Hou T S, Tu K Y, Xu Y K, Zhang W M, Wang H C, Wang D L
Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai.
Chin Med J (Engl). 1990 May;103(5):396-9.
The effect on the stability of the lumbar motion segment, as affected by partial discectomy, was investigated using three-dimensional motion measurement technique. Eight functional spinal units from fresh cadaver lumbar spines were potted and clinically relevant loads applied through a special loading frame attached rigidly to the top vertebra of the specimen. Partial discectomy was performed on the right side of the specimen. The three-dimensional motions of each lumbar motion segment, before and after partial discectomy, were recorded. The results showed that partial discectomy significantly affects the stability of lumbar spinal motion segments. The clinical relevance of this finding is discussed.
采用三维运动测量技术研究了部分椎间盘切除术对腰椎运动节段稳定性的影响。取自新鲜尸体腰椎的八个功能性脊柱单元被固定，并通过一个牢固连接到标本顶部椎体的特殊加载框架施加与临床相关的负荷。在标本右侧进行部分椎间盘切除术。记录了部分椎间盘切除术前、后每个腰椎运动节段的三维运动。结果表明，部分椎间盘切除术显著影响腰椎运动节段的稳定性。并讨论了这一发现的临床意义。
