A 10-year analysis of the "Amsterdam" protocol in the treatment of zygomatic complex fractures.

Despite many publications on the epidemiology, incidence and aetiology of zygomatic complex (ZC) fractures there is still a lack of information about a consensus in its treatment. The aim of the present study is to investigate retrospectively the Amsterdam protocol for surgical treatment of ZC fractures. The 10 years results and complications are presented. The study population consisted of 236 patients (170 males, 66 females, 210 ZC fractures, 26 solitary zygomatic arch fractures) with a mean age of 39.3 (SD: ±15.6) years (range 4-87 years). The mean cause of injury was traffic accident followed by violence and fall. A total of 225 plates and 943 screws were used. Twenty-eight patients presented with complications, including wound infection (9 patients) and transient paralysis of the facial nerve (one patient). Seven patients (2.8%) needed surgical retreatment of whom four patients needed secondary orbital floor reconstruction as these patients developed enophthalmos and diplopia. In conclusion this report provides important data for reaching a consensus for the treatment of these types of fractures.