midterm Flashcards
flaccidity
motor loss
paresis
weakness
anesthesia
sensory loss
parasthesia
sensory impairment
dysesthesia
pain
4 causes of peripheral nerve lesions
compression
trauma
systemic disorders
systemic edematous conditions
causes of peripheral nerve lesions - compression can happen in two ways…
internally (from bony callus, hypertonic mm or tumor)
externally (from crutches or prolonged leaning)
trauma that causes peripheral nerve lesions
crushing or severance wounds
systemic disorders causing peripheral nerve lesions
leprosy (most common)
systemic edematous conditions causing peripheral nerve lesions
pregnancy, hypothyroidism, diabetes, kidney & heart conditions
types of nerve lesions
neuropraxia
axonotmesis
neurotmesis
1st degree, compressions of nerve with local conduction block, no structural damage to axon/ tissue distal, block caused by local demyelination of nerve fibers, weeks/ months to recover, loss of motor function but sensory & autonomic fibers unaffected, prognosis good
neuropraxia
2nd degree, prolonged severe nerve compression, lesion at compression sight, degeneration of axons distal to injury, sensory & autonomic losses, prognosis good
axonotmesis
3rd-5th degree, severance of part of/ all of nerve trunk, degeneration, difficulty regenerating because of scar tissue/ edema/ bleeding, prognosis poor, surgical repair
neurotmesis
nerve lesions may be…
complete - all fibers affected
incomplete - some fibers affected
healing process - the lesions may be…
regenerating - repairing itself
permanent - nerve unable to regrow
peripheral nerve pain can be due to…
neuritis
neuralgia
causalgia
RSD
inflammation of nerve, sheath & CT affected, axon NOT affected, constant dull pain, paresthesia, dysesthesia, motor & sensory deficit - pathology / trauma, massage CI’d
neuritis
pain syndrome, abnormal sympathetic reflex, arterial spasm, burning pain, edema, mm wasting, osteoporosis may be present
reflex sympathetic dystrophy (RSD)
CI’s for hydro in RSD
tissue dystrophy or lack of vasomotor control
tumor composed of nerve cells, partial/ complete severance, poorly localized pain, altered sensation
neuromas
nerve pain, recurrent attacks or sudden, paroxysmal pain along distributing nerve, “lighting like”, no pathological change, “trigger zone” - trigeminal & intercostal - massage Ci’d in acute
neuralgia
AKA tic douloureux, painful tic, CN V, trigger zone may be lips/ face/ tongue, massage over trigger zone CI’d
trigeminal neuralgia
affects intercostal nerve - rib springing & massage over trigger zone CI’d
intercostal neuralgia