Forearm Classifications

Question 1

Monteggia fx?

Answer 1

1) Proximal ulna fx (with anterior angulation most commonly)

2) Anterior dx of radial head

Question 2

Galeazzi fx?

Answer 2

1) Radius fx

2) Dx of distal radioulnar joint

Question 3

Bado classification of Monteggia fx?

Answer 3

Based on radial head location
I: Anterior (most common)
II: Posterior
III: Lateral
IV: Anterior with associated both-bone fx

Question 4

Classification of Galeazzi fx?

Answer 4

Based on mechanism of injury:
Pronation: Galeazzi
Supination: Reverse Galeazzi (ulna shaft fx with DRUJ dx)

Question 5

Major complication of Monteggia and Galeazzi fxs?

Answer 5

Compartment syndrome

Question 6

Frykman classication of fxs of distal radius?

Answer 6

I, II: extraarticular
III, IV: RC intraarticular
V, VI: intraarticular distal radioulnar
VII, VIII: both radioulnar and RC joints involved
Even # fxs have associated ulnar styloid fx

Question 7

Scaphoid fxs?

Answer 7

Based on location:
Proximal pole
Middle/”waist” (#1)
Distal pole

Question 8

Perilunate instability?

Answer 8

Mayfield 4:
I: scapholunate disruption
II: lunocapitate disruption
III: lunotriquetral disruption
IV: lunate (peri) dx
Dislocation:
-lesser arc: ligaments only
-greater arc: assoc. carpal fx

Question 9

Colles fx?

Answer 9

Distal radius fx with dorsal (posterior) displacement of wrist and hand

Question 10

Smith fx?

Answer 10

Distal radius fx with volar (anterior) displacement of wrist and hand