Image findings of Bisphosphonate Related Osteonecrosis of jaws comparing with osteoradionecrosis.

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Image findings of Bisphosphonate Related Osteonecrosis of jaws comparing with osteoradionecrosis.

Dentomaxillofac Radiol. 2017 Feb 10;:20160281

Authors: Obinata K, Shirai S, Ito H, Nakamura M, Carrozzo M, Macleod I, Carr A, Yamazaki Y, Tei K

Abstract
OBJECTIVES: The aim of this study was to evaluate image characteristics of bisphosphonate related osteonecrosis of the jaws (BRONJ) and compare these with osteoradionecrosis (ORN).
METHODS: Thirty-four patients with BRONJ and 16 patients with ORN were included in this study. We investigated the computed tomography (CT) and Dental Panoramic Radiograph (DPR) images for osteolysis, osteosclerosis, sequesteration, periosteal reaction, pathological fracture, and spread of soft tissue inflammation around the jaws.
RESULTS: Osteolysis, osteosclerosis, sequesteration, and spread of soft tissue inflammation around the jaws were common radiological features in both BRONJ and ORN. Osteolysis and spreading of soft tissue inflammation around the jaws were predominant in ORN, and by contrast, osteosclerosis was predominant in BRONJ. Periosteal reaction was established in 15 of the 34 BRONJ, but none in the ORN cases. Pathological fractures were observed in 6 of 16 ORN, but none in BRONJ. The CT was better for detection than DPR for osteolysis, osteosclerosis, sequestration, and periosteal reactions.
CONCLUSIONS: Image findings of BRONJ were characterized as a severe sclerotic change combined with osteolysis, sequestration, periosteal reaction, and spread of soft tissue inflammation around the jaws.

PMID: 28186845 [PubMed - as supplied by publisher]

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