week 4

Question 1

what is a Gibbus deformity

Answer 1

a hump or protuberance- pronounced, angulated thoraco/lumbar kyphosis

Question 2

what is the “no mans land of the hand”

Answer 2

a term for the fibrous sheath of the flexor tendons of the hand, specifically in the zone from the distal palmar crease to the proximal ITP jt

Question 3

what is apposition

Answer 3

the amount of end to end contact of the fracture

Question 4

what is a torus or buckle fracture

Answer 4

when the cortex of the bone collapse without breaking

Question 5

what is callus

Answer 5

a bony and cartilaginous material forming a connective bridge across a fx during repair

Question 6

what is the difference between radiodense and -lucent

Answer 6

dense/opaque absorb more-white

lucent more permeable = more black

Question 7

what is a common presentation of costochondritis

Answer 7

aka Tietze syndrome- sudden or gradual onset of pain on ant. chest wall

Question 8

what is the characteristic deformity with a Colles fracture

Answer 8

“dinner fork deformity” of the radius

FOOSH c/ wrist ext

Question 9

what is the characteristic deformity with a Smith fracture

Answer 9

“garden spade deformity” of the radius

FOOSH c/ wrist in flex

Question 10

what is a Bennett fracture

Answer 10

two part intra-articular fx of the base of the 1st MCP- displaced proximally by APL

Question 11

what is a felon infection

Answer 11

an abscess in the pulp space of the distal phalanx

Question 12

what is a tuft fracture

Answer 12

fx of distal phalanx usually crush or sheer force; ass. c/ nail bed lacerations

Question 13

what is the most common type of malignant bone tumor

Answer 13

osteosarcoma “sun ray appearance” on x-ray

Question 14

what orthopedic neoplasm has a peak incidence in the 5th and 6th decade, is common in the knee, shoulder, pelvis and spine and shows cortical thickening and stippling consistent c/ cartilage deposition

Answer 14

chondrosarcoma

Question 15

what is a Ewing sarcoma

Answer 15

small blue cell tumor. children and young adults. pain and fever. pelvis, knee, proximal humerus and femur; destructive, frequently diametaphyseal lesion. lytic appearance

Question 16

what orthopedic neoplasm typically effects females 20-40 with pain or pathologic fracture common in the knee, vertebra, distal radius, and sacrum

Answer 16

giant cell tumor

metaphyseal lytic lesion extending to the epiphysis

Question 17

how does an enchondroma present

Answer 17

pain or pathologic fx; benign cartilaginous tumor commonly found in the metaphyses pf long bones of the hand

Question 18

what kind of neoplasm usually presents in late adolescence as a pain free mass and is more common in males- cartilagenous cap

Answer 18

osteochondroma

Question 19

what are the Ottawa Rules for x-ray indications for the knee

Answer 19

age over 55yrs
isolated patellar bony tenderness
fibular head tenderness
inability to flex knee 90 deg
inability to bear weight 4 steps