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