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66 Cards in this Set

  • Front
  • Back
Degeneration: Spondylosis Deformans
Annulus Fibrosis
Degeneration: Intervertebral Osteochondrosis
Nucleus Pulposes
Loss of disc space: Spondylosis Deformans
Minimal
Loss of disc space: Intervertebral Osteochondrosis
Prominent
Osteophytes: Spondylosis Deformans
Prominent
Osteophytes: Intervertebral Osteochondrosis
Minimal
Vacuum: Spondylosis Deformans
Annular
Vacuum: Intervertebral Osteochondrosis
Nuclear
What is highly specific for painful annular tears?
High Intensity Zone (HIZ)
Inflammatory Modic Change
Type I
Decreased signal intensity on T1
Increased signal intensity on T2
Type I Modic Change
Fatty Modic Change
Type II
Increased signal intensity on T1 and T2
Decreased signal intensity with fat suppression
Type II Modic Change
Decreased signal intensity on T1 and T2
Type III Modic Change
Which is the only Modic Change that can be seen on xray
Type III
< or = to 2 mm of endplate margin; asymptomatic
Normal discs
> 2 mm away from endplate margins; 50% of circumference
Most are asymptomatic
Disc Bulge
Base exceeds AP dimension; < 50% of circumference; most are asymptomatic
Disc Protrusion
Disc Protrusion that is <25% of circumference
Focal Disc Protrusion
Disc Protrusion that is >25% of circumference
Broad Based Disc Protrusion
AP dimension exceeds base; superior or inferior margin
Disc Extrusion
Which disc sequestration has an umbilicus?
Extrusion
Which disc sequestration has no connection?
Sequestration
Not responsive to conservative management
90% of focal lumbar disc abnormalities are ______ and _____?
Central and paracentral
90$ of disc contour abnormalities occur where in the lumbar spine? where in the cervical spine?
- L4/L5 and L5/S1 in the lumbar spine
- C5/C6 and C6/C7 in the cervical spine
Cervical disc herniations hit which roots?
Exiting nerve roots
- The nerve root below
Lumbar central and paracentral disc herniations hit which roots?
Transient/Descending nerve roots
- The nerve root below
Lumbar foraminal disc herniations hit which roots?
Exiting nerve roots
- The nerve root above
Synovial cysts are most common where?
L4/L5 facet joints
Narrowing of the interspinous space in the lower lumbar spine
Baastrup's Disease
(Kissing Spinous disease)
Osteoarthritis: Femoroacetabular Joint
- Non-uniform decrease in joint space; most prominent at superior lateral aspect
- Subchondral cysts
- Osteophytes
- Severe cases may require hip replacement surgery
- Malux coxae senilis
Where is osteoarthritis of the femoroacetabular joint most prominent?
Superior lateral aspect
Osteoarthritis: Femorotibial Joint
- Non-uniform decrease in joint space
- Medial > Lateral
- Better seen with weigh-bearing views
- Osteophytes
- Subchondral cysts
- Subchondral sclerosis
Osteoarthritis of the femorotibial joint is most common where?
Medial side
Osteoarthritis: Patellofemoral Joint
- Usually more pronounced on lateral side
- Patellar Tooth Sign
Patellar Tooth Sign
Osteoarthritis of Patellofemoral Joint
- Degenerative enthysopathic changes leading to irregular appearance of anterior surface of the patella
Patellar Tooth Sign is best seen on what view?
Sunrise view
Early softening of retropatellar cartilage in adolescents and teenagers
Chondromalacia Patella
Radiographic Presentation: Chondromalacia Patella
Usually radiographically absent, requires MRI
Osteoarthriis: Ankle and Foot
Ankle: Rare (except for post-trauma)
Calcaneus: enthesophytes
Osteoarthritis: Shoulder and Elbow
- AC Joint (common): leads to impingement and supraspinatus tear, can narrow subacromial space
- GH joint, elbow (rare)
Osteoarthritis of the wrist is most common where?
First carpal-metacarpal joint
Osteoarthritis of the hand is most common where?
Interphalangeal joints
What (2) nodes are associated with osteoarthritis of the hand? Where are they?
- Heberdeen's nodes: DIP joints
- Bouchard's nodes: PIP joints
Erosive Osteoarthritis
- Inflammatory variant of OA
- Middle aged females
- Bilateral, symmetric, DIP and PIP involement
Gull Wing Deformity
Erosive Osteoarthritis
- Combination of lateral osteophytes and central intra-articular erosions with surface invagination
Ossification of the anterior longitudinal ligament
DISH
What percentage of DISH patients also have Diabetes Mellitus?
20%
DISH is most common where?
T7 - T11
(2nd most common: cervical spine)
Diagnostic Criteria for DISH
- Flowing hyperostosis
- 4 contiguous segments
- Absence of facet DJD
- NO SI INVOLVEMENT
What does DISH look like in SI joints?
IT DOES NOT INVOLVE THE SI's!!!!!
Ossification of the posterior longitudinal ligament is most common where?
C2 - C4
OPLL can cause what?
Spinal canal stenosis
Syringomyelia
Neuropathic Arthropathy
- Large, fluid filed cyst in spinal cord; look for cloak like distribution of pain in shoulders
Licked candy stick appearance
Atrophic Neuropathic Arthropathy
- Bones become atrophied and taper down
Patterns of Hypertrophic Neuropathic Arthropathy
6 D's (3 Di's, 3 De's)
- Distended joint
- Dislocation
- Disorganization
- Density increase- Debris
- Destruction
Age: Synoviochondrometaplasia (SCM)
30 - 50
Primary SCM
- Idiopathic
- loose bodies are the same size
Secondary SCM
- Secondary to trauma/degeneration
- Loose bodies are different sizes
Clinical Features of SCM
Pain, swelling, crepitus, locking, grinding sounds
Age: Rheumatoid Arthritis
20 - 60s
(20 - 30s onset, diagnosis usually 10 years later)
Systemic Findings of Rheumatoid Arthritis
- Carpal tunnel syndrome
- Sjogren's syndrome (patient dries out)
- Vasculitis (Raynauds)
- Pleuropulmonary (pericardial disease)
Diagnostic Criteria for Rheumatoid Arthritis
1. Morning stiffness in and around joints lasting for at least one hour before maximal improvement
2. Soft tissue swelling of three or more joint areas observed by a physician
3. Swelling of the PIPs, MCPs or wrist joints
4. Symmetric swelling
Rat bite lesions
Rheumatoid Arthritis
- At the very edge of the bare area where there is no cartilage
Target Sites of Rheumatoid Arthritis
- Hand (MCPs, intercarpal joints, ulnar styloid)
- Foot
- Cervical Spine (atlantoaxial instability)
What nodes are present in Rheumatoid Arthritis? Where?
Haygarth's nodes in the MCPs