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Part III Radiology
Radiology Fx's, Dislocations, Tumors, Lines of Mensuration, Set-ups
| Question | Answer |
|---|---|
| Avulsion fracture's of C7 spinous? | Clay Shoveler's Fx |
| Avulsion fracture of C2 anterior inferior body involving the ALL and hyperextension mechanism? | Teardrop Fx |
| Avulsion fracture of inferior glenoid rim caused by anterior shoulder dislocation? | Bankhart Lesion |
| Fracture of the 4th and 5th metacarpals? | Barroom Fx |
| Fracture of the 3rd and 4th metacarpals? | Boxer's Fx |
| Fracture of any phalanx of the foot, especially the 1st and 5th digits? | Bedroom Fx |
| Horizontal fracture through a single vertebral body and posterior arch? (MC in lumbars, "Ghost Vertebra) | Chance or Seatbelt/Lapbelt Fx |
| Radiographic sign seen with a Clay Shoveler's Fx? | Double spinous sign |
| What muscles are associated with a Clay shoveler's Fx? | Flexion injury or repeated stress of the trapezius and rhomboids |
| Fracture of the distal Radius with posterior angulation of fragment, and a mechanism of falling on outstretched hand? (dinnerfork) | Colles Fx |
| Fracture of 3 or more bony segments? | Comminuted |
| Displacement/separation of a slightly movable joint, seen in symphysis pubis, skull sutures, and tibiofibular syndesmosis? | Diastasis |
| Large radiolucent fracture through the lateral surface of the iliac wing? | Duverny Fx |
| Fracture of the radius with dislocation of the distal radiolunar joint? | Galeazzi Fx |
| Seen in children younger than 10 yo, one side is broken the other is bent? | Greenstick Fx |
| Portion of bone driven into an adjacent area of bone by compressive force? | Imaction Fx |
| Bilateral fractures through the pedicles of C2 caused by hyperextension injury? | Hangman's Fx aka Bi-pedicular Fx aka Type IV spodylolisthesis |
| With Posterior shoulder dislocations the humeral head moves? | Inferior |
| With Anterior shoulder dislocations the humeral head moves? | Superior |
| Impaction fracture of the humeral head producing a "hatchet" deformity, caused by anterior shoulder dislocation? | Hill-Sack Defect |
| Bursting fracture of atlas, through the anterior and posterior arches of atlas caused by foreful axial compression on the skull? | Jefferson Fx |
| Fracture of the base of the 5th metatarsal due to traction on the peroneus brevis when foot is inverted and plantar flexed? | Jones or Dancer's Fx |
| Stress fracture of the 2nd and 3rd metatarsals? | March Fx |
| Ipsilateral double vertical fracture of the superior pubic ramus and ischiopubic ramus with fracture or dislocation of SI? | Malgaigne Fx |
| Fracture of the shaft of the ulna with displacement of the radius in any direction? | Monteggia Fx |
| Fracture that gives clinical signs but no radiographic evidence. Follow up X-rays show resorption of the fracture site indicating fracture? | Occult Fx |
| Fracture of a bone weakened by disease process. Usually a transverse proces in a long bone or total vertebral body collapse causing compression fracture? | Pathological Fx |
| A triangular shape of the lunate due to anterior lunate dislocation? | Pie Sign |
| Fracture of the distal fibula above the lateral malleolus with disruption of the distal tibiofibular ligament? (inversion injury) | Pott's Fx |
| Fracture of the distal radius with anterior angulation of the distal fragment. Usually due to direct blow or fall with the wrist forced into hyperflexion? | Smith or Reverse Colle's Fx |
| Fatigue fracture due to repetitive stress, usually weight bearing bones? | Stress Fx |
| Pellegrini-Stieda Syndrome/Phenomenom aka calcification of the MCL? | Wisp of Smoke Sign |
| Widened space between the scaphoid and lunate due to dislocation with associated ligamentous rupture? (rotatory subluxation of scaphoid) | Terry Thomas Sign aka Crescent Ring Sign |
| A type I Salter-Harris fracture occurs where? | Growth plate only |
| Type II Salter-Harris occurs where? | Growth plate and Metaphysis |
| Type III Salter-Harris occurs where? | Growth plate and Epiphysis |
| Type IV Salter-Harris occurs where? | Growth plate, Metaphysis, Epiphysis |
| Type V Salter-Harris occurs where? | Compression deformity of Growth Plate (most severe) |
| What are the differentials for a pathologic fracture? | Lytic Mets, Multiple Myeloma, Osteoporosis |
| What is the most common fracture of the elbow in adults? | Radial Head Fx |
| What is the most common fracture of the elbow in children? (elevated fat pads) | Supracondylar Fx |
| Hydroxyappetite Deposition Disease (HADD) most commonly occurs in what area? | Shoulder (humeral head) |
| Crescent/Rim sign, Bite sign, Wedge sign, are consistent with what disease? | Avascular Necrosis (AVN) |
| An atlanto-dental interspace > 5mm is consistent with what? | Down's Syndrome |
| Ground glass, smokey, wiped out, or a round lesion with sclerotic borders, MC in the femur? | Fibrous Dysplasia |
| Vascular calcification, subperiosteal and distal phalangy resorption, Salt and Pepper Skull (punched-out lesions), Rugger Jersey spine? | Hyperparathyroidism (HPT) |
| AVN of the humerus? | Snow Cap sign |
| Lincoln Log spine, H-shaped VB, Reynoud's phenomenom? | Sickle Cell |
| Increased alkaline phosphatase, Cotton wool skull, Ivory white VB, Picture Frame vertebra? | Paget's |
| Small, lucent lesion, pain is worse at night, but relieved by Asprin? | Osteoid Osteoma |
| AVN of Lunate? | Keinbock's |
| Pathologic VB fracture in a child? | Eosinophilic Granuloma (EG) |
| Most common benign tumor of the spine? | Hemangioma |
| Most common benign tumor of hand? | Enchondroma |
| Tumor of frontal sinus in young child? | Osteoma |
| Expansile, eccentric, lytic sub-articular lesion that extends to the edge and is painful, MC 20-40 yo? | Giant Cell Tumor |
| Expansile, eccentric, lytic fluid filled lesion, MC in distal femur? | Aneurysmal Bone Cyst |
| Central, expansile lytic lesion MC in metaphysis of humerus, fallen-fragment sign, and not painful? | Simple/Unicameral Bone Cyst |
| Avulsion fracture of the 1st metacarpal? | Gamekeeper's Thumb |
| Inverted Napoleon Hat sign, Bowline of Brailsford, Scotty Dog? | L5 Spondylolisthesis |
| Fracture of the distal radius? | Torus Fx |
| Fracture of the pubic arch? | Saddle Fx |
| Separation of the pubic symphysis? | Sprung Pelvis |
| AVN of metatarsal heads? | Freiberg's Disease |
| Juvenile discogenic disease, thoracic kyphosis of > 45 with an increased lumbar lordosis? | Scheuermann's Disease |
| This line detects spondylolisthesis? | George's Line |
| This grades spondylolisthesis? | Myderding's Method |
| AVN of femoral head usually seen in a young male, Crescent sign? | Legg-Calve-Perthes Dusease |
| Blastic lesion, MC in distal femur, spiculated periosteal reaction? | Osteosarcoma |
| Overhanging margin sign, Tophi, periarticular erosions, uric acid elevated, podagra, not present in spine? | Gout |
| AVN of subchondral bone, MC in knee, joint mice, teenage years? | Osteochondritis Dissecans |
| Unilateral facet dislocation? | Bow Tie Sign |
| Persistant notochord? | Butterfly Vertebra |
| Young men, stiff back in morning, Marie Strumpell, +HLA-B27, blurring of SI joints, syndesmophytes, dagger sign, shiny corner sign, trolly track spine, bamboo spine? | Ankylosing Spondylitis (AS) |
| Ossification of the anterior longitudinal ligament, Forestier disease? | DISH |
| Lytic lesion with lamellated or "onion skin" type periosteal reaction, MC male in teens? | Ewing's Sarcoma |
| Lytic lesion that crosses the growth plate? | Chondroblastoma |
| Superior Right Lung with left trachial deviation, aka Superior sulcus tumor, Horner's syndrome? | Pancoast Tumor |
| Basilar angle or Martin's Basilar Angle > 152 indicates? | Basilar Impression |
| The best line/most accurrate for basilar invagination? (Paget's) | McGregor's Line |
| Line from the hard palate to the opisthion (post. foramen magnum)? (>7mm = basilar impression) | Chamberlain's Line |
| Line from C1 tubercle to the odontoid? | ADI (adult = 1-3mm, Child = 1-5mm) |
| Posterior body margins are checked for alignment, suggests anterolisthesis or retrolisthesis if not smooth or continuous? | George's Line |
| Stress lines of the cervical spine, drawn at C2 and C7 posterior bodies, flexion intersects at C5-6, extension at C4-5? | Jackson's |
| Prevertebral soft tissues: Retropharyngeal (C4)> 7mm? Retrolaryngeal (C5)> 14mm? Retrotracheal (C6)> 22mm? | SOL (tumor, infection, hematoma) |
| Best method to evaluate scoliosis? | Cobb's method (endplates) |
| What is another scoliosis evaluation using the VB's? | Risser-Ferguson Method |
| Meyerding's Method grades what? | Spondylolisthesis % |
| Line drawn through sacral base. Perpendicular line from sacral promontory, if L5 is beyond the perpendicular line = spondylolisthesis? | Ullmann's Line |
| Eisenstein's Method < 15mm? | Spinal Canal Stenosis |
| Macnab's Line measures for what? | Facet Imbrication |
| Hadley's "S" curve measures what? | Subluxation or Facet Imbrication |
| Kohler's line measures what? | Protrusio Acetabuli |
| MC reason for Protrusio Acetabuli? | RA |
| Shenton's line measure's what? | slipped capital epiphysis |
| Femoral angle or Mickulicz's angle < 120? > 130? | < 120 = coxa vara, > 130 = coxa valga |
| Best line for fracture of fovea capitus? | Skinner's Line |
| Best line for SCFE? | Klein's Line |
| Boehler's Angle measures what? | Calcaneal Fx or Dysplastic calcaneus |
| AVN/degneration of tibial tuberosit? | Osgood Schlatter's |
| AVN/degneration of tarsal navicular? | Kohler's |
| AVN/degeneration of calcaneus? | Sever's |
| AVN/degeneration of medial tibial condyle? | Blount's |
| AVN/degeneration of scaphoid? | Preisser's |
| AVN/degeneration of capitulum? | Panner's |
| MC hip Fx? | Mid Cervical (inter-capsular) |
| Positioning: An RAO x-ray of the cervical spine views what IVF? | Right IVF |
| Positioning: An RAO of the lumbar spine views what pars? | Left pars |
| Positioning: An RAO of the SI joint views what SI? | Right SI |
| Positioning: An RAO views the same anatomy as what view? | Left Posterior Oblique (LPO) |
Created by:
palmerchiro101
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