Imaging findings of bisphosphonate-associated osteonecrosis of the jaws

Pramit M. Phal, Robert (Bob) Myall, L. A. Assael, Jane Weissman

Research output: Contribution to journalArticle

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Abstract

BACKGROUND AND PURPOSE: Bisphosphonates are drugs that decrease bone turnover by inhibiting osteoclast activity. An association between the use of bisphosphonates and osteonecrosis of the maxilla and mandible has recently been described. This study describes the imaging findings of bisphosphonate- associated osteonecrosis of the jaws. MATERIALS AND METHODS: This is a retrospective series of 15 clinically diagnosed patients, identified at 3 centers. Eleven patients were women, of whom 6 had breast cancer, 3 had osteoporosis, and 2 had multiple myeloma. Of the 4 male patients, 2 had prostate cancer, 1 had multiple myeloma, and 1 had osteoporosis. The age range of the patients was 52-85 years (average, 68 years). The mandible was the clinical site of involvement in 11 patients, and the maxilla was involved in 4 patients. Imaging consisted of orthopantomograms in 14 patients, CT scans in 5 patients, and radionuclide bone scan in 1 patient. Nine patients had sequential imaging. Two radiologists reviewed the images. RESULTS: All of the patients had a degree of osseous sclerosis, most commonly involving the alveolar margin, but lamina dura thickening and full-thickness sclerosis were also observed. The sclerotic change encroached on the mandibular canal in 3 patients. Less commonly encountered findings included poorly healing or nonhealing extraction sockets, periapical lucencies, widening of the periodontal ligament space, osteolysis, sequestra, oroantral fistula, soft tissue thickening, and periosteal new bone formation. CONCLUSIONS: The most common finding in bisphosphonate-associated osteonecrosis was osseous sclerosis. This varied from subtle thickening of the lamina dura and alveolar crest to attenuated osteopetrosis-like sclerosis.

Original languageEnglish (US)
Pages (from-to)1139-1145
Number of pages7
JournalAmerican Journal of Neuroradiology
Volume28
Issue number6
DOIs
StatePublished - Jun 2007

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Bisphosphonate-Associated Osteonecrosis of the Jaw
Sclerosis
Maxilla
Multiple Myeloma
Mandible
Osteoporosis
Oroantral Fistula
Osteopetrosis
Periodontal Ligament
Osteolysis
Bone Remodeling
Diphosphonates
Osteoclasts
Osteogenesis
Radioisotopes

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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Imaging findings of bisphosphonate-associated osteonecrosis of the jaws. / Phal, Pramit M.; Myall, Robert (Bob); Assael, L. A.; Weissman, Jane.

In: American Journal of Neuroradiology, Vol. 28, No. 6, 06.2007, p. 1139-1145.

Research output: Contribution to journalArticle

Phal, Pramit M. ; Myall, Robert (Bob) ; Assael, L. A. ; Weissman, Jane. / Imaging findings of bisphosphonate-associated osteonecrosis of the jaws. In: American Journal of Neuroradiology. 2007 ; Vol. 28, No. 6. pp. 1139-1145.
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