To report our experiences of treatment with reviewing literatures and articles about the fractures of plate and nonunion after open reduction and internal fixation of clavicle fracture.

9 cases among 104 cases of clavicle fractures of reoperation due to the fractures of plate or nonunion after open reduction and internal fixation were included. Treatment results were analyzed after 5 months in regard to fracture site pain, gross deformities, limitation of movement of shoulder, discomfortness of casual activity, and patients' personal satisfaction.

According to the criteria of Kang et al 9 cases were classified into excellent 2 cases, good 4 cases, fair 2 cases, poor 1 case. All cases showed bone union average 14.4(12-26) weeks after reoperation. 3 cases of complications were 3 limitation of movement of shoulder, I superficial wound infection.

In operative treatment of clavicle fracture more than three screws in both side of fracture line shoulder be fixated and early exercise of shoulder motion seemed to be needed. In cases of less than three screws fixated, additional external protection is thought be necessary.