Diagnostic value of ultrasonography in the evaluation of the temporomandibular joint anterior disc displacement.

The aim of the study was to evaluate the extent of agreement between the findings of ultrasonography (US) and magnetic resonance imaging (MRI) in the assessment of anterior disc displacement (ADD), with or without reduction, and to assess the sensitivity, specificity and the accuracy of the US examination in establishing diagnosis. Fifty-two temporomandibular joints (TMJ) in 52 patients with chronic TMJ pain were examined by US and MRI with respect to ADD, with, and without reduction of the TMJ. The level of agreement between US and MRI findings was evaluated.

Effects of vascular bundle implantation on autograft, fresh-frozen allograft, and xenograft incorporation in a rabbit model.

This study examined the effects of vascular bundle implantation into a bone graft. Vascularized and nonvascularized autografts, allografts, and xenografts were placed inside defects in the proximal tibia in rabbits. Evaluation using radiographs, magnetic resonance imaging, bone scintigraphy, and microscopy showed autografts fused more rapidly than allografts and xenografts, and the majority of the vascularized grafts were incorporated completely.

The role of extruded disk material in thoracolumbar intervertebral disk disease: a retrospective study in 40 dogs.

The objective of the study was to determine the effect of the dispersed or nondispersed form of the extruded disk material (EDM) on the neurological status and surgical outcomes in Hansen thoracolumbar intervertebral disk disease Type I (IVDD-I). Medical records of 40 dogs with IVDD-I were reviewed, including neurologic status on admission, findings on magnetic resonance imaging (MRI), intraoperative findings, and surgical outcomes. In MRI evaluations, EDM was on the right in 16, on the left in 18, and centrally in 6 cases; in all cases, findings were confirmed by surgery.