Zindrick M R
Department of Orthopedics and Rehabilitation, Loyola University, Maywood, Illinois.
Orthop Clin North Am. 1991 Apr;22(2):333-44.
Transpedicular fixation devices are extremely useful tools to achieve stabilization of the lumbosacral spine. The indications for the use of these systems are still evolving. These systems are able to obtain rigid fixation in vertebra lacking posterior elements, obtain solid sacral fixation, connect vertebra without distraction and maintain lordosis, fuse short spinal segments, and preserve motion segments. Stable, short segment constructs can be achieved even in the face of the most radical decompressions and vertebral resection. This technique is not, however, without risks. A thorough understanding of pedicle anatomy, pedicle screw insertion technique, fusion biology, and biomechanical considerations are paramount to achieve safe stabilization of the lumbosacral spine with this technique.
经椎弓根固定装置是实现腰骶椎稳定的极为有用的工具。这些系统的使用指征仍在不断演变。这些系统能够在缺乏后部结构的椎体中获得牢固固定，实现坚实的骶骨固定，在无撑开的情况下连接椎体并维持腰椎前凸，融合短节段脊柱，以及保留活动节段。即使面对最彻底的减压和椎体切除，也能实现稳定的短节段结构。然而，这项技术并非没有风险。透彻了解椎弓根解剖结构、椎弓根螺钉置入技术、融合生物学以及生物力学因素，对于采用该技术安全稳定腰骶椎至关重要。
