This week on PA Study Sesh, we’ll be covering disorders of the spine and demystifying the dermatomes.
Cauda Equina
SURGICAL EMERGENCY
Symptoms
Urinary/bowel retention/incontinence
Saddle anesthesia
Decreased anal sphincter tone (no anal wink)
Tx: steroids (decrease inflammation) and emergent surgery
Spinal stenosis (pseudoclaudication)
Narrowing of spinal canal
60 y.o. (but can be congenital)
low back + BIL leg pain
increased with walking/standing (extension)
Dcreased with sitting/walking uphill (flexion)
Diagnose with Xray or MRI
Tx:
Injections
PT
Sy
Sprain/Strain
MOI: lifting/twisting (or whiplash)
Muscle spasms
Decreased ROM 2/2 pain
NORMAL NEURO
Tx:
Brief rest (1-2 days)
Nsaids scheduled
+/- muscle relaxants
pt for prolonged pain & to improve mechanics
majority recover by 4 weeks
Scoliosis
Females >10 y.o.
10 degrees of lateral curvature
Typically not painful
90% are to the right, left curve requires further evaluation
Look for shoulder or pelvic obliquity & LLD
Adams forward flexion exam
Xrays indiciated if scoliometer >5 degrees
Evaluate Cobb angle
Tx:
Observe if small
Brace at 20 degrees
Sy greater than 40 degrees
Kyphosis
Increased convex curvature of T spine
1/3 also have scoliosis
brace >60
Spondylolysis
Repetitive hyperextension injury (gymnasts, football players)
Defect of pars interarticularis
Most commonly L5-S1
X ray:
Scotty dog sign
Oblique view x ray
May progress to spondylolisthesis
Spondylolisthesis
Vertebrae slips forward
Possible step off
50% displacement = surgical
Conservative (same for spondylolysis)
Symptomatic
PT
Bracing
Happens at C2=hangman’s fx
Jefferson Fracture
C1 fx (Atlas)
Burst fx
Associated with axial loading (shallow dive or certain MVAs)
Compression fx
Fall from a height or non-traumatic
X-ray: vertebral height narrowing
Risk factors: chronic steroid use, tobacco use, postmenopausal, osteoporosis, low body weight
Point tenderness
Ankylosing Spondylitis (ankly=stiff, spondyl=spine, itis=inflammation)
White males 15-30
Axial skeleton & SI joint with increasing stiffness
Progresses from inferior to superior
AM stiffness with decreased ROM
Decreases with activity (most autoimmune arthropathies do)
Labs
Increased ESR
Negative ANA & RF (seronegative)
X ray:
Bamboo spine (squaring of vertebral bodies)
Tx:
NSAIDS
PT
TNF alpha blockers
Herniated Disc
Herniation of nucleus pulposus
Most often posterolateral
Pain in a dermatomal pattern
Increases with coughing, sitting
L5-S1#1
Physical Exam Tests: