Three Cases of Fracture of Hamate Hook by Golf

In this paper, we report three cases of the fracture of the hamate hook during golf.Two cases injured their right hands and one the left. Two cases were right handed and one case made right shots with left hand.One case was treated by the excision of the hamate hook for paralysis of the superficial branch of the ulnar nerve. The other cases were treated conservatively.The causes of the fracture are assumed to be the direct force at the grip end, imbalance at the muscler and ligamentous extension force inserted in the hamate hook.