OBJECTIVES To quantitatively analyzing the anatomic variants on temporal computed tomography (CT) in congenital external auditory canal stenosis (EACS), congenital aural atresia (CAA), and normal ear structure. METHODS Through a retrospective study, we analyzed 142 temporal high-resolution CT studies performed in 71 microtia patients. The following 6 parameters were compared among the three g...

The ratio of the sagittal diameter of the cervical canal to the corresponding diameter of the vertebral body has been described as a reliable means for assessing stenosis of the canal and detecting those at risk of cervical neuropraxia. The use of ratio techniques has the advantage of avoiding variation in magnification when direct measurements are made from plain radiographs. We examined the r...

OBJECTIVE To evaluate the effectiveness of the In- space (Synthes, Umkirch, Germany) and the correlation between radiographic parameters and clinical outcome in patients with lumbar spinal canal stenosis (LSS). METHODS Between June 2009 and May 2013, 56 patients with LSS underwent In-space by one senior surgeon. All of the patients were evaluated both clinically and radiographic measurements ...

Most surgery is designed to relieve compression of the spinal cord or spinal nerve roots. Reduction in the bore of the vertebral spinal or root canals (spinal stenosis) can occur in many conditions, and some patients have congenitally narrow canals. Osteophytic projections at the intervertebral joints (cervical spondylosis) are the commonest problem. Tumours, infection, trauma, disc protrusions...

Background: Grading stenosis based on morphology of the dural sac on MRI rather than surface measurements defines stenosis in various topics. To study the relations between the grading stenosis and the severity of clinical symptoms of spinal stenosis in patients diagnosed with lumbar spinal canal stenosis (LSCS). Methods: Patients diagnosed with lumbar spinal stenosis who were candidate for sur...

Review scope Included studies compared epidural corticosteroid injections with placebo (administration of an inert or innocuous substance into the epidural space or adjacent spinal tissue) in patients with sciatica. Studies had to report ≥ 1 of overall pain intensity, leg pain intensity, back pain intensity, or disability status. Corticosteroids could be delivered into the epidural space by any...

A clinico-radiological analysis of 74 cases of ossification of the posterior longitudinal ligament is reported. Eighteen cases (24%) were asymptomatic or only had neck or shoulder pain; 16 cases (22%) showed signs of radiculopathy, and the remaining 40 cases (54%) had myelopathy. Ossification of the posterior longitudinal ligament developed most frequently at C5, and was rare in thoracic and lu...

The redundant nerve root syndrome is defined as the association of high-grade extradural lumbar spinal stenosis with large, elongated and tortuous nerve roots. Acquired elongation of nerve roots due to the mechanical trapping at the level of lumbar spinal stenosis is assumed to be the possible mechanism. It is believed that the cause is a squeezing force due to the chronic compression. The most...

Lumbar spinal stenosis is a disease with negative consequences and usually occurs in 3 vertebrae, disc canal located the lower back. In this region, nerves can be exposed to pressure for various reasons, diseases occur. Surgical operation required treat narrowing, exact location size of vital importance operation. The UNet model, which an example network, further deeper using different deep lea...

The spinal canal diameter (SCD) is one of the most studied factors for the assessment of cervical spinal canal stenosis. The inner anteroposterior diameter (IAP), the SCD, and the cross-sectional area (CSA) of the atlas have been used for the evaluation of the size of the atlas in patients with atlas hypoplasia, a rare form of developmental spinal canal stenosis, however, there is little inform...