Forearm and wrist Fx

Question 1

Barton Fx

Answer 1

An intra-articular Fxof the dorsal rim of the distal radius, usually resulting in subluxation of the radial carpal joint w/ the fx site fragment

Question 2

Chauffeur’sFx

Answer 2

( Backfure , Hutchinson and Lorry driver’s Fx ) oblique fx of the radial styloid caused by twisting or snapping-type injury;

Question 3

Chisel Fx

Answer 3

Incomplete, usually involving medial head of the radius, w/ fx line extending distally about 1/2 inch.

Question 4

Colles Fx

Answer 4

a Fx of distal radius, either articular or nonarticular, w/ dorsal angulation of the distal fragment producing a silver fork deformity; generally associated w/ a fx of the ulnar styloid.`

Question 5

Corner Fx

Answer 5

a small bucket-handle-appearing fx in the distal metaphyseal corner in a young child, often associated w/ child abuse

Question 6

De Quervain Fx

Answer 6

combination of a wrist scaphoid fragment and lunate.

Question 7

Dye-punch Fx

Answer 7

an Intra-articular fx of the ulnar (volar) portion of the distal radius, usually caused by direct impaction of the lunate into the lunate fossa of the distal radius.

Question 8

Essex-lopresti Fx

Answer 8

a comminuted radial head fx w/ an injury to the distal radiounlnar joint due to disruption of the interosseous membrane. which can cause a proximal migration of the radius if the radial head is excised 2ndary.

Question 9

Galeazzi Fx

Answer 9

( Monteggia fx, dupuytren Fx, Piedmont Fx)typically a displaced fx of the distal thrid or 1/4 of the radius w/ disruption of the distal raioulnar joint, called fx of nesessity because surgical fixation is required for reduction;

Question 10

Kocher Fx

Answer 10

Fx of capitellum of distal humerus w/ possible displacement of fragment into joint.

Question 11

Laugler Fx

Answer 11

isolated fx of the trochlea of the humerus at the elbow

Question 12

Lead pipe Fx

Answer 12

typically in the forearm, a combo of greenstick and torus fx in the immature shaft of the bone and have the appearance of a slightly bent pipe.

Question 13

Lenteneur’s Fx

Answer 13

A distal radial fx of thepalmar rim, similar to smith type 2 fx

Question 14

Monteggia Fx

Answer 14

isolated fx of proximal third of ulna, w/ posterior or anterior dislocation of radial head allowing angulation and overriding of ulnar fragments

Question 15

Moore Fx

Answer 15

Like a colles fx; specifically, fx of distal radius w/ dorasal displacment of ulnar styloid and impingement under annular ligament

Question 16

Mouchet Fx

Answer 16

Involves Humeral capitellum

Question 17

Nightstick Fx

Answer 17

Undisplaced fx of the ulnar shaft caused by a direct blow. Is a defencive wound

Question 18

Piedmont Fx

Answer 18

Oblique fx usually at the proximal portion of distal third of the radius; obliquity runs from proximal ulnar to distal radial aspect, allowing distal fragments to be pulled into the ulna by the pronator quadratus muscel; fx of neccessity.

Question 19

Radial head fx

Answer 19

Involves the most proximal part of the radius, a dish-shape portion of the bone

Question 20

Radial styloid fx

Answer 20

involves the distal radial tip of radius

Question 21

Reverse Barton Fx

Answer 21

Dorsal displacement of carpus on radius, w/ associated fx of dorsal articular surface of radius. The mechanism and appearance of this fx are similar to those of colles fx.

Question 22

Skillern Fx

Answer 22

open fx of distal radius associated w. greenstick fx of distal ulna.

Question 23

Smith Fx

Answer 23

(Reverse colles fx ) Fx of the distal radius in which the distal fragment is displaced volarly. this fx was defined b4 the advent of x-ray, and , classically there are 3 types
1-Nonarticular 2- Intra-articular ( volar barton fx ) 3- oblique nonarticular fx near the joint line.