Selective Dorsal Rhizotomy

Question 1

What is the pathophysiology of spasticity?

Answer 1

happens when there is an imbalance between excitatory and inhibitory impulses to the alpha motor neuron

Question 2

Which treatment can be used for obturator to prevent hip dislocation and acts like a nerve block?

Answer 2

phenol block

Question 3

t/f, sdr can help with upper extremity spasticity only

Answer 3

false, can only help decrease lower extremity spasticity only

Question 4

Who is a candidate for SDR?

Answer 4

at least 2 years of age (2-4 is ideal), dx of spastic diplegia or quadriplegia or hemiplegia, no cerebellar damage, and no severe damage to basal ganglia on MRI

Question 5

What are movements to avoid after SDR surgery?

Answer 5

spinal rotation, lateral sidebending of spine, hip flexion past 90 degrees, gentle hamstring stretching that stops at back pain

Question 6

t/f, SDR requires intense PT after surgery

Answer 6

true, requires 4-5x per week for 6 months and then 2x per week for 6 months after that

Question 7

What term describes sustained muscle contractions that cause twisting and repetitive movements or abnormal postures

Answer 7

dystonia

Question 8

Which term describes rapid, involuntary, irregular and purposeless movements

Answer 8

chorea

Question 9

Which term describes slow, writing movements primarily affecting the distal limbs?

Answer 9

athetosis

Question 10

Which term describes irregular and discoordinated movements with typically an inability to co-activate muscles appropriately?

Answer 10

cerebellar ataxia