When a person bends forward, 50% of the motion occurs at the hips, but the remaining 50% involves the lumbar spine. The force exerted in bending is not evenly divided among the five lumbar vertebrae; the segments between the third and fourth lumbar vertebrae (L3-L4) and the fourth and ...
A total laminectomy was simulated at L4 or L5. Flexion, extension and lateral bending were applied using pure moment. Rotations were obtained under each loading mode. Maximum von Mises stresses in the annulus fibrosis under different loading were also obtained. It was found that L5 laminectomy ...
Member has failed at least 6 weeks of conservative therapyFootnote1* (unless there is evidence of cervical cord compression or other indications for waiver of requirements for conservative management, noted below); and Member's activities of daily living are limited by symptoms of neural compression...
Define laminectomy. laminectomy synonyms, laminectomy pronunciation, laminectomy translation, English dictionary definition of laminectomy. n. pl. lam·i·nec·to·mies Surgical removal of the posterior arch of a vertebra. American Heritage® Dictionar
The type of vascular lesion was: laceration of the left common iliac vein (LCIV), laceration of the inferior vena cava (IVC), laceration of the right common iliac artery (RCIA) and pseudoaneurysm of the abdominal aorta (PAA). The site of the laminectomy was L5-S1 in two cases and L4...
In laminectomy, the lamina and spinous processes of lower L4 and upper L5 are removed by rongeur and Kerrison clampChingLung TaiPangHsing HsiehWengPin ChenLihHuei ChenWenJer ChenPoLiang Lai
Following technique development, six live sheep underwent a piezoelectric (n = 6) two-level dorsal laminectomy at L2-L3 and L4-L5 (PiezoL2-3,4-5), and another 30 live sheep underwent a three-level laminectomy at L1, L3, and L5 (PiezoL1,3,5) for a total of 102 laminectomy sites. ...
Materials and methods We performed a laminectomy in the L4-L5 space in 24 rabbits, distributed into 2 groups, which were put down at 2 and 4 weeks respectively. The study group received a 5 mg/kg daily dose of aceclofenac for 7 days. Rabbits in the control groups were injected saline ...
The purpose of this study is to analyze the possible deterioration of physiologic behavior at L4–L5 and L5–S1 levels. From the experimental point of view, these results allow one to reflect on the influence of some anatomic details on the intimate biomechanic relationships of these functional ...
Using three cases from our experience and adding illustrations, x-ray films, and descriptive text we have precisely defined the anatomy of the major vessels at the L3–4, L4–5, and L5-S1 disc interspaces. This information will not only aid the surgeon in the repair of the chronic ...