Spine
-
Prospective observational cohort study. ⋯ The critical degree of spinal cord compression needed to induce clinically significant signs was found between 50 and 60 mm2 of cross-sectional transverse area at the level of maximal compression in association with MRI hyperintensities.
-
Comparative Study
Changes in intraocular pressure due to surgical positioning: studying potential risk for postoperative vision loss.
Parallel group design. ⋯ IOP increases in the prone Trendelenburg's position, and when combined with other factors, may be a risk factor for PVL. The pathophysiology is discussed and suggestions for clinicians are made.
-
Comparative Study
Traction versus supine side-bending radiographs in determining flexibility: what factors influence these techniques?
Prospective clinical, radiologic study of adolescent idiopathic scoliosis (AIS). ⋯ In addition to a Cobb angle, patient age, the level of the apex, and the number of involved vertebrae also influence the conditions under which the corrective ability of traction radiographs is superior to that of side-bending radiographs.
-
Comparative Study
Aggrecanases and aggrecanase-generated fragments in the human intervertebral disc at early and advanced stages of disc degeneration.
A comparative study of aggrecanases and aggrecan fragmentation profile in the human intervertebral disc at early and advanced stages of disc degeneration. ⋯ Aggrecanases are involved in aggrecanolysis at both the early and advanced stages of disc degeneration. The aggrecan fragmentation profile analysis demonstrates the involvement of aggrecanases, as well as that of matrix metalloproteinases and/or cathepsins, during disc degeneration.
-
A case report. ⋯ Although technically demanding, C1-C2 transpedicular screw fixation combined with interspinous bone graft wiring after open reduction may be an alternative treatment option if conservative treatment fails to reduce AARF.