lateral canal
2.The distance between the frontal and trochlear nerves in the cranial orifice of lateral area was (2.46±0.59)mm, and the distance between the abducens and nasociliary nerves in the cranial orifice of central area was (1.96±0.72)mm, and the smallest distance between the abducens nerves of the lateral area and the optic canal was (9.32±0.85) mm in the section of the OA region.
3.[HT5”H]Results [HT5”SS]After 1～4 years follow up,excellent results were obtained in 160 cases,good in 78,fair in 3 and poor in 7.[HT5”H]Conclusion [HT5”SS]The operative method has the merits of small wound and early recovery,which is especially suitable for the treatment of LDH with stenosis of lateral recess and nerve root canal.
4.The main levels of lumbar spondylolisthesis in 2 groups was L 4-5 or L 5-S 1. All cases were classified as degree 1 to degree 2. All patients in the two groups received preoperative myelography or CTM, and were diagnosed lateral recess stenosis and(or) central lumbar canal stenosis. Results All the patients were followed up from 12 to 72 months.
8.High impact energy resulted in following three kinds of fractures, just as the classification of Denis: sacral ala fractures belonged to typeⅠfractures, sacral hiatus fractures to type Ⅱ fractures and central vertebral canal fractures to type Ⅲ fractures. All three types of fractures might involve lateral or bilateral nerve roots.
