Colles fracture In 1813, Abraham Colles described the Colles fracture, which is reported to be the most common distal radial fracture. The injury is usually produced by a fall onto an outstretched hand (FOOSH) mechanism with the wrist in dorsiflexion. The impact produces a transverse fracture in the distal 2-3 cm of the radial articular surface. The fracture is dorsally displaced and may be comminuted. The fracture pattern is often described as a silver or dinner-fork deformity. The fracture fragments are usually impacted and comminuted along the dorsal aspect; the fracture can extend into the epiphysis to involve the. | Các loại gãy xa xương quay đặc biệt Radius Distal Fractures Colles fracture In 1813 Abraham Colles described the Colles fracture which is reported to be the most common distal radial fracture. The injury is usually produced by a fall onto an outstretched hand FOOSH mechanism with the wrist in dorsiflexion. The impact produces a transverse fracture in the distal 2-3 cm of the radial articular surface. The fracture is dorsally displaced and may be comminuted. The fracture pattern is often described as a silver or dinner-fork deformity. The fracture fragments are usually impacted and comminuted along the dorsal aspect the fracture can extend into the epiphysis to involve the distal radiocarpal joint or the distal radioulnar joint. Resnick noted that 50-60 of Colles fracture cases are associated with an ulnar styloid associated ulnar styloid fracture should prompt an investigation for tears of the TFC. The TFC extends from the rim of the sigmoid notch of the radius to the ulnar styloid and is thought to stabilize the distal radioulnar joint AO Classification of Colles Fractures A Extra-articular B Partial articular C Complete articular 1 Simple articular and metaphyseal fracture 2 Simple articular with complex metaphyseal fracture 3 Complex articular and metaphyseal fracture Smith fracture Robert Smith described the Smith fracture in 1847. An impact to the dorsum of the hand or a hyperflexion or hypersupination injury is thought to be the cause. A Smith fracture is usually called a reverse Colles fracture because the distal fragment is displaced volarly. It is often described as a garden-spade deformity. The ulnar head can be displaced dorsally Thomas Classification of Smith Fractures I Most stable extra-articular transverse distal radial fracture with palmar and proximal displacement II Barton type palmar-lip fracture of the distal radius with dislocation of the carpus III Unstable oblique juxta-articular fracture of the distal radius and tilted .
