title: Three-phase bone scintigraphy and viability of vascularized bone grafts for mandibular reconstruction.
abstract: Three-phase bone scintigraphy was undertaken to check the anastomotic patency and monitor the viability of vascularized bone grafts. Ten consecutive patients who underwent vascularized bone grafting of the mandible were reviewed. A successful clinical outcome was achieved in 8 patients. The graft failed in 2 patients. In this series, 3-phase bone scintigraphy of radiolabeled (99m)Tc-methylene-diphosphonate was performed at 7 days, and at 1, 3, 6, and 12 months after reconstruction. Assessments made using 3-phase bone images were compared with the clinical findings. The clinical outcome of the cases presented in our series correlated extremely well with 3-phase bone images. Three-phase bone scintigraphy is a useful method for the assessment of patency and viability of vascularized bone grafts. The use of this method can be very helpful in assessing the anastomotic patency and viability of a graft which for clinical reasons is suspected of being non-viable.
authors.affiliation: Department of Oral Surgery I, School of Dentistry, Hokkaido University, Sapporo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Harada
authors.forename: S
authors.initials: S
authors.lastname: Takinami
authors.forename: S
authors.initials: S
authors.lastname: Makino
authors.forename: H
authors.initials: H
authors.lastname: Kitada
authors.forename: T
authors.initials: T
authors.lastname: Yamashita
authors.forename: K
authors.initials: K
authors.lastname: Notani
authors.forename: H
authors.initials: H
authors.lastname: Fukuda
authors.forename: M
authors.initials: M
authors.lastname: Nakamura
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical; D016025:Bone Transplantation / Q000000981:diagnostic imaging* / Q000502:physiology; D002294:Carcinoma, Squamous Cell / Q000601:surgery; D005260:Female; D006085:Graft Survival; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery*; D008336:Mandibular Diseases / Q000601:surgery; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000601:surgery; D010025:Osteoradionecrosis / Q000601:surgery; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate; D014654:Vascular Patency
chemical_list: D019275:Radiopharmaceuticals; D013669:Technetium Tc 99m Medronate