with resisted supination
At wrist
Superficial branch pinched between brachioradialis and ECRL during forearm pronation changes over posterolateral band
Why do distal neuro exam
Start distal and work proximal the figure out where it starts
46 yo pain numbness hand health no injury. What ask
Hobbies? Sports? New baby? Other symptoms?
Superficial radial nerve compression
Cheiralgia, paresthesia aka waternbergs
Numbness , tinging, burning, pain in SRN distribution, caused by compression, edema, surgical injury
Treat superficial radial nerve
Rest Avoidance of aggravating behaviors Stretching NSAIDS Counter-strain/muscle energy
Median nerve entrapment places
Ligament of struthers
Pronator syndrome
Anterior osseous syndrome
Caravan tunnel syndrome
Function median nerve
Forearm flexion and pronation
Wrist flexion and radial deviation
Thumb abduction and opposition
Index and middle finger abduction and flexion
Pronator syndrome
Occurs as the median nerve passse between the superficial and deep heads of pronating motions: pianists, fiddlers, baseball players, dentist, weight trainers
Symptoms pronator
Achy pain in the mid/proximal forearm, aggravating by repeated lifting
-may have sensory abnormality in the radial three and a half digits
-pain with resisted forearm pronation
Anterior interosseous syndrome
Deep motor branch of median n just distal to pronator teres which innervates flexors
Etiology anterior interosseous syndrome
Trauma, cast pressure, bulky tendinous origin of ulnar head of pronator teres, soft tissue masses, fibrous bands
Symptoms anterior interosseous
Ok sign, no sensory problems, weak flexion of index finger DIP and thumbs IP
Treat anterior interosseous
Elbow splinted in 90 flexion for 12 weeks
Gold standard diagnose carpal tunnel
EMG
Most common compression syndrome
Carpal tunnel
Treat carpal tunnel
NSAIDs, mfr, st, lymphatics, steroids injections if nothing working, wrist splitting in 30 extension , surgical release
Ulnar nerve where entrap
Cubical tunnel
Guy on canal
Ulnar nerve function
Innervates skin
Deep branch in hand->motor innervation for interosseous msucles and adductor pollicis
Superficial branchin hand-> sensory innervation to ring an pinky finger
Cubical tunnel syndrome
Medial elbow
Baseball pitches or elbow flexion , external compression against. Hard surface, thickened cubical tunnel retinaculum
Sx ulnar nerve entrap
Paresthesia tinea sign at elbow elbow flex and wrist ext
Froment sign
Ulnar nerve
Thoracic outlet syndrome
Brachial plexus compressed
Test for TOS
East/roos, adson, wrights hyperabduction
L1,l2
Hip flexion
Meralgia paresthetica
Lateral femoral cutaneous
Compression under inguinal ligament canal
-athletics, obesity, belt,
Symptoms lat femoral cutaneous
Numbness or burning pain on anterolateral thigh
Hyperesthesia dont wnt to put things in pocket
Asis tinel+
Common fibular nerve compression
L4-2s,
Leg hooked under rail, squatting, ankle sprain, lithotomy position during birth
Symptoms common fibular nerve compression
Pain along proximal third of lateral leg
Foot drop with a slapping gait
Exacerbated during plantarflexion and inversion of the foot
Treat fibular n compression
Posterior fibular head HVLA or ME
ME on gastroc/soleus biceps femoris
Anterior tarsal tunnel syndrome
Deep fibular nerds L4-s2
Deep fibular nerve comrpession at the inferior extensor retinuaculum
Symptoms anterior tarsal tunnel
Pain over dorsomedial aspect of foot and worse at rest
Weakness of extensor digitorum breves
Etiology anterior tarsal tunnel
Trauma, talonavicular dyssfctunion
Treat anterior tarsal
Remove compressive forces
Myofascial release or extensor retinaculum
Traction tug of talonavicular joint
Hiss whip for navicular , cuneiforms, 1st and 2nd metatarsal
Symptoms lateral femoral cutaneous
Numbness or burning pain on anterolateral thigh, hypersthesia to the point of not putting anything in pockets, tropic skin changes later on
Tinel 1cm medial and inferior to ASIS
Tarsal tunnel
Compression of posterior tibial nerve in tarsal tunnel behind the medial malleolus with flexor retinaculum
Nerve function tarsal tunnel
Pain on plantar side of foot tingling burning
Treat tarsal tunel
MFR, HVLA , NSAIDS< US< PT, acupuncture
Hoffman+
Central nervous system problem
Ok sign
Median nerve
Spinal disc disease: initial herniation
Painful, disc slowly shrivels away in few days-weeks most resolve without treatment within 2-6 weeks
9)% back to normal regardless of treatment
Spinal disc disease 10%
Have gotten chronic back pain, spasm, stiffness,
Weak back ligaments-radiating pain down legs, predisposes to further injury, change in biomechanics, accelerated osteoarthritis and stress on other joints
Treat spinal disc disease
Stretching, anti inflammatories/pain meds, muscle relaxers, PT, BLT therapy, prolotherapy to strengthen ligaments
Pt presents to FM clinic with 2 month HZ of low back and right sharp, burning hip pain that radiates down their leg. No recent injuries or MVA they can remember. Denied numbness or weakness, incontinence, no other inciting factors known/revealed
Point to pain-point right SI joint and drawl a line right lower SI joint straight down back of leg to posterior kneee
Low back pain with sciatica -nerve root in tact so not radiculopathy
Radiculopathy
Compression nerve root
Myelopathy
Compression spinal cord so bilateral symptoms
Neuropathy
Result of damage to peripheral nerves, often causes weakness numbness and pain, usually in hands and feet
Sciatica
Pain emerging from the low back felt along distribution of sciatic nerve
Symptom not a cause
Not sciatic nerve comrpession!!!!
Cause sciatica
Usually sacroiliac ligament weakness
Nerves innervation SI capsule refer pain to spinal cord segment and ay radiate, but not in ___ patter
Dermatomal
Treat sciatica
Strengthen ligaments was-DONT USE STEROIDS
Sciatica clincial
Pain with walking but long periods of sitting also
Pain when getin up from seated position, espicially if they have been sitting with their legs crossed
They tend to use the armrests or their thighs to push themselves up to the standing position from being seated