Mandibular Reconstruction by Using a Liquid Nitrogen-Treated Autograft in a Dog with an Oral Tumor

Okamura, Yasuhiko; Heishima, Kazuki; Motegi, Tomoki; Sasaki, Jun; Goryo, Masanobu; Nishida, Hideji; Tsuchiya, Hiroyuki; Katayama, Masaaki; Uzuka, Yuji

doi:10.5326/JAAHA-MS-6339

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Case Reports| May 01 2017

Mandibular Reconstruction by Using a Liquid Nitrogen-Treated Autograft in a Dog with an Oral Tumor

Yasuhiko Okamura, DVM, PhD;

Yasuhiko Okamura, DVM, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

*Y. Okamura's present affiliation is the Department of Comparative Animal Science, College of life science, Kurashiki University of Science and Arts, Kurashiki, Japan.

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Kazuki Heishima, DVM, PhD;

Kazuki Heishima, DVM, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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Tomoki Motegi, DVM;

Tomoki Motegi, DVM

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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Jun Sasaki, DVM, PhD;

Jun Sasaki, DVM, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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Masanobu Goryo, DVM, PhD;

Masanobu Goryo, DVM, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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Hideji Nishida, MD, PhD;

Hideji Nishida, MD, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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Hiroyuki Tsuchiya, MD, PhD;

Hiroyuki Tsuchiya, MD, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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Masaaki Katayama, DVM, PhD;

Masaaki Katayama, DVM, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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Yuji Uzuka, DVM, PhD

From the Cooperative Department of Veterinary Medicine, Faculty of agriculture, Iwate University, Morioka, Japan (Y.O., J.S., M.G., M.K., Y.U.); the United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan (K.H.); Department of Veterinary Medicine, Faculty of Agriculture, University of Tokyo, Tokyo, Japan (T.M.); and the Department of Orthopaedic Surgery and Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan (H.N., H.T.).

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J Am Anim Hosp Assoc (2017) 53 (3): 167–171.

https://doi.org/10.5326/JAAHA-MS-6339

ABSTRACT

A 10 yr old intact female German shepherd dog presented with a large peripheral odontogenic fibroma and malignant melanoma on her lower jaw. The tumor was resected with a unilateral subtotal rostral hemimandibulectomy. After the mandible was removed, it was devitalized intraoperatively by freezing it in liquid nitrogen. It was subsequently reimplanted. New bone tissue formed in the gap between the frozen bone and the host bone. The regenerated bone contained osteocytes, osteoblasts, and blood vessels. The cosmetic appearance of the dog was preserved. The dog had normal mastication. The malignant melanoma recurred rostral of the left canine tooth at 159 days after the reconstruction surgery. A subtotal hemimandibulectomy was consequently performed. This is the first reported case of mandibular reconstruction using a liquid nitrogen-treated autograft in a dog with oral tumors.

2017

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