Bennet's Fracture involves: (A) Base of Ist metacarpal, (B) Neck of Ist metacarpal, (C) Base of Vth metacarpal, (D) Neck of Vth metacarpal
Answer is A. Fracture of the base of the first metacarpal is called Bennett&;s fracture.It involves the anterior pa of the base, and is caused by a force along its long axis. The thumb is forced into a semiflexed position and cannot be opposed. The fist cannot be clenchedReference: Vishram Singh Anatomy; 2nd edition; Page no: 32