What type of fracture is a Bennett fracture?

A Bennett fracture specifically refers to an intra-articular fracture of the base of the first metacarpal bone, which is the bone that supports the thumb. This type of fracture is typically caused by axial loading on a partially flexed thumb, resulting in a fracture that can lead to joint instability due to the involvement of the carpometacarpal joint.

Recognizing the location and mechanics of the Bennett fracture is crucial in sports medicine, especially given the significant role the thumb plays in grip and hand function. Accurate identification is essential for appropriate management and treatment, as surgical intervention may be necessary to restore function and stability in the affected area.

A deeper understanding of this fracture helps differentiate it from those affecting other metacarpals, which have different implications for function and treatment.