Degenerative

Question 1

Advantages of cervical disk replacement

Answer 1

No pseduoarthrosis
Preserved motion
Faster recovery
Lower re-operation rate

Question 2

Risk factors for prox junctional kyphosis after PSF for scoliosis

Answer 2

Older age
360 deg fusion
Fusion to the sacrum
Proximal fusion involving T1-3

Question 3

Intra-op EMG thresholds of pedicle screws

Answer 3

> 15 mA = well placed screw
<10 = breech may be present
<4-6 = screw is contacting nerve

Question 4

Complication assoc w/ minimally invasive diskectomy

Answer 4

Dural tear

Question 5

Relationship between pelvic incidence and lumbar lordosis

Answer 5

Should be equal

Question 6

Consequence of pelvic incidence > lumbar lordosis

Answer 6

Proximal junctional kyphosis

Question 7

What a positive contralateral SLR test is specific for

Answer 7

Axillary disc herniation

Question 8

Most common complication after a PSO

Answer 8

Pseudoarthrosis

Question 9

Most specific intra-op indicator of spinal cord injury

Answer 9

Transcranial motor-evoked potentials

Question 10

Risk factors for significant airway issues after anterior cervical surgery

Answer 10

Surgery longer than 5 hours
EBL > 300
Multilevel surgery at or above C3-4

Question 11

Levels most commonly affected by OPLL

Answer 11

C4-6

Question 12

Axial CT measurements indicating critical lumbar stenosis

Answer 12

AP canal diameter <10 mm

Cross-sectional area <100 mm2