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Reconstruction plates used in the surgery for mandibular discontinuity defect.

Seol GJ, Jeon EG, Lee JS, Choi SY, Kim JW, Kwon TG, Paeng JY - J Korean Assoc Oral Maxillofac Surg (2014)

Bottom Line: We analyzed clinical and radiological data of 36 patients.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.Postoperative RT can affect the survival rate and hazard rate after a reconstruction plate is fitted.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, Kyungpook National University School of Dentistry, Daegu, Korea.

ABSTRACT

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.

No MeSH data available.


Related in: MedlinePlus

Survival curves showing the decreased survival rate of reconstruction plates following postoperative radiation therapy (RT).
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Figure 7: Survival curves showing the decreased survival rate of reconstruction plates following postoperative radiation therapy (RT).

Mentions: Most complications associated with the reconstruction plate developed in patients with a discontinuous defect in the mandibular angle area.(Fig. 6) These patients also had an anterior or contralateral dentulous condition. There was a statistically significant decrease in the survival rate of the reconstruction plates in patients who had received postoperative RT (log-rank test, P=0.012).(Fig. 7) The irradiated patients had a higher risk of plate-related complications. Of a total of 8 patients that received postoperative RT, 3 patients (37.5%) experienced plate failures.


Reconstruction plates used in the surgery for mandibular discontinuity defect.

Seol GJ, Jeon EG, Lee JS, Choi SY, Kim JW, Kwon TG, Paeng JY - J Korean Assoc Oral Maxillofac Surg (2014)

Survival curves showing the decreased survival rate of reconstruction plates following postoperative radiation therapy (RT).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4279976&req=5

Figure 7: Survival curves showing the decreased survival rate of reconstruction plates following postoperative radiation therapy (RT).
Mentions: Most complications associated with the reconstruction plate developed in patients with a discontinuous defect in the mandibular angle area.(Fig. 6) These patients also had an anterior or contralateral dentulous condition. There was a statistically significant decrease in the survival rate of the reconstruction plates in patients who had received postoperative RT (log-rank test, P=0.012).(Fig. 7) The irradiated patients had a higher risk of plate-related complications. Of a total of 8 patients that received postoperative RT, 3 patients (37.5%) experienced plate failures.

Bottom Line: We analyzed clinical and radiological data of 36 patients.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.Postoperative RT can affect the survival rate and hazard rate after a reconstruction plate is fitted.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, Kyungpook National University School of Dentistry, Daegu, Korea.

ABSTRACT

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.

No MeSH data available.


Related in: MedlinePlus