Embed Size px x x x x Colles fracture. Definition : - it is not just fracture lower end of radius but a fracture dislocation of the inferior radioulnar joint. Occurs about 2. Commonest age group- Elderly. MOA fall in outstretched hand.
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They consist of a fracture of the distal radial metaphyseal region with dorsal angulation and impaction, but without the involvement of the articular surface. This article describes radiographic features to check for and possible complications.
They are particularly common in patients with osteoporosis , and as such, they are most frequently seen in elderly women. The relationship between Colles fractures and osteoporosis is strong enough that when an older male patient presents with a Colles fracture, he should be investigated for osteoporosis because his risk of a hip fracture is also elevated 1.
Younger patients who sustain Colles fractures have usually been involved in high impact trauma or have fallen, e. Most Colles fractures are secondary to a fall on an outstretched hand FOOSH with a pronated forearm in dorsiflexion the position one adopts when trying to break a forward fall. The proximal row of the carpus particularly the lunate and scaphoid transfer energy to the distal radius, both in the dorsal direction and along the long axis of the radius.
Most fractures are therefore dorsally angulated and impacted. A number of classification systems exist for distal forearm fractures. One of the more popular is the Frykman classification system , although it fails to distinguish between Smith and Colles fractures as it is based on AP radiographs As such, in clinical practice, the use of the term Colles fracture with an appropriate description of any associated injuries is sufficient in most instances.
Plain films usually suffice, although if there is a concern of intra-articular extension, then CT may be beneficial. The plain radiographic series often comprises an AP and a lateral view; however, it is not uncommon for an oblique view to be included.
The fracture appears extra-articular and usually proximal to the radioulnar joint. Dorsal angulation of the distal fracture fragment is present to a variable degree as opposed to volar angulation of a Smith fracture.
If dorsal angulation is severe enough, a dinner dinner fork deformity may be described. There is also usually impaction with resultant shortening of the radius.
In addition to noting the presence of a fracture a number of features should be sought and commented upon:. The vast majority of Colles fractures can be treated with closed reduction and cast immobilization. The cast extends from below the elbow to the metacarpal heads and holds the wrist somewhat flexed and in ulnar deviation 4 - for those of you familiar with Australian rules football; this position is reminiscent of the position adopted when holding a ball in preparation for a kick.
This cast is known as a Colles cast 4. Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys. Updating… Please wait. Unable to process the form. Check for errors and try again. Thank you for updating your details. Log In. Sign Up. Log in Sign up. Articles Cases Courses Quiz. About Blog Go ad-free. As of the latest update, Google Chrome and Microsoft Edge have made a breaking change to how file uploads are handled.
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Teaching Atlas of Musculoskeletal Imaging. Thieme Medical Pub. Read it at Google Books - Find it at Amazon. Edit article Share article View revision history Report problem with Article.
URL of Article. Article information. Systems: Musculoskeletal , Trauma. Tags: fracture , wrist , eponymous , fracture. Synonyms or Alternate Spellings: Colles' fracture Colles fractures. Support Radiopaedia and see fewer ads. Cases and figures. Figure 1: Colles fracture illustration Figure 1: Colles fracture illustration.
Case 1 Case 1. Case 2 Case 2. Case 3 Case 3. Case 5 Case 5. Case 6 Case 6. Case 7 Case 7. Case 8 Case 8. Imaging differential diagnosis. Case 1: normal radial beak Case 1: normal radial beak. Loading more images Close Please Note: You can also scroll through stacks with your mouse wheel or the keyboard arrow keys.
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A Colles' fracture is a type of fracture of the distal forearm in which the broken end of the radius is bent backwards. It typically occurs as a result of a fall on an outstretched hand. Treatment may include casting or surgery. The fracture is most commonly caused by people falling onto a hard surface and breaking their fall with outstretched hand FOOSH —falling with wrists flexed would lead to a Smith's fracture. It usually occurs about three to five centimetres proximal to the radio-carpal joint with posterior and lateral displacement of the distal fragment resulting in the characteristic "dinner fork" or "bayonet" like deformity. Colles fracture is a common fracture in people with osteoporosis , second only to vertebral fractures.
Definition : - it is not just fracture lower end of radius but a fracture dislocation of the inferior radioulnar joint. Occurs about 2. Commonest age group- Elderly. MOA fall in outstretched hand.
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