Fracture of the base of the first metacarpal bone (thumb) - types
Three types of fracture of the base of the first metacapal bone (thumb) are distinguished by eponyms.
| Type | Description |
|---|---|
| Winterstein | oblique extraarticular fracture of the base |
| Bennett | oblique intraarticular fracture of the base with dislocation of the peripheral fragment due to lateral traction of the shaft by abductor pollicis longus |
| Rolando | comminuted Y- or Z- shaped intraarticular fracture of the base with three fragments |
References:
1. Bennett EH. Fractures of metacarpal bones. Dublin J Med Sci 1882; 73: 72-75
2. Soyer AD. Fractures of the base of the first metacarpal: current treatment options. J Am Acad Orthop Surg. 1999 Dec;7(6):403–12.
Updated 24/8/2013 13:27 by Lambert