1/19/2024 0 Comments Dinner fork colles fracture![]() ![]() This information can alert the clinician to the presence of associated injuries (in the case of high energy mechanisms, such as motor vehicle accidents) or the presence of osteoporosis (in the case of low energy mechanisms, such as a fall from a standing height). History-taking should focus on the mechanism of injury and amount of energy involved. The deformity that results from the Colles’ fracture is described as a “dinner fork" deformity because of depression at the fracture site, dorsal angulation, and dorsal displacement of the distal radius. He or she will complain of wrist pain and swelling. This make fractures more likely, especially in patients with decreased bone mineral density.Ī patient with a fracture of the distal metaphysis of the radius typically describes falling on an outstretched hand or sustaining a direct blow to the wrist. The distal metaphysis of the radius is therefore a relative weak point. On the lateral side of the radius is a styloid process, onto which the brachioradialis inserts and from which the radial collateral ligament of the wrist originates.Īt the distal metaphysis of the radius, the cortex of the bone is thinner than the bone proximal and distal, and the relative amount of cancellous bone increases. The distal ulna attaches to a meniscus-like structure, the triangular fibrocartilage discus, which can be torn with wrist fractures. There, the radius articulates with the proximal row of carpal bones (allowing flexion and extension) it also articulates with the distal ulna (creating a joint for pronation and supination). The distal radius forms the proximal side of the wrist joint. The eponym “Colles’ fracture” has been used to describe all distal radius fractures, though that name refers specifically to fractures that are angulated dorsally.įigure: Colles fracture ( ) Structure and function Associated injuries to the nearby cartilage and ligaments are also frequently seen. Distral radius fractures are frequently accompanied by fractures of the ulnar styloid (with possible injury to the cartilage attached to it) or with injuries to the wrist ligaments. Fractures of the distal radius are often sustained after a fall on the out-stretched hand and are often associated with osteoporosis. Volarly angulated fractures are called Smiths and Barton's fractures.Fractures of the distal radius are common. When the fracture involves the radiocarpal joint or the distal radioulnar joint they are not strictly Colles fractures. For what it's worth, the following is one authors interpretatio n of te definitioon of Colles'FractureĬolles fractures are dorsally angulated fractures of the distal radius that are extra articular and less than 2.5 cm from the wrist joint. The strict definition of Colles' Fracture (and other eponyms) has become bluured and, becuase of this, many radiologists prefer not to use any eponyms when describing farctures. 10 degrees on a side view (10 degrees palmar tilt) (Dr Stuart Meyers). Normally the radius is tilted forward approx. A Colles fracture results in the radius shortening or conversely the ulna becomes too long and impacts against the carpal bones. It usually results from a fall onto the outstretched hand & leads to the Radius crushing into itself (impaction) & tilting backwards (dorsal angulation). This is the commonest wrist fracture & often occurs in postmenopausal women.Ĭolles' fractures are typically caused by a fall onto an outstretched hand. ![]() ![]() The modern useage of the term tends to refer to all distal radius fractures. The term Colles' fracture strictly refers to a dorsally angulated fracture of the distal radius. "The Colles' fracture is named after Abraham Colles (1773-1843), an Irish surgeon who first described this in 1814 before the advent of X-rays." ( ). This page considers all aspects of Imaging Colles fractures. The subtle Colles' fracture is also a commonly missed fracture. The Colles' fracture is one of the most common fractures seen by radiographers. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |