Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons
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J. Oral Maxillofac. Surg. · Feb 2009
Randomized Controlled Trial Comparative StudyA randomized controlled trial of superior and inferior temporomandibular joint space injection with hyaluronic acid in treatment of anterior disc displacement without reduction.
To compare the outcome of inferior and superior joint space injection of sodium hyaluronate in patients with disc displacement without reduction of the temporomandibular joint (TMJ). ⋯ This study showed that inferior joint space injection with sodium hyaluronate is a valid method of treating disc displacement without reduction of TMJ and a long-term study will be needed to assess the effect of inferior joint injection on the morphologic changes of the TMJ.
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J. Oral Maxillofac. Surg. · Feb 2009
High resolution magnetic resonance imaging with an orbital coil as an alternative to computed tomography scan as the primary imaging modality of pediatric orbital fractures.
The computed tomography (CT) scan is currently the gold standard in the imaging of orbital fractures. The weak points of this imaging modality, however, include restricted soft tissue depiction as well as the radiation. Both attributes are of particular importance in children because of the high rate of trapdoor fractures and the radiation to the lens. Although magnetic resonance imaging (MRI) is not associated with these drawbacks, it has not been established in the primary diagnosis of pediatric orbital fractures. The aim of our study was to establish the use of MRI with a special orbital coil for the primary diagnosis of pediatric orbital trauma. ⋯ MRI combined with a microscopy orbital coil is a valuable alternative to the CT scan in the primary diagnosis of pediatric orbital fractures. Floor fractures, and particularly muscle incarceration, should be diagnosed by high resolution MRI combined with a microscopy coil instead of CT to avoid radiation to the lens and to obtain a better soft tissue depiction.
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J. Oral Maxillofac. Surg. · Jan 2009
Randomized Controlled TrialThe effect of tranexamic acid on blood loss during orthognathic surgery: a randomized controlled trial.
Tranexamic acid has been used to reduce blood loss and the subsequent need for transfusion in orthopedic, spinal, and cardiac surgery. Orthognathic surgery can be associated with significant bleeding yet its efficacy in this setting is not clear. The purpose of this study was to investigate the effect of tranexamic acid on blood loss during bimaxillary osteotomy. ⋯ Preoperative intravenous bolus administration of tranexamic acid at 20 mg/kg reduces blood loss compared with placebo during bimaxillary osteotomy.