| hangman's fracture | <radiology> Bilateral fracture of pedicles of axis (C2) see also: axis fractures, cervical spine fractures (12 Dec 1998) |
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| Salter-Harris fracture | A classification of fractures (1-5) that occur around or through an epiphyseal plate (growth plate). (27 Sep 1997) |
| scaphoid fracture | A fracture of the scaphoid (navicular) bone in the wrist. The most common method of injury is a fall on an outstretched hand in an adult. In children, this same type of fall more commonly results in a Colles fracture. (27 Sep 1997) |
| hip fracture | <orthopaedics> A fracture of the hip commonly occurs in the neck of the femur (thigh bone). The elderly and those who suffer from osteoporosis are at greatest risk. (27 Sep 1997) |
| segmental fracture | A fracture in two parts of the same bone. Synonym: double fracture. (05 Mar 2000) |
| segond fracture | <radiology> Vertical avulsion fracture of the proximal lateral tibia associated with ligamentous injury: lateral collateral ligament, ACL (12 Dec 1998) |
| horizontal fracture | A fracture of the facial bones in which there is a horizontal fracture at the base of the maxillae above the apices of the teeth. Synonym: horizontal fracture, Le Fort I fracture. (05 Mar 2000) |
| sentinel spinous process fracture | Fracture of the spinous process with undetected deeper fracture's of the vertebral arch. (05 Mar 2000) |
| pyramidal fracture | A fracture of the midfacial skeleton with the principal fracture lines meeting at an apex at or near the superior aspect of the nasal bones. Synonym: Le Fort II fracture. (05 Mar 2000) |
| seymour fracture | <radiology> Juxta-epiphyseal fracture of the distal phalanx of the finger (12 Dec 1998) |
| shepard fracture | <radiology> Fracture of the lateral tubercle of the posterior process of the talus (12 Dec 1998) |
| Shepherd's fracture | A fracture of the external tubercle (posterior process) of the talus, sometimes mistaken for a displacement of the os trigonum. (05 Mar 2000) |
| sideswipe elbow fracture | <radiology> Comminuted fracture of the distal humerus, due to direct trauma (elbow in car window hits approaching vehicle) (12 Dec 1998) |
| silver-fork fracture | A Colles' fracture of the wrist in which the deformity has the appearance of a fork in profile. (05 Mar 2000) |
| simple fracture | A fracture in which skin is intact at site of fracture. Synonym: simple fracture. (05 Mar 2000) |