What is Lafontaine criteria?

What is Lafontaine criteria?

Accordingly, Lafontaine considered a distal radius fracture unstable if three or more of the following factors were present: dorsal angulation exceeding 20°; dorsal comminution; intra-articular radiocarpal fracture; associated ulnar fracture; and age over 60 years.

What are the Amsterdam wrist rules?

The Amsterdam Wrist Rules is a clinical prediction rule with a high sensitivity and negative predictive value for fractures of the wrist. The Amsterdam Wrist Rules can provide physicians in the Emergency Department with a useful screening tool to select patients with acute wrist trauma for radiography.

What is the classification of the radius?

Frykman classification

Radius Fracture Ulna Fracture
Absent Present
Extra-articular I II
Intra-articular involving radiocarpal joint III IV
Intra-articular involving DRUJ (distal radio-ulnar joint) V VI

How do you classify the radius of a fracture?


  1. type I: transverse metaphyseal fracture.
  2. type II: type I + ulnar styloid fracture.
  3. type III: fracture involves the radiocarpal joint.
  4. type IV: type III + ulnar styloid fracture.
  5. type V: transverse fracture involves distal radioulnar joint.
  6. type VI: type V + ulnar styloid fracture.

What is a Barton fracture?

The Barton fracture is a fracture of the distal radius which extends through the dorsal aspect of the articular surface with associated dislocation of the radiocarpal joint.

What is Kapandji technique?

Intrafocal (Kapandji) pinning is one available technique. The technique is based on placement of wires into the fracture site, pivoting the wires distally about 45°, then proximal advancement of the pins through cortical bone. Pins must be carefully placed between the dorsal wrist compartments.

What is scaphoid fracture?

A scaphoid (navicular) fracture is a break in one of the small bones of the wrist. This type of fracture occurs most often after a fall onto an outstretched hand. Symptoms of a scaphoid fracture typically include pain and tenderness in the area just below the base of the thumb.

How does a Barton fracture occur?

A Barton fracture is a compression injury with a marginal shearing fracture of the distal radius. The most common cause of this injury is a fall on an outstretched, pronated wrist.

Is Barton fracture intra-articular?

The Barton fracture is defined as an intraarticular fracture of the posterior or anterior (reverse Barton fracture) rim of the distal radius with (in contrast to Smith and Colles fractures) accompanying palmar or dorsal displacement of the carpus with the radius fragment, respectively.

What is Sauve Kapandji procedure?

In 1936, Sauvé and Kapandji described a procedure that included an arthrodesis across the distal radioulnar joint and created a pseudarthrosis of the ulna, proximal to the fusion, to restore pronation and supination.

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