Spine Flashcards
Epidural abscess
-reasons for iv abx failure
IVDA Dm Age older than 65 CRP higher than 115 WBC greater than 12.5 Steph aureus
Approach for sx for lateral disc herniation
Far lateral approach
Advantage of interbody fusion over posterolateral fusion
Improved neuroforaminal height
Complication of osteopenia and fusion
Pedicle screw cutout
Complication of long instrument fusions, especially to sacrum and pelvis
Proximal junctional kyphosis
Complication if spine instrumented in hypolordotic position
Sagital imbalance
PT with forward lean and lack ability to extend spine to stand upright
Complication of noninstrumented fusions
Pseudoarthrosis
What measurement is always constant in spine?
Pelvic incidence
Sacral slope
Line parallel to S1 endplate
Second horizontal line
Angle between 2 lines
Pelvic tilt
Line center of s1 endplate to center of fem head
Second vertical line intersecting fem head
Pelvic incidence
Sacral slope plus pelvic tilt
Chance fracture
- mech of injury
- hallmark on ct
Flexion distraction injury
Axial split of pedicle on sagittal ct
Needs surgery to prevent deformity
Rick factor for pathological fracture
Hx of radiation
Advantage of minimally invasive over open transformaminal interbody fusion
Shorter hospital stay
Percentage of patients still with dysphasia 1 year after acdf
10%
What factors play a role in diskogenic back pain
TNF alpha, il-1, mmp
What is most biomech fusion of as junction
C1-c2 transarticular screw
Moa of pth in tx of osteoporosis
Stimulates osteoblastic bone formation and dec osteoblastic apoptosis
Triggered Emg thresholds and pedicle screw placement
Greater than 15ma
9-10ma
Less than 4ma
Well placed pedicle screw
Breach of pedicle but screw not hitting neural structure
Screw contacting neural structure
Scoliosis sx for PT
Younger than 50?
Older than 50?
Increasing coronal plane deformity
Pain and disability
Tx for burst fx with no neuro defect and no PLL injury
No surgical
