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Reconstruction plates used in the surgery for mandibular discontinuity defect

2014; Korean Association of Oral and Maxillofacial Surgeons; Volume: 40; Issue: 6 Linguagem: Inglês

10.5125/jkaoms.2014.40.6.266

2234-7550

Guk-Jin Seol, Eun-Gyu Jeon, Jong-Sung Lee, So Young Choi, Jin-Wook Kim, Tae‐Geon Kwon, Jun‐Young Paeng,

Facial Nerve Paralysis Treatment and Research

Objectives The purpose of this study was to analyze the survival rate of reconstruction plates that were used to correct mandibular discontinuity defects. Materials and Methods We analyzed clinical and radiological data of 36 patients. Only discontinuous mandibular defect cases were included in the study. Reconstruction plate survival rate was analyzed according to age, gender, location of defect, defect size, and whether the patient underwent a bone graft procedure, coronoidectomy, and/or postoperative radiation therapy (RT). Results Plate-related complications developed in 8 patients, 7 of which underwent plate removal. No significant differences were found in plate survival rate according to age, gender, location of defect, defect size, or whether a bone graft procedure was performed. However, there were differences in the plate survival rate that depended on whether the patient underwent coronoidectomy or postoperative RT. In the early stages (9.25±5.10 months), plate fracture was the most common complication, but in the later stages (35.75±17.00 months), screw loosening was the most common complication. Conclusion It is important to establish the time-related risk of complications such as plate fracture or screw loosening. Coronoidectomy should be considered in most cases to prevent complications. Postoperative RT can affect the survival rate and hazard rate after a reconstruction plate is fitted.