Steffee A D, Sitkowski D J
St. Vincent Charity Hospital, Cleveland, Ohio 44115.
Clin Orthop Relat Res. 1988 Feb;227:82-9.
Virtually any degree of spondylolisthesis can be reduced and held using variable screw placement (VSP) slotted plates and transpedicular screws. All of the soft tissue holding the displaced vertebrae must be stretched prior to pulling the vertebrae back into normal alignment. Complete control of the displaced vertebrae is gained through the transpedicular screws, and fixation is accomplished by bolting the screws to the spine plates that have been bent to achieve the proper lumbar lordosis. Ultimate stability is gained by both a bilateral lateral and interbody fusion.
实际上，任何程度的椎体滑脱都可以通过使用可变螺钉置入（VSP）开槽钢板和椎弓根螺钉来复位并固定。在将移位的椎体拉回正常对齐之前，必须拉伸所有固定移位椎体的软组织。通过椎弓根螺钉实现对移位椎体的完全控制，并通过将螺钉固定到已弯曲以获得适当腰椎前凸的脊柱钢板上来完成固定。通过双侧外侧融合和椎间融合实现最终的稳定性。
