Clinical Study of Complications Associated with Mandibular Reconstruction Plates Used in Resection of Oral Squamous Cell Carcinoma.

Background:Reconstructive plates used in mandibular reconstruction may lead to complications such as plate fracture or exposure, and their management is often difficult. In this study, we investigated complications associated with mandibular reconstruction plates in patients who underwent resection of oral squamous cell carcinoma in our department. Methods:Twenty-five patients who received mandibular reconstruction plates during oral squamous cell carcinoma resection at our department over approximately the past 10 years were reviewed. Parameters examined included age, sex, tumor location, stage, type and timing of complication, possible causes, and treatments. Results:Plate exposure occurred in 4 patients, and plate fracture occurred in 4 patients. All exposures were on the cutaneous side. Additional findings included screw fractures and bone resorption around screws. Plate fractures tended to occur more often in patients with strong occlusal support. Patients without reconstruction showed a significantly higher incidence of fracture. Plate fracture was also influenced by plate configuration and bending, while plate exposure was attributed mainly to insufficient soft tissue volume. Conclusion:Although plate reconstruction is useful, the relatively high frequency of complications requires careful consideration of multiple factors when determining its application.