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117 Cards in this Set
- Front
- Back
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Which ligamentous injuries are associated with transcaphoid-perilunate dislocation?
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-scapholunate
-radiocapitate |
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What ligamentous injuries are associated with Monteggia fracture?
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-radioulnar
-collateral ligaments of the elbow |
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Which side of the SI joint in destruction more prominent on in infectious sacroliliitis?
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the iliac side
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Which tendon may become entrapped in Galeazi fracture?
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Extensor carpi ulnaris
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Common locations for chondroblastoma?
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Epiphyses of long bones, usually tibia, femur, and humerus
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Typical age group for chondroblastoma?
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10-25 years
M>F |
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What % of tarsal coalitions are bilateral?
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50%
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What the name for spontaneous necrosis of the scaphoid without trauma?
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Preiser's disease
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Discoid mensicus is more common (medially/laterally)?
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Laterally
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Two different types of Lisfranc injury?
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Homolateral
Divergent |
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Lisfranc ligament achors_________________
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second metatarsal to medial cuneiform
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Which reactive inflammatory spondyloarthropathy more often presents with osteopenia?
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Ankylosing spondylitis
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With scapholunate widening consider...
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DISI
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SLAP tear imaging findings?
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-lateral-superior labral undercutting
-defect between bony glenoid and superior labral margin |
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associations with PLL tear?
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failure of longitudinal arch
failure of spring ligament medial malleolar periostitis |
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MRI findings of patellar dislocation?
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Bone contusions of lateral femoral condyle and medial patellar facet
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What accounts for the T2 signal in a myxoma?
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Abundant mucoid material
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Four stages of lunate instability
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- scapholunate dissociation
-perilunate dislocation -disruption of radiotriquetral/lunotriquetral ligament - lunate dislocation |
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"kissing contusions" in ACL tear
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lateral femoral condyle and posterior tibial plateau
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What is the DDx of a cyclops lesion?
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Focal PVNS
Synovial hemangioma |
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What is a cyclops lesion?
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A dense fibroconnective vascular lesion from repetitive microtrauma across the intercondylar notch. Often associated with prior ACL repair. blocks extension of the knee.
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What makes up the IT band?
Where does it insert? |
gluteus medius, gluteus maximus, tensor fascia latae
Gerdy's tubercle |
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Findings in knee with hemophilia?
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-widened intercondylar notch
-square patella -epiphyseal overgrowth low synovial MR signal |
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What chromosomal abnormality is associated with Madelung deformity?
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Turner
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Hemorrhage from what two arteries typically associated with open-book pelvic fracture?
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internal pudendal
superior gluteal |
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Where do the majority of radial meniscal tears occur?
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posterior horns
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What inserts upon the lesser trochanter?
What is the significance of an avulsion fracture here? |
-iliopsoas
-highly suspicious for pathologic fracture |
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Three types of neurofribroma
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-localized
-diffuse -plexiform |
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What is Fong disease?
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hypoplastic patella
posterior iliac horns nail dysplasia dislocation of radial heads renal dysplasia aka hereditary osteo-onycho dysplasia |
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What angle defines deficient acetabular coverage?
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Center-edge angle of <25 degrees
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DDH is associated with labral ear in which location
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anterosuperior
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Causes of atlantoaxial subluxation?
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trauma
CPPD RA Down syndrome |
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Quadrilateral space syndrome?
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Atrophy of teres minor and deltoid
compression of axillary nerve and circumflex humeral artery |
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boundaries of quadrilateral space?
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long head biceps
teres minor teres major humerus |
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suprascapular notch neuropathy?
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atrophy of supra and infraspinatus
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spinoglenoid notch neuropathy?
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infraspinatus atrophy
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Most common type of meniscal tear associated with a meniscal cyst?
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Horizontal tear
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Most common type of meniscal tear associated with DJD?
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horizontal tear
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boundaries of a baker's cyst?
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semimembranosis and medial gastrocnemius
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What location of meniscal tear often associated with a Baker's cyst?
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posterior horn of medial meniscus
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What is more common, anterior or posterior sternoclavicular dislocation?
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anterior
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Most common soft tissue sarcoma in adults?
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MFH
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1.Schwannoma
2. Neurofibroma |
1. eccentric, arise from epineurum
2. Central |
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most common carpal coalition
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lunotriquetral
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1.Ground-glass skull
2. cotton-wool skull 3. hair-on-end skull 4. Salt-and-pepper skull |
1. Fibrous dysplasia
2. Paget's 3. Thalassemia 4. Hyperparathyroidism |
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Tear of MCL most commonly at femoral or tibial orgin?
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femoral
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Popliteal artery entrapment
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accessory slip of medial head of gastrocnemius causes claudication
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describe appearance of calcific myonecrosis
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plate-like calcifications almost exclusively in the anterior compartment of the lower leg. sequelae of trauma - it does not represent bone formation
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Short DDx of expansile sacral lesion?
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Chordoma
Chondrosarcoma Giant cell tumor ABC |
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What muscles inserts on the ASIS?
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Sartorius
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What muscles inserts of the AIIS?
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Rectus femoris (straight head)
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What muscle inserts on the lesser trochanter?
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iliopsoas
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What muscle inserts on the ischial tuberosity?
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hamstrings
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What inserts on the greater trochanter?
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gluteus muscles
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What inserts on the superior acetabulum?
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rectus femoris (reflected head)
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What inserts on the apophysis of the iliac crest?
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abdominal musculature
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What inserts on the pubic symphysis?
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adductor muscles
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Parosteal sarcoma
Periosteal sarcoma |
metaphyseal
diaphyseal |
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What % of scaphoid fxs result in nonunion?
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~95%
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What type of dwarfism only affects one side?
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chondrodystrophia calcificans congenita
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What is 'trident hand?'
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Divergence of third and fourth fingers in achondroplasia
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What is the name of the additional view to evaluate sacroiliitis?
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Ferguson view - tube angulated 25-30 degrees in cephalad direction
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What is Trevor disease?
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epiphyseal hemimelica dysplasia
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How is flourosis different from other conditions that cause dense bones?
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Dense osteophytes
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What accessory muscle in the lower extremity often presents with tarsal tunnel syndrome?
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The accessory flexor digitorum longus
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What is Felty syndrome?
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RA, splenomegaly, leukopenia
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Which side is DDH more common on?
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Left because vertex position constricts left knee
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Tinel's SIGN and Phalen's TEST
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Tinel's sign - tingling in median nerve distribution
Phalen's test - flexing wrist for 60 s to reproduce tingling in median nerve distribution |
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What is pulvinar?
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fibrofatty tissue that accumulates in the acetabulum in DDH
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AVN of a vertebral body
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Kummel's disease
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What inserts on the lateral calcaneus
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extensor digitorum brevis
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Segond
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avulsion of laterial tibial plateau - acl injury
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reverse segond
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avulsion of medial tibial plateau - pcl injury
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In a bennet fracture, what stabilizes the nondisplaced triangular fragment
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deep anterior oblique ligament aka volar beak ligament
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When you suspect SCFE, what view should you obtain?
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frog-leg
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What is the most severe consequence of SCFE?
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chondrolysis
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Infantile blount versus adolescent
Which is more common |
Infantile - more often bilateral, more common
Adolescent - more often causes pain |
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What is Little-Leaguer's elbow?
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Medial epicondyle apophysitis
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What attaches to the posterior ring of C1?
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Rectus captitis muscle
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What is a Buford complex?
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Congential abscence of anterior-superior labrum with cord-like middle glenohumeral ligament.
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What type of cancer develops in a draining sinus tract in chronic osteomyelitis?
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SCC
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What does it mean when a patient with Paget's disease has a sudden rise in AlkPhos?
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sarcomatous degeneration
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ligament torn in Gamekeeper's thumb?
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ulnar collateral ligament
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What is more aggressive parosteal osteosarcoma or perisoteal osteosarcoma?
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periosteal osteosarcoma
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What do you seen in the hand in Flippel-Feil
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Hypoplasia of first metacarpla bone and navicular
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What anchors the acapula to the spine in Sprengel deformity
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Omovertebral bone
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Cutaneous lesion associated with ostepoikilosis?
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Dermatofibrosis lenticularis dysplasia
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Three associations with osteopoikilosis
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scleroderma, cleft palate, dwarfism
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What is osteitis of Garre?
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Uncommon manifestation of infection producing sclerosis without bone destrustion or sequestration
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Why is hoffa's fat pad susecptible to primary malignancy?
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It contains synovial tissue
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Thryoid acropachy verusus HOA?
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Thyroid acropachy is painless
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Classification of femoral head fractures?
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Pipkins - describes fx relative to fovea capitis
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KNEE
Extra-articular cysts Intra-articular |
popliteal, meniscal, ganglion
Meniscal or ganglion |
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Typiucal direction of proximal tibiofibular syndesmosis dislocation?
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anterolateral
Parachuter leg |
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The presentation of neuropathic joint in the upper extremnity is associated with what?
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syringomyelia
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Is Ollier's typically unilateral or bilateral?
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Unilateral
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Which part of the spine is not affected in psoriatic arthritis as opposed to ank spond?
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annulus
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Do patients with giant cell of the tendon sheath present with pain?
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No
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What is the rotator interval?
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between supraspinatus and subscapularis - contains long head of biceps
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If you suspect Lisfran imjury but cannot see it, what view should you obtain?
What vascular structure may be injured in Lisfranc? |
standing lateral
dorsal pedis artery |
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boutonniere deformity cause?
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avulsion of extensor allows for abnormal flexion at PIP
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Lofgren's syndrome?
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Arthralgia, erythema nodosum, hilar node enlargement
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prognosis of synovial cell sarcoma?
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bad
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arcuate sign
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avulsionof proximal fibular head
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1. cranial settling
2. platybasia 3. basilar invagination |
1. C1 is too far down on C2 - RA
2. abnormal flattening of skull base 3. odontoid too far up in foramen magnum |
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Origin and insertion of ulnar collateral ligament in the elbow?
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O - inferior medial epicondyle
I - sublime tubercle/medial coronoid process of ulna |
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What is SAPHO syndrome?
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Synovitis, acne, pustulosis, hyperostitis, and osteomyelitis
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Treatment of lipoma arborescens
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synovectomy
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Ledderhose disease
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plantar fibromatosis
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findings on plataris tendon tear
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fluid between soleus and medial gastrocnemius
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Swiss cheese bone
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angiosarcoma
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ddx radial deficiency?:
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Holt Oram (ASD) - triphalangeal thumb
TAR (thrombocytopenia) - hypoplastic thumb Fanconi's anemia |
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most common place for CPPD?
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lunotriquetral ligament
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What is the classic appearance of CPPD on a knee x-ray?
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patellofemoral narrowing
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DDx of rapid hip DJD
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rapidly progressive DJD
AVN analgesic hip |
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What is within the 'vacuum' in 'vacuum phenomena?'
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nitrogen
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"double contour sign" on US?
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Gout
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