The Prevalence and Risk Factors Associated with Osteoradionecrosis of the Jaw in Oral and Oropharyngeal Cancer Patients Treated with Intensity-modulated Radiation Therapy (IMRT): The Memorial Sloan Kettering Cancer Center Experience

Overview

Journal Oral Oncol

Publisher Elsevier

Specialty Dentistry

Date 2016 Dec 28

PMID 28024723

Citations 72

Authors

Adepitan A Owosho

C Jillian Tsai

Ryan S Lee

Haley Freymiller

Arvin Kadempour

Spyridon Varthis

Adi Z Sax

Evan B Rosen

SaeHee K Yom

Joseph Randazzo

Esther Drill

Elyn Riedel

Snehal Patel

Nancy Y Lee

Joseph M Huryn

Cherry L Estilo

Affiliations

Soon will be listed here.

Abstract

Objective: To determine the prevalence and correlation of various risk factors [radiation dose, periodontal status, alcohol and smoking] to the development of osteoradionecrosis (ORN).

Patients And Methods: The records of 1023 patients treated with IMRT for oral cavity cancer (OCC) and oropharyngeal cancer (OPC) between 2004 and 2013 were retrospectively reviewed to identify patients who developed ORN. Fisher exact tests were used to analyze patient characteristics between ORN patients with OCC and OPC. Paired Wilcoxon tests were used to compare the dose volumes to the ORN and contralateral non-ORN sites. To evaluate an association between ORN and risk factors, a case-control comparison was performed. One to 2 ORN-free patients were selected to match each ORN patient by gender, tumor site and size. General estimation equations models were used to compare the risk factors in ORN cases and matched controls.

Results: 44 (4.3%) patients developed ORN during a median follow-up time of 52.5months. In 82% of patients, ORN occurred spontaneously. Patients with OPC are prone to develop ORN earlier compared to patients with OCC (P=0.03). OPC patients received a higher Dmax compared to OCC patients (P=0.01). In the matched case-control analysis the significant risk factors on univariate analysis were poor periodontal status, history of alcohol use and radiation dose (P=0.03, 0.002 and 0.009, respectively) and on multivariate analysis were alcohol use and radiation dose (P=0.004 and 0.026, respectively).

Conclusion: In our study, higher radiation dose, poor periodontal status and alcohol use are significantly related to the risk of developing ORN.

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