Image Based Question-71978

A patient presented with with swelling and pain at the thumb base.X ray shows the following picture.What can be the most possible diagnosis?

A. Bennet fracture

B. Barton Fracture

C. Boxer’s Fracture

D. Moore’s fracture

Correct Answer » A Explanation

Ans:A. Bennet Fracture.

Bennet fracture

• It is a fracture of the base of the thumb metacarpal (aka 1st metacarpal) that involves the articular surface of the 1st carpometacarpal joint. It is distinct from the Rolando fracture, which is a comminuted intra-articular Bennet’s fracture with a Y-shaped appearance.

• It usually results from axial loading onto a partially flex thumb metacarpal. This can occur when a fist strikes a solid object.

• The important complications occur late:

• joint stiffness and 1st CMCJ arthritis

• malunion.

Treatment:

• Closed reduction and thumb spica cast immobilization can be effective in the treatment of some Bennett fractures.

• Open reduction and internal fixation (ORIF)