Opioid sparing anaesthesia using dexmedetomidine in a morbidly obese patient with mandibular tumor requiring free fibular graft reconstruction surgery

A 45 year old male diagnosed as a case of Ameloblastoma mandible, requiring mandibular reconstruction with a Free Fibular Flap graft was planned under general anaesthesia (GA).

Precision of customized surgical osteotomy guide (CSOG) in mandibular reconstruction with a customized implant

Purpose This study aims to find the usefulness of the customized surgical osteotomy guide (CSOG) for accurate mandibular tumor resection for boosting the accuracy of prefabricated customized implant fixation in mandibular reconstructions. Design/methodology/approach In all, 30 diseased mandibular RP models (biomodels) were allocated for the study (for experimental group [n = 15] and for control group [n = 15]). To reconstruct the mandible with customized implant in the experimental group, CSOGs and in control group, no CSOG were used for accurate tumor resections. In control group, only preoperative virtual surgical planning (VSP) and reconstructed RP mandible model were used for the reference. Individually each patient’s preoperative mandibular reconstructions data of both the groups were superimposed to the preoperative VSP of respective patient by registering images with the non-surgical side of the mandible. In both the groups, 3D measurements were taken on the reconstructed side and compared the preoperative VSP and postoperative reconstructed mandible data. The sum of the differences between pre and postoperative data was considered as the total error. This procedure was followed for both the groups and compared the obtained error between the two groups using statistical analysis. Findings The use of CSOG for accurate tumor resection and exact implant fixation in mandibular reconstruction produced a smaller total error than without using CSOG. Originality/value The results showed that, benefits provided with the use of CSOG in mandibular reconstruction justified its use over the without using CSOG, even in free hand tumor resection using rotating burr.

Central giant-cell granuloma located in the mandibular symphyseal region of a child

Introduction: Central giant-cell granuloma (CGCG) is a rare mandibular tumor. The originality of this case lies in its clinical presentation, with a delay in treatment despite a significant aesthetic impact. Observation: An 8-year-old boy whose chin had been swelling for three (3) months was referred to have a consultation. The medical imaging examination revealed a well-defined osteolytic lesion of about 3 cm and round in shape. The lesion was surgically treated by enucleation. The anatomopathological examination provided evidence of a CGCG. Conclusion: Postoperative period was aesthetically acceptable, there were no nervous or dental lesions and no relapse at the 6-month follow-up.

Primary hyperparathyroidism-Jaw tumor syndrome: a confusing and forgotten diagnosis

Background. Primary hyperparathyroidism is caused by the excessive growth of parathormone secretion, its consequence being hypercalcemia. The parathyroid adenoma is responsible for over half of primary hyperparathyroidism cases. The mandibular tumor can be the initial sign in the case of primary hyperparathyroidism.Case presentation. We present the case of a 33 year old patient with history of a mandibular operated tumor, repetitive pathological fractures and hypercalcemia manifestations. The level of the parathormone at the first measurement indicated a very high value. The parathyroid scintigraphy with 99mTc-MIBI (methoxy-isobutyl-isonitrile) evidenced a high uptake of the tracerin the superior mediastinum, suggestive for an ectopic parathyroid adenoma. The histopathological examination after surgery leads to the diagnosis of parathyroid adenoma. The association between the primary hyperparathyroidism, the mandibular tumour, the clinical history and the nuclear imaging lead to the diagnosis of primary hyperparathyroidism – Jaw tumor syndrome.Conclusion. The hyperparathyroidism-Jaw tumor syndrome has a special clinical importance because of the severe and progressive symptomatology, and because of the risk of developing neoplasia of parathyroid glands, which have a reserved prognosis.