Distal Fibular Stabilization With A Modified Knowles Pin

Abstract Intramedullary fixation of the distal fibula has been used routinely by the first author (G.A.B.) for fifteen years. Twenty patients with ankle fractures fixed with a modified Knowles pin (Howmedica®) in the intramedullary canal of the distal fibula were evaluated as a follow-up study to one conducted in 1984 on thirty-three patients. The 1984 study showed successful stabilization of the injured ankles by use of the modified Knowles, Deyerle, and Steinman pins. No patient had a measurable change in fibular fracture alignment or position of the intramedullary device. There was a 100% union rate and no infections. The modified Knowles pin appears to be a successful device for internal fixation of the lateral malleolus and allows early return to full function.