[Long-term complications associated with immediate plate reconstruction for mandibular defect following tumor-surgery].
OBJECTIVE
To assess the long-term complications associated with the application of reconstruction plate.


METHODS
Ninety-seven patients underwent immediate repair by using bendable reconstruction plate for maintainance of space and contour following mandibular segmental resection. Of them, 68 cases were followed up for the final outcomes.


RESULTS
Skin or mucosa perforation occurred 6 cases, instabilization of screws in 22 cases, and broken of plate in 3 cases. The reasons for skin or mucosa perforation was possibly associated with circulatory disturbance due to postoperative irradiation. The bone absorption and screw loosening occured most frequently in bone defect involving mandibular angle and chin.


CONCLUSIONS
High concentration of unrationable stress and irradiation were recognised to be the factors responsible for the perforation of covering tissue and screw loosening. The broken of plate was brought about possibly by stress loading and fatigue weakness of plates.
Zhang
Y
Y
School of Stomatology, Beijing Medical University, Beijing 100081.
Zhang
J
J
Yu
G
G
D001860:Bone Plates / Q000009:adverse effects; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery*; D008339:Mandibular Neoplasms / Q000601:surgery*; D008341:Mandibular Prosthesis; D008875:Middle Aged; D009061:Mouth Mucosa / Q000293:injuries; D009062:Mouth Neoplasms / Q000601:surgery*; D011183:Postoperative Complications; D012871:Skin Diseases / Q000209:etiology; D013518:Surgery, Plastic / Q000009:adverse effects; D013997:Time Factors