Metacarpal Fracture

Fractures of the metacarpals are generally due to direct trauma and may be associated with other osseous injuries. The Bennett, Rolando, and boxer's fractures are specific types of metacarpal injuries.
A PA radiograph of the hand. This demonstrates a comminuted fracture of the base of the fifth metacarpal.

B PA radiograph of the hand. This details the appearance of an oblique fracture of the third metacarpal.

C PA radiograph of the hand. This shows fractures of both the third and fourth metacarpals as well as a Colles fracture.

D PA radiograph of a fracture of the second metacarpal.

E Oblique radiograph of the wrist. This demonstrates a fracture of the proximal aspect of the first metacarpal. It does not involve the articular surface, distinguishing this fracture from the Bennett and Rolando fracture.

Links to online textbooks

Wheeless' Orthopedics: discussion of metacarpal fractures

References:

Kozin SH, Thoder JJ, Lieberman G: Operative treatment of metacarpal and phalangeal shaft fractures J Am Acad Orthop Surg. 2000 Mar-Apr;8(2):111-21. [See related articles]
Klein DM, Belsole RJ: Percutaneous treatment of carpal, metacarpal, and phalangeal injuries Clin Orthop. 2000 Jun;(375):116-25. [See related articles]

A	PA radiograph of the hand. This demonstrates a comminuted fracture of the base of the fifth metacarpal.
B	PA radiograph of the hand. This details the appearance of an oblique fracture of the third metacarpal.
C	PA radiograph of the hand. This shows fractures of both the third and fourth metacarpals as well as a Colles fracture.
D	PA radiograph of a fracture of the second metacarpal.
E	Oblique radiograph of the wrist. This demonstrates a fracture of the proximal aspect of the first metacarpal. It does not involve the articular surface, distinguishing this fracture from the Bennett and Rolando fracture.