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.
Can you move your wrist with a distal radius fracture?
Symptoms of a Distal Radius Fracture Inability to move your hand or wrist or numbness. Deformity of your wrist or forearm.
How do you assess a distal radius fracture?
Physicians may also manipulate the wrist or ask patients to perform certain hand or wrist movements, if they are able. This is the most reliable way to diagnose a distal radius fracture. Physicians will almost always order an X-ray exam of the wrist from several angles.
What is volar angulation?
[17, 18] A negative volar tilt indicates dorsal angulation of the distal, radial articular surface (see image below). The volar tilt, or palmar/volar inclination, is an angle between a line drawn perpendicular to the long axis of the radius and a tangential line drawn along the radial articular surface.
What does volar angulation mean?
Is angulated the same as displaced?
Angulated– A displaced fracture where the ends of the bone fragments are at an angle to each other. Overriding– A displaced fracture where the bone fragments overlap. Impacted– A complete, displaced fracture where one fragment is driven into (“impacting”) a second piece as a result of trauma.
What is the watershed line?
Purpose. The watershed line is a useful surgical landmark for positioning a volar locking plate. Implants placed on or distal to it can impinge on flexor tendons and cause injury. However, the details of the anatomy of this line are unclear.
What is normal volar tilt?
Volar tilt is a measurement made on the lateral projection of the wrist as an angle of the distal radial surface with respect to a line perpendicular to the shaft. A normal range is considered at around 10-25° 1.