Evaluation of vascularized graft reconstruction of the mandible with Tc-99m MDP bone scintigraphy

Annals of Nuclear Medicine
Gulgun BuyukdereliErol Kesiktas

Abstract

The aim of this study was to evaluate the value of bone scintigraphy for the assessment of graft viability following vascularized bone grafts in patients with mandibular reconstruction. We investigated 16 patients with vascularized grafts from the fibula (13 patients) and iliac crest (3 patients) in the last 8 years. For the follow up of all these patients, Tc-99m MDP bone scintigraphy was performed between 2-10 days postoperatively. SPECT study was included in 5 patients. For the evaluation of the grafts, a six-grade scoring system was used. The grading system was based on a comparison of tracer uptake between graft and the cranium. The uptake was defined as increasing from grade 6 to grade 1. Thirteen of the 16 grafts had an uncomplicated clinical course. Complications in the graft occurred in three patients. In the analysis of planar scintigrams, patients with uncomplicated healing showed increased uptake in 12 of the 13 grafts (grade 1-3) and 1 showed the same level tracer uptake compared to cranium (grade 4). In the failed 3 grafts, decreased uptake was observed (grade 5 and 6). In 5 patients, SPECT was performed in addition to planar imaging. In these patients, 4 of the 5 grafts had an uncomplicated clinical course and 1 ...Continue Reading

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Citations

Apr 10, 2010·Annals of Nuclear Medicine·Nobuyoshi FukumitsuGen-yuki Yamane
Apr 5, 2014·Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus·Nilufer IlhanEsra Ayhan Tuzcu
Oct 1, 2019·The Journal of Bone and Joint Surgery. American Volume·Jing LiZhen Wang
Jul 10, 2014·The Journal of Craniofacial Surgery·James L MayoMichael H Moses
Dec 19, 2019·Tissue Engineering. Part C, Methods·Patricia CarlisleTeja Guda
Nov 26, 2019·The Journal of Bone and Joint Surgery. American Volume·Jing LiZhen Wang
Mar 14, 2013·Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine·Ka Kit Wong, Morand Piert

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