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Reinert CP, Pfannenberg C, Gückel B, Dittmann H, la Fougère C, Nikolaou K, Reinert S, Schönhof R, Hoefert S. Preoperative Assessment of Medication-Related Osteonecrosis of the Jaw Using [18F]fluoride Positron Emission Tomography (PET)/CT and [18F]fluorodeoxyglucose PET/MRI in Correlation with Histomorphometry and Micro-CT-A Prospective Comparative Study. Diagnostics (Basel) 2024; 14:428. [PMID: 38396467 PMCID: PMC10888075 DOI: 10.3390/diagnostics14040428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/10/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
OBJECTIVES The purpose of this study was to investigate the imaging characteristics of medication-related osteonecrosis of the jaw (MRONJ) using [18F]fluoride positron emission tomography/computed tomography (PET/CT) and [18F]fluorodeoxyglucose (FDG) PET/magnetic resonance imaging (MRI) for preoperative assessment and to correlate them with microarchitectural and histomorphometric data with respect to clinical findings. METHODS Twelve patients (five female; mean age 75 ± 7.6 yr) with symptomatic MRONJ underwent both scans on the same day, and imaging findings were used to plan surgical interventions for seven patients. Bone tracer uptake was classified as high, medium, or low, and surgical samples were evaluated using Micro-CT and histomorphometric analysis. RESULTS CT showed medullary sclerosis in all patients, and MRI revealed gadolinium enhancement in four patients. PET imaging revealed remarkably elevated [18F]fluoride uptake and moderately increased [18F]FDG uptake in MRONJ compared to healthy jawbones, with both differences being statistically significant. [18F]fluoride uptake was associated with necrosis, bacteria, and inflammatory tissue. Micro-CT data did not show significant differences, but histomorphometric analysis revealed higher osteocyte and lacunae densities in the high [18F]fluoride uptake group, and more necrotic bone in the medium [18F]fluoride uptake group. Bacteria were observed in all areas. CONCLUSIONS In summary, [18F]fluoride PET accurately identified MRONJ extent, revealing functional changes in jawbone remodeling not visible on CT. [18F]FDG PET showed differences in bone and soft tissue, though less pronounced. This method aids in evaluating disease activity and guiding treatment planning, requiring further research for optimal surgical approaches based on tracer uptake.
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Affiliation(s)
- Christian Philipp Reinert
- Department of Radiology, Diagnostic and Interventional Radiology, University Hospital Tübingen, 72076 Tübingen, Germany; (C.P.); (B.G.); (K.N.)
| | - Christina Pfannenberg
- Department of Radiology, Diagnostic and Interventional Radiology, University Hospital Tübingen, 72076 Tübingen, Germany; (C.P.); (B.G.); (K.N.)
| | - Brigitte Gückel
- Department of Radiology, Diagnostic and Interventional Radiology, University Hospital Tübingen, 72076 Tübingen, Germany; (C.P.); (B.G.); (K.N.)
| | - Helmut Dittmann
- Department of Radiology, Nuclear Medicine and Clinical Molecular Imaging, University Hospital Tübingen, 72076 Tübingen, Germany; (H.D.); (C.l.F.)
| | - Christian la Fougère
- Department of Radiology, Nuclear Medicine and Clinical Molecular Imaging, University Hospital Tübingen, 72076 Tübingen, Germany; (H.D.); (C.l.F.)
- Cluster of Excellence iFIT (EXC 2180) “Image Guided and Functionally Instructed Tumor, Therapies”, University of Tübingen, 72076 Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, 72076 Tübingen, Germany
| | - Konstantin Nikolaou
- Department of Radiology, Diagnostic and Interventional Radiology, University Hospital Tübingen, 72076 Tübingen, Germany; (C.P.); (B.G.); (K.N.)
- Cluster of Excellence iFIT (EXC 2180) “Image Guided and Functionally Instructed Tumor, Therapies”, University of Tübingen, 72076 Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, 72076 Tübingen, Germany
| | - Siegmar Reinert
- Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, 72076 Tübingen, Germany; (S.R.); (R.S.); (S.H.)
| | - Rouven Schönhof
- Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, 72076 Tübingen, Germany; (S.R.); (R.S.); (S.H.)
| | - Sebastian Hoefert
- Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, 72076 Tübingen, Germany; (S.R.); (R.S.); (S.H.)
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Lopes DN, Marques LC, Lima ADS, Eletério Neto J, Hollanda R, de Souza LFS, da Silva LE, Cunha KS. Jaw Alterations MRI and Serum Levels of C-Terminal Type I Telopeptide in Patients With Osteoporosis and Osteopenia Being Treated With Bisphosphonates Without Clinical Evidence of Osteonecrosis: A Pilot Study. J Magn Reson Imaging 2022; 57:1607-1610. [PMID: 36178670 DOI: 10.1002/jmri.28434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Danielle Nobre Lopes
- Postgraduate Program in Pathology, School of Medicine, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Letícia Côgo Marques
- Postgraduate Program in Pathology, School of Medicine, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | | | | | | | | | - Licínio Esmeraldo da Silva
- Postgraduate Program in Pathology, School of Medicine, Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - Karin Soares Cunha
- Postgraduate Program in Pathology, School of Medicine, Universidade Federal Fluminense, Rio de Janeiro, Brazil
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Ito K, Muraoka H, Hirahara N, Sawada E, Hirohata S, Otsuka K, Okada S, Kaneda T. Quantitative assessment of mandibular bone marrow using computed tomography texture analysis for detect stage 0 medication-related osteonecrosis of the jaw. Eur J Radiol 2021; 145:110030. [PMID: 34798536 DOI: 10.1016/j.ejrad.2021.110030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/07/2021] [Accepted: 11/09/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE Medication-related osteonecrosis of the jaw (MRONJ) is a serious complication of treatment with bisphosphonates or antiangiogenic inhibitors. MRONJ has four stages (0-3); however, stage 0 MRONJ is difficult to detect using computed tomography (CT). This study aimed to quantitatively assess the mandibular bone marrow using texture analysis to detect stage 0 MRONJ from CT images. METHODS This retrospective study included 25 patients with stage 0 MRONJ who had a history of treatment with bisphosphonates and underwent CT and magnetic resonance imaging (MRI). The mandibular bone marrow with abnormal signals (T1-weighted imaging: low, T2-weighted imaging: low or high, short-tau inversion recovery: high) on MRI, and no qualitative characteristic CT and oral findings indicative of osteonecrosis (exposed bone, sequestrum, periosteal reaction, and osteolysis) was identified as 0 MRONJ. Texture features of the bone marrow of the mandible with MRONJ and the contralateral, normal mandibular bone marrow were extracted using an open-access software, namely, LIFEx. The volumes of interest (VOIs) were manually placed on CT images by tracing the bilateral mandibular bone marrow regions, excluding the teeth, mandibular canal, and cortical bone. Thirty-seven texture features were extracted from each VOI. RESULTS Six gray-level run length matrix features and four gray-level zone length matrix features exhibited significant differences between mandibular bone marrow with and without MRONJ. CONCLUSIONS CT was able to quantitatively assess texture features of normal mandibular bone marrow and that with MRONJ. Texture analysis may be useful as a new method for detecting stage 0 MRONJ using CT.
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Affiliation(s)
- Kotaro Ito
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan.
| | - Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Eri Sawada
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Shoya Hirohata
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Kohei Otsuka
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Shunya Okada
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
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Ogura I, Minami Y, Ono J, Kanri Y, Okada Y, Igarashi K, Haga-Tsujimura M, Nakahara K, Kobayashi E. CBCT imaging and histopathological characteristics of osteoradionecrosis and medication-related osteonecrosis of the jaw. Imaging Sci Dent 2021; 51:73-80. [PMID: 33828964 PMCID: PMC8007393 DOI: 10.5624/isd.20200230] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/14/2020] [Accepted: 10/28/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the cone-beam computed tomographic (CBCT) imaging and histopathological characteristics of osteoradionecrosis (ORN) and medication-related osteonecrosis of the jaw (MRONJ). Materials and Methods Ten surgical specimens from segmental mandibulectomy (3 ORN and 7 MRONJ) were analyzed using CBCT. The CBCT parameters were as follows: high-resolution mode (tube voltage, 90.0 kV; tube current, 4.00 mA; rotation time, 16.8 s; field of view, 56 mm×56 mm; thickness, 0.099 mm). Histopathological characteristics were evaluated using histological slides of the surgical specimens. The Pearson chi-square test was used to compare ORN and MRONJ in terms of CBCT findings (internal texture, sequestrum, periosteal reaction and cortical perforation) and histopathological characteristics (necrotic bone, inflammatory cells, reactive bone formation, bacteria, Actinomyces, and osteoclasts). A P value less than 0.05 was considered to indicate statistical significance. Results MRONJ showed periosteal reaction on CBCT more frequently than ORN (7 of 7 [100%] vs. 0 of 3 [0%], P<0.05). Regarding histopathological characteristics, MRONJ showed osteoclasts more frequently than ORN (6 of 7 [85.7%] vs. 0 of 3 [0%], P<0.05). Conclusion This study evaluated the CBCT imaging and histopathological characteristics of ORN and MRONJ, and the findings suggest that CBCT could be useful for the evaluation of ORN and MRONJ.
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Affiliation(s)
- Ichiro Ogura
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Yoshiyuki Minami
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Junya Ono
- Department of Pathology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Yoriaki Kanri
- Department of Pathology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Yasuo Okada
- Department of Pathology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Kensuke Igarashi
- Department of Dental Materials Science, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Maiko Haga-Tsujimura
- Department of Histology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan.,Advanced Research Center, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Ken Nakahara
- Advanced Research Center, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Eizaburo Kobayashi
- Department of Oral and Maxillofacial Surgery, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
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Wongratwanich P, Shimabukuro K, Konishi M, Nagasaki T, Ohtsuka M, Suei Y, Nakamoto T, Verdonschot RG, Kanesaki T, Sutthiprapaporn P, Kakimoto N. Do various imaging modalities provide potential early detection and diagnosis of medication-related osteonecrosis of the jaw? A review. Dentomaxillofac Radiol 2021; 50:20200417. [PMID: 33411572 DOI: 10.1259/dmfr.20200417] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE Patients with medication-related osteonecrosis of the jaw (MRONJ) often visit their dentists at advanced stages and subsequently require treatments that greatly affect quality of life. Currently, no clear diagnostic criteria exist to assess MRONJ, and the definitive diagnosis solely relies on clinical bone exposure. This ambiguity leads to a diagnostic delay, complications, and unnecessary burden. This article aims to identify imaging modalities' usage and findings of MRONJ to provide possible approaches for early detection. METHODS Literature searches were conducted using PubMed, Web of Science, Scopus, and Cochrane Library to review all diagnostic imaging modalities for MRONJ. RESULTS Panoramic radiography offers a fundamental understanding of the lesions. Imaging findings were comparable between non-exposed and exposed MRONJ, showing osteolysis, osteosclerosis, and thickened lamina dura. Mandibular cortex index Class II could be a potential early MRONJ indicator. While three-dimensional modalities, CT and CBCT, were able to show more features unique to MRONJ such as a solid type periosteal reaction, buccal predominance of cortical perforation, and bone-within-bone appearance. MRI signal intensities of vital bones are hypointense on T1WI and hyperintense on T2WI and STIR when necrotic bone shows hypointensity on all T1WI, T2WI, and STIR. Functional imaging is the most sensitive method but is usually performed in metastasis detection rather than being a diagnostic tool for early MRONJ. CONCLUSION Currently, MRONJ-specific imaging features cannot be firmly established. However, the current data are valuable as it may lead to a more efficient diagnostic procedure along with a more suitable selection of imaging modalities.
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Affiliation(s)
- Pongsapak Wongratwanich
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Kiichi Shimabukuro
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Masaru Konishi
- Department of Oral and Maxillofacial Radiology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Toshikazu Nagasaki
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Masahiko Ohtsuka
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Yoshikazu Suei
- Department of Oral and Maxillofacial Radiology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Takashi Nakamoto
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Rinus G Verdonschot
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Tomohiko Kanesaki
- Department of Oral and Maxillofacial Surgery, Saiseikai Senri Hospital, 1 Chome-1-6 Tsukumodai, Suita, Osaka 565-0862, Japan
| | - Pipop Sutthiprapaporn
- Department of Preventive Dentistry, Faculty of Dentistry, Khon Kaen University, Amphur Muang, Khon Kaen 40002, Thailand
| | - Naoya Kakimoto
- Department of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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Fractal dimension in CBCT images as predictor for MRONJ: a retrospective cohort study. Clin Oral Investig 2020; 25:2113-2118. [PMID: 32827078 PMCID: PMC7966145 DOI: 10.1007/s00784-020-03523-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/11/2020] [Indexed: 12/11/2022]
Abstract
Objective To estimate boxcounting fractal dimension in a standardized approach in CBCT images of the mandible and maxilla in a group of patients with MRONJ in comparison to a healthy control group. Material and methods From our records, a study group consisting of 80 maxillary and mandibular CBCTs in 77 cases of patients having MRONJ was collected. The control group consisted of 84 mandibular and maxillary CBCTs in a total of 78 patients. Using the boxcounting method, fractal dimension (FD) was estimated in a standardized fashion either cranially to the apex of the canine (maxilla) or beneath the tooth apices of the lower molars in the bone area above the mandibular canal (mandible). Intra-observer reproducibility of the FD-measurements was assessed by 6 repeated measurements in 10 individuals. FD values were correlated to age and sex of the individuals as well as to region of interest (ROI) sizes. Results FD in the study group (1.684 ± 0.051) was roughly 3.5 % lower than in the control group (1.745 ± 0.026, p < 0.0001). Sex and age had a significant (p < 0.001) influence on FD values in the study group, yet not in the control group. FD values increased with age (study group, spearman-rho: 0.2895, p < 0.05) and also ROI size (both groups, p < 0.0001). Reproducibility was good (intra-class correlation coefficient (ICC): 0.87). Conclusions Fractal dimension as assessed by boxcounting seems to be a good descriptor for MRONJ in jaw bones. Influence of age and sex on the outcome values needs to be further investigated in future studies. Clinical relevance CBCTs could be assessed with respect to FD to obtain an overview of the disease status of MRONJ patients.
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Ogura I, Sasaki Y, Sue M, Oda T, Kameta A, Hayama K. Tc-99m hydroxymethylene diphosphonate SPECT/CT for the evaluation of osteonecrosis of the jaw: preliminary study on diagnostic ability of maximum standardised uptake value. Clin Radiol 2020; 75:46-50. [DOI: 10.1016/j.crad.2019.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 05/24/2019] [Indexed: 12/13/2022]
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Ogura I, Kobayashi E, Nakahara K, Haga-Tsujimura M, Igarashi K, Katsumata A. Computer programme to assess mandibular cortex morphology in cases of medication-related osteonecrosis of the jaw with osteoporosis or bone metastases. Imaging Sci Dent 2019; 49:281-286. [PMID: 31915613 PMCID: PMC6941839 DOI: 10.5624/isd.2019.49.4.281] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/25/2019] [Accepted: 08/11/2019] [Indexed: 11/18/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the morphology of the mandibular cortex in cases of medication-related osteonecrosis of the jaw (MRONJ) in patients with osteoporosis or bone metastases using a computer programme. Materials and Methods Fifty-four patients with MRONJ (35 with osteoporosis and 19 with bone metastases) were examined using panoramic radiography. The morphology of the mandibular cortex was evaluated using a computer programme that scanned the mandibular inferior cortex and automatically assessed the mandibular cortical index (MCI) according to the thickness and roughness of the mandibular cortex, as follows: normal (class 1), mildly to moderately eroded (class 2), or severely eroded (class 3). The MCI classifications of MRONJ patients with osteoporosis or bone metastases were evaluated with the Pearson chi-square test. In these analyses, a 5% significance level was used. Results The MCI of MRONJ patients with osteoporosis (class 1: 6, class 2: 15, class 3: 14) tended to be higher than that of patients with bone metastases (class 1: 14, class 2: 5, class 3: 0) (P=0.000). Conclusion The use of a computer programme to assess mandibular cortex morphology may be an effective technique for the objective and quantitative evaluation of the MCI in MRONJ patients with osteoporosis or bone metastases.
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Affiliation(s)
- Ichiro Ogura
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Eizaburo Kobayashi
- Department of Oral and Maxillofacial Surgery, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Ken Nakahara
- Advanced Research Center, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Maiko Haga-Tsujimura
- Department of Histology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Kensuke Igarashi
- Department of Life Science Dentistry, The Nippon Dental University, Niigata, Japan
| | - Akitoshi Katsumata
- Department of Oral Radiology, Asahi University School of Dentistry, Mizuho, Japan
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Baba A, Ojiri H, Goto TK, Ikeda K, Yamauchi H, Ogino N, Mogami T. Symposium: Imaging modalities for drug-related osteonecrosis of the jaw (4), CT and MR imaging findings of antiresorptive agent-related osteonecrosis of the jaws/medication-related osteonecrosis of the jaw (secondary publication). JAPANESE DENTAL SCIENCE REVIEW 2019; 55:58-64. [PMID: 30815046 PMCID: PMC6378898 DOI: 10.1016/j.jdsr.2018.11.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/25/2018] [Accepted: 11/28/2018] [Indexed: 11/21/2022] Open
Abstract
Generally, CT and MR images of antiresorptive agent-related osteonecrosis of the jaw (ARONJ)/medication-related osteonecrosis of the jaw (MRONJ) show nonspecific findings as seen in active osteomyelitis.However, there are some characteristics as follows; unilateral maxillary sinusitis adjacent to ipsilateral maxillary ARONJ/MRONJ, DRONJ presenting larger sequestrum and periosteal reaction more frequently than BRONJ, BRONJ resulting from intravenous administration of the drug presenting larger and more frequent buccolingual cortical bone perforations than BRONJ from oral administration, and better diagnostic accuracy of extent of perilesional soft tissue inflammation on MR imaging than CT. The CT and MR imaging features of ARONJ/MRONJ are summarized in this report.
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Affiliation(s)
- Akira Baba
- Department of Radiology, The Jikei University School of Medicine, Tokyo, Japan
- Department of Radiology, Tokyo Dental College Ichikawa General Hospital, Chiba, Japan
| | - Hiroya Ojiri
- Department of Radiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Tazuko K. Goto
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Tokyo, Japan
| | - Koshi Ikeda
- Department of Radiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hideomi Yamauchi
- Department of Radiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuhiro Ogino
- Department of Radiology, Jikei University School of Medicine Daisan Hospital, Tokyo, Japan
| | - Takuji Mogami
- Department of Radiology, Tokyo Dental College Ichikawa General Hospital, Chiba, Japan
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Ogura I, Kobayashi E, Nakahara K, Igarashi K, Haga-Tsujimura M, Toshima H. Quantitative SPECT/CT imaging for medication-related osteonecrosis of the jaw: a preliminary study using volume-based parameters, comparison with chronic osteomyelitis. Ann Nucl Med 2019; 33:776-782. [DOI: 10.1007/s12149-019-01390-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/17/2019] [Indexed: 12/14/2022]
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Ogura I, Sasaki Y, Sue M, Oda T, Kameta A, Hayama K. Tc-99m hydroxymethylene diphosphonate scintigraphy, computed tomography, and magnetic resonance imaging of osteonecrosis in the mandible: Osteoradionecrosis versus medication-related osteonecrosis of the jaw. Imaging Sci Dent 2019; 49:53-58. [PMID: 30941288 PMCID: PMC6444004 DOI: 10.5624/isd.2019.49.1.53] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 11/18/2022] Open
Abstract
Purpose To present characteristic findings of Tc-99m hydroxymethylene diphosphonate (HMDP) scintigraphy, computed tomography (CT), and magnetic resonance (MR) imaging for osteonecrosis in the mandible, especially osteoradionecrosis (ORN) and medication-related osteonecrosis of the jaw (MRONJ). Materials and Methods Thirteen patients with MRONJ and 7 patients with ORN in the mandible underwent Tc-99m HMDP scintigraphy, CT, and MR imaging (T1-weighted images [T1WI], T2-weighted images [T2WI], short inversion time inversion recovery images [STIR]), diffusion-weighted images [DWI], and apparent diffusion coefficient [ADC] mapping). The associations of scintigraphy, CT, and MR imaging findings with MRONJ and ORN were analyzed using the chi-square test with the Pearson exact test. Results Thirteen patients with MRONJ and 7 patients with ORN in the mandible showed low signal intensity on T1WI and ADC mapping, high signal intensity on STIR and DWI, and increased uptake on scintigraphy. Periosteal bone proliferation on CT was observed in 69.2% of patients with MRONJ (9 of 13) versus 14.3% of patients with ORN (1 of 7) (P=0.019). Conclusion This study presented characteristic imaging findings of MRONJ and ORN on scintigraphy, CT, and MR imaging. Our results suggest that CT can be effective for detecting MRONJ and ORN.
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Affiliation(s)
- Ichiro Ogura
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University, School of Life Dentistry at Niigata, Niigata, Japan
| | - Yoshihiko Sasaki
- Radiology, The Nippon Dental University, Niigata Hospital, Niigata, Japan
| | - Mikiko Sue
- Radiology, The Nippon Dental University, Niigata Hospital, Niigata, Japan
| | - Takaaki Oda
- Radiology, The Nippon Dental University, Niigata Hospital, Niigata, Japan
| | - Ayako Kameta
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University, School of Life Dentistry at Niigata, Niigata, Japan
| | - Kazuhide Hayama
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University, School of Life Dentistry at Niigata, Niigata, Japan
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Baba A, Goto TK, Ojiri H, Takagiwa M, Hiraga C, Okamura M, Hasegawa S, Okuyama Y, Ogino N, Yamauchi H, Kobashi Y, Yamazoe S, Munetomo Y, Mogami T, Nomura T. CT imaging features of antiresorptive agent-related osteonecrosis of the jaw/medication-related osteonecrosis of the jaw. Dentomaxillofac Radiol 2018; 47:20170323. [PMID: 29365278 DOI: 10.1259/dmfr.20170323] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Antiresorptive agent-related osteonecrosis of the jaw (ARONJ)/medication-related osteonecrosis of the jaw (MRONJ) include both bisphosphonate-related osteonecrosis of jaw (BRONJ) and denosumab-related osteonecrosis of jaw (DRONJ). The purpose of this study is to study radiological characteristics of ARONJ/MRONJ. These imaging features may serve as one useful aid for assessing ARONJ/MRONJ. METHODS CT scans of 74 Japanese patients, who were clinically diagnosed by inclusion criteria of ARONJ/MRONJ, obtained between April 1, 2011 and September 30, 2016, were evaluated. We investigated the CT imaging features of ARONJ/MRONJ, and clarified radiological differentiation between BRONJ and DRONJ, BRONJ due to oral bisphosphonate administration and due to intravenous bisphosphonate administration, BRONJ with respective kinds of medication, BRONJ with long-term administration and short-term administration, BRONJ with each clinical staging respectively. Fisher's exact test, χ2 test, Student's t-test and analysis of variance were performed in the statistical analyses. RESULTS Unilateral maxillary sinusitis was detected in all patients with upper ARONJ/MRONJ (100%). DRONJ showed large sequestrum more frequently than BRONJ (3/4, 75 vs 3/35, 8.6%, p < 0.05). DRONJ showed periosteal reaction more frequently than BRONJ (4/10, 40 vs 7/65, 10.1%, p < 0.05). Patients of BRONJ resulting from intravenous bisphosphonate administration showed larger and more frequent buccolingual cortical bone perforations than BRONJ resulting from oral bisphosphonate administration (7/8, 87.5 vs 11/30, 36.7%, p < 0.05). There was no significant correlation between CT findings and respective kinds of medication, long/short-term administration, clinical stages of BRONJ. CONCLUSIONS ARONJ/MRONJ has characteristic CT image findings which could be useful for its assessment.
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Affiliation(s)
- Akira Baba
- 1 Department of Radiology, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Tazuko K Goto
- 2 Department of Oral and Maxillofacial Radiology, Tokyo Dental College , Tokyo , Japan
| | - Hiroya Ojiri
- 3 Department of Radiology, Jikei University School of Medicine , Tokyo , Japan
| | - Mutsumi Takagiwa
- 4 Laboratory of Mathematics, Tokyo Dental College , Tokyo , Japan
| | - Chiho Hiraga
- 5 Department of Oral and Maxillofacial Surgery, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Masahiro Okamura
- 5 Department of Oral and Maxillofacial Surgery, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Sho Hasegawa
- 5 Department of Oral and Maxillofacial Surgery, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Yumi Okuyama
- 1 Department of Radiology, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Nobuhiro Ogino
- 2 Department of Oral and Maxillofacial Radiology, Tokyo Dental College , Tokyo , Japan
| | - Hideomi Yamauchi
- 2 Department of Oral and Maxillofacial Radiology, Tokyo Dental College , Tokyo , Japan
| | - Yuko Kobashi
- 1 Department of Radiology, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Shinji Yamazoe
- 1 Department of Radiology, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Yohei Munetomo
- 1 Department of Radiology, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Takuji Mogami
- 1 Department of Radiology, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
| | - Takeshi Nomura
- 5 Department of Oral and Maxillofacial Surgery, Tokyo Dental College Ichikawa General Hospital , Ichikawa, Chiba , Japan
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Ogura I, Sasaki Y, Kameta A, Sue M, Oda T. Characteristic Multimodal Imaging of Medication-Related Osteonecrosis of the Jaw: Comparison Between Oral and Parenteral Routes of Medication Administration. Pol J Radiol 2017; 82:551-560. [PMID: 29657620 PMCID: PMC5894018 DOI: 10.12659/pjr.902513] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 12/28/2016] [Indexed: 11/16/2022] Open
Abstract
Background To assess multimodal imaging features of medication-related osteonecrosis of the jaw (MRONJ) and to analyze the differences between oral and parenteral routes of medication administration. We retrospectively reviewed panoramic radiographs, CT, MRI, and bone scintigraphy of patients with MRONJ. Material/Methods A retrospective study was conducted in 16 patients with MRONJ who underwent panoramic radiography, CT, MRI, and bone scintigraphy. Statistical analysis for the comparison between routes of medication administration and multimodal imaging features was performed with the Pearson’s χ2 test. Results The percentage of cases with sequestrum separation was 25.0% (4/16 cases) on panoramic radiography and 81.3% (13/16 cases) on CT. The percentage of cases with periosteal bone proliferation on CT was 41.7% (5/12 cases) in the oral route of administration vs. 100% (4/4 cases) in the parenteral route of administration (p=0.042). The percentage of cases with spread of soft tissue inflammation to buccal and other spaces on CT and MRI was 33.3% (4/12 cases) in the oral route of administration vs. 100% (4/4 cases) in the parenteral route of administration (p=0.021). Conclusions The sequestrum separation on panoramic radiography in patients with MRONJ was unclear in comparison to CT. Furthermore, characteristic CT findings of patients with MRONJ in the parenteral administration group were periosteal bone proliferation and spread of soft tissue inflammation to buccal and other spaces.
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Affiliation(s)
- Ichiro Ogura
- Department of Radiology, The Nippon Dental University Niigata Hospital, Niigata, Japan
| | - Yoshihiko Sasaki
- Department of Radiology, The Nippon Dental University Niigata Hospital, Niigata, Japan
| | - Ayako Kameta
- Department of Oral and Maxillofacial Radiology, The Nippon Dental University School of Life Dentistry at Niigata, Niigata, Japan
| | - Mikiko Sue
- Department of Radiology, The Nippon Dental University Niigata Hospital, Niigata, Japan
| | - Takaaki Oda
- Department of Radiology, The Nippon Dental University Niigata Hospital, Niigata, Japan
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Panoramic radiographic features that predict the development of bisphosphonate-related osteonecrosis of the jaw. Oral Radiol 2017; 34:151-160. [DOI: 10.1007/s11282-017-0293-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/20/2017] [Indexed: 11/26/2022]
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Hirahara N, Muraoka H, Noda M, Muramatsu T, Tokunaga S, Kaneda T. Change in the Magnetic Resonance Imaging Signal of the Mandibular Condyle Due to Bisphosphonate-Related Osteonecrosis of the Jaw. J HARD TISSUE BIOL 2017. [DOI: 10.2485/jhtb.26.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Naohisa Hirahara
- Department of Radiology, Nihon University School of Dentistry at Matsudo
| | - Hirotaka Muraoka
- Department of Radiology, Nihon University School of Dentistry at Matsudo
| | - Marie Noda
- Department of Radiology, Nihon University School of Dentistry at Matsudo
| | - Teruaki Muramatsu
- Department of Radiology, Nihon University School of Dentistry at Matsudo
| | - Satoshi Tokunaga
- Department of Radiology, Nihon University School of Dentistry at Matsudo
| | - Takashi Kaneda
- Department of Radiology, Nihon University School of Dentistry at Matsudo
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Identifying MRONJ-affected bone with digital fusion of functional imaging (FI) and cone-beam computed tomography (CBCT): case reports and hypothesis. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 123:e106-e116. [PMID: 28108142 DOI: 10.1016/j.oooo.2016.11.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/11/2016] [Accepted: 11/21/2016] [Indexed: 01/26/2023]
Abstract
Surgical debridement of medication-related osteonecrosis of the jaw (MRONJ) lesions is far less predictable than lesion resection. Margins for surgical debridement are guided by surrogate markers of bone viability, such as bleeding and bone fluorescence, which limit debridement to visibly necrotic bone. In contrast, surgical resection is extensive, including a substantial portion of surrounding bone. The concept that the MRONJ lesion is a composite of affected but viable ("compromised") and necrotic bone is supported by histopathological data. Hence, removing only the necrotic bone during lesion debridement could inadvertently leave behind residual compromised bone in the lesion, subsequently contributing to persistence or reestablishment of the lesion. Using 2 case reports, this manuscript illustrates a novel assessment of the MRONJ lesion to enable demarcation of both the compromised and necrotic portions of the lesion. This assessment uses tumor-surveillance functional bone imaging data that may already be available for cancer patients with MRONJ and fuses these data digitally with computed tomography/cone-beam computed tomography imaging of the jaw obtained during MRONJ assessment. If validated, preoperative functional imaging-based assessment of the MRONJ lesion could enable surgeons to eliminate both the compromised and nonviable portions of the lesion precisely with conservative debridement, matching surgical resection in outcome.
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Imaging features of medicine-related osteonecrosis of the jaws: comparison between panoramic radiography and computed tomography. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 122:e69-76. [DOI: 10.1016/j.oooo.2016.04.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 04/04/2016] [Accepted: 04/12/2016] [Indexed: 01/09/2023]
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Klingelhöffer C, Klingelhöffer M, Müller S, Ettl T, Wahlmann U. Can dental panoramic radiographic findings serve as indicators for the development of medication-related osteonecrosis of the jaw? Dentomaxillofac Radiol 2016; 45:20160065. [PMID: 27213837 DOI: 10.1259/dmfr.20160065] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The purpose of this case-control study was to find a correlation between certain imaging findings in dental panoramic radiographs and the risk for developing a medication-related osteonecrosis of the jaw (MRONJ) in patients taking antiresorptive therapy (AT). METHODS Randomized and blinded dental panoramic radiographs of 60 patients undergoing antiresorptive drug treatment (36 patients with MRONJ, 24 patients without MRONJ) and of 60 patients without AT were analyzed by 3 experts for the following signs: sequestrum, osteosclerosis, difference in sclerosing of alveolar process and body of mandible, visible alveolar socket, enhancement and loss of lamina dura, enhancement of the oblique ridge, enhancement of the mandibular canal, proliferative periostitis and osteolytic processes at the cortex. RESULTS Signs were seen significantly more often in patients undergoing AT than in the control group (CG) (osteosclerosis p-value = 0.019, visible alveolar socket p-value = 0.001, enhancement of lamina dura p-value < 0.001, enhancement of the mandibular canal p-value = 0.025, proliferative periostitis p-value = 0.05 and osteolytic processes at the cortex p-value < 0.001). While there is no significant difference between the CG and the group of patients with AT without manifest MRONJ for any sign, the significance increases when taking the group of patients under AT with manifest MRONJ into consideration. In addition, if medication was administered for malignant reasons, the signs visible alveolar socket, enhancement of the lamina dura and the enhancement of the mandibular canal were seen significantly more often. CONCLUSIONS The radiographic findings mentioned above are not indicators for the development of MRONJ, as they are seen only in patients with manifest osteonecrosis. However, these findings could be important to assess the dimension and potency of a MRONJ.
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Affiliation(s)
- Christoph Klingelhöffer
- Department of Cranio- and Maxillo-facial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Manja Klingelhöffer
- Department of Cranio- and Maxillo-facial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Steffen Müller
- Department of Cranio- and Maxillo-facial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Tobias Ettl
- Department of Cranio- and Maxillo-facial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Ulrich Wahlmann
- Department of Cranio- and Maxillo-facial Surgery, University Hospital Regensburg, Regensburg, Germany
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Voss P, Ludwig U, Poxleitner P, Bergmaier V, El-Shafi N, von Elverfeldt D, Stadelmann V, Hövener JB, Flügge T. Evaluation of BP-ONJ in osteopenic and healthy sheep: comparing ZTE-MRI with µCT. Dentomaxillofac Radiol 2016; 45:20150250. [PMID: 26846710 DOI: 10.1259/dmfr.20150250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Bisphosphonate-associated osteonecrosis of the jaw (BP-ONJ) is a side effect of antiresorptive treatment that is increasingly prescribed for patients with osteoporosis or malignant diseases with bone metastases. Surgical treatment of BP-ONJ requires adequate pre-operative imaging. To date, CT is the imaging standard in clinical routine; however, defining the extent of the pathological area is difficult and soft tissues are poorly displayed. MRI with zero echo time (ZTE-MRI) to display hard tissues enables a precise display of calcified structures and soft tissues for the delineation of bone necrosis and soft-tissue reactions. METHODS BP-ONJ was induced in eight sheep by extraction of two premolars in the left mandible and zoledronate (ZOL) administration. Eight sheep without ZOL administration served as the control group. Four sheep of each main group underwent osteopenia induction via ovariectomy, glucocorticoid administration and a calcium-free diet. After sacrifice, the area of tooth extraction was harvested and scanned with micro-CT (µCT) and ZTE-MRI. Two trained dentists analyzed digital imaging and communications in medicine data sets using three-dimensional imaging software. The periosteal reaction and the remaining extraction sockets were measured. RESULTS BP-ONJ was evident, and the remaining extraction sockets were observed in all animals treated with ZOL. Periosteal reactions were more pronounced in animals treated with ZOL, and they appeared broader in ZTE-MRI. CONCLUSIONS BP-ONJ lesions in the sheep mandible can be detected using µCT and ZTE-MRI. Although illustration of sequester was more consistent using the µCT, ZTE-MRI was advantageous in evaluation of periosteal reaction.
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Affiliation(s)
- Pit Voss
- 1 Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Freiburg, Germany
| | - Ute Ludwig
- 2 Medical Physics, Department of Radiology, University Medical Center Freiburg, Freiburg, Germany
| | - Philipp Poxleitner
- 1 Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Freiburg, Germany.,3 AO Research Institute, Davos, Switzerland
| | - Veronika Bergmaier
- 1 Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Freiburg, Germany
| | - Nora El-Shafi
- 1 Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Freiburg, Germany
| | - Dominik von Elverfeldt
- 2 Medical Physics, Department of Radiology, University Medical Center Freiburg, Freiburg, Germany
| | | | - Jan-Bernd Hövener
- 2 Medical Physics, Department of Radiology, University Medical Center Freiburg, Freiburg, Germany
| | - Tabea Flügge
- 1 Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Freiburg, Germany
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Silva PGDB, Ferreira Junior AEC, Teófilo CR, Barbosa MC, Lima Júnior RCP, Sousa FB, Mota MRL, Ribeiro RDA, Alves APNN. Effect of different doses of zoledronic acid in establishing of bisphosphonate-related osteonecrosis. Arch Oral Biol 2015; 60:1237-45. [PMID: 26093347 DOI: 10.1016/j.archoralbio.2015.05.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 05/13/2015] [Accepted: 05/24/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVES To establish osteonecrosis of the jaws in rats treated with different doses of zoledronic acid (ZA). METHODS Male Wistar rats (n=6-7) received three consecutive weekly intravenous ZA infusions at doses of 0.04, 0.20 or 1.00mg/kg ZA or saline (control). Four weeks after the last administration, the animals were submitted to simple extraction of the lower left first molar. An additional dose of ZA was administered seven days later, and the animals were sacrificed 28 days after exodontia. Weight was measured and blood was collected weekly for analysis. The jaw was radiographically and microscopically examined along with the liver, spleen, kidney and stomach. RESULTS All ZA doses showed a higher radiolucent area than the control (p<0.0001), but the dose of 0.04mg/kg did not show BRONJ. Doses of 0.20 and 1.00mg/kg ZA showed histological evidence of bone necrosis (p=0.0004). Anaemia (p<0.0001, r(2)=0.8073) and leucocytosis (p<0.0001, r(2)=0.9699) are seen with an increase of lymphocytes (p<0.0001, r(2)=0.6431) and neutrophils and monocytes (p=0.0218, r(2)=0.8724) in all the animals treated with an increasing dose of ZA. Haemorrhage and ectasia were observed in the spleen (p=0.0004) and stomach (p=0.0168) in a dose-dependent manner, and the animals treated with ZA showed a lower rate of weight gain (p<0.0001). CONCLUSIONS We designed a bisphosphonate-related osteonecrosis of the jaw model that reproduces radiographic and histological parameters and mimics clinical alterations such as leucocytosis, anaemia and idiosyncratic inflammatory post infusion reactions.
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Affiliation(s)
- Paulo Goberlânio de Barros Silva
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil.
| | - Antonio Ernando Carlos Ferreira Junior
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Carolina Rodrigues Teófilo
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Maritza Cavalcante Barbosa
- Department of Clinical Analysis, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | | | - Fabrício Bitú Sousa
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | - Mário Rogério Lima Mota
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
| | | | - Ana Paula Negreiros Nunes Alves
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceara, Fortaleza, Ceara, Brazil
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Karlsson J, Harmankaya N, Allard S, Palmquist A, Halvarsson M, Tengvall P, Andersson M. Ex vivo alendronate localization at the mesoporous titania implant/bone interface. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:5337. [PMID: 25577217 DOI: 10.1007/s10856-014-5337-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 07/31/2014] [Indexed: 06/04/2023]
Abstract
An attractive approach in implant technology is local drug delivery, and design of efficient, safe and reliable treatments. Our hitherto strategy has been to coat Ti implants with a thin mesoporous TiO2 film that in turn is loaded with an osteoporosis drug, such as Alendronate (ALN) that is known to suppress osteoclastic activity. This system has proven highly successful and results in excellent osseointegration. However, more detailed information about drug-release and distribution at the bone/implant interface is needed. In this study, (14)C-ALN loaded titanium implants were placed up to 8 weeks into rat tibia and the spatial-temporal distribution of the drug was evaluated. Autoradiography data demonstrated a sustained release of (14)C-ALN and the released drug remained bound to bone in close vicinity, within 500 micrometers, of the implants. Liquid scintillation counting experiments confirmed that the distal transport of released (14)C-ALN was extremely low. The results are favorable as they show that ALN stays for a long time in the vicinity of the implant and may therefore improve for a long time the mechanical fixation of bone anchored implants. Moreover, these findings suggest due to the low systemic spreading a minimal risk of Alendronate related systemic side effects.
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Affiliation(s)
- Johan Karlsson
- Department of Chemical and Biological Engineering, Applied Chemistry, Chalmers University of Technology, Kemivägen 10, 412 96, Gothenburg, Sweden,
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