Journal
JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
Volume 78, Issue 11, Pages 1986-1999Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.joms.2020.05.037
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Purpose: There is no clarity on which protocol is proper to use in the management of medication-related osteonecrosis of the jaw (MRONJ) at early stages (ie, stages 1 and 2) to halt disease progression. The aim of this study was to evaluate the success of surgical treatment in terms of time to mucosal integrity and downstaging in patients with MRONJ at early stages. Materials and Methods: The study was implemented as a prospective, single-center cohort study. The sample included patients who presented at Magna Graecia University of Catanzaro with a clinical diagnosis of MRONJ and underwent surgical treatment. The primary predictor variables were gender, age, medical history, drug administration, MRONJ localization, trigger factors, and stage. The outcome variables were 1) time to mucosal integrity after surgery with time-to-event analysis and 2) time to downstaging of MRONJ lesions. Descriptive, bivariate, and regression statistics were performed. Results: The study sample included 129 MRONJ patients (90 women and 39 men; mean age, 71.2 +/- 12.7 years), of whom 57 had stage 1 and 72 had stage 2. The mean time to achieve mucosal integrity was 71.6 +/- 67.7 days, considering the survival probability always to be 93% or greater. The mean time to achieve downstaging of the lesion was 43.6 +/- 38.4 days. Patients older than 70 years, those affected by osteometabolic disorders, and those treated with oral antiresorptive therapy showed a significantly shorter time to mucosal healing and downstaging (P < .05). In patients with stage 2 MRONJ, we recorded a significantly longer time to mucosal integrity (56.4 +/- 54.5 days) but shorter time to lesion downstaging (33.6 +/- 9.9 days) than in patients with stage 1 MRONJ (P < .05). Conclusions: Surgical treatment of patients in the early stages of MRONJ guarantees benefits in outcomes such as mucosal integrity and lesion downstaging, improvement in quality of life, and faster reuptake of medication therapy, especially for oncologic patients. (C) 2020 American Association of Oral and Maxillofacial Surgeons
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