Effect of Facetectomy on Lumbar Spinal Stability Under Sagittal Plane Loadings

Abstract

Clinically, this study suggests that it may be appropriate to incorporate additional stabilization procedure in restoring the spinal strength and stability for surgical intervention of unilateral complete facetectomy and resection on contralateral facet. The exploitation of the finite-element method to simulate clinically related situations permits an improved understanding of lumbar spinal stability to assist in defining clinical expectation for various forms of surgical intervention of the operative procedures.

Risk Factors of Pedicle Fixation Instability at Patients With Degenerative Lumbar Spine Pathology

“…Одним из наиболее важных факторов, вли-яющих на сохранение стабильности имплантов после декомпрессивно-стабилизирующих опера-тивных вмешательствах, является качество кост-ной ткани, что было неоднократно подтвержде-но результатами исследований [6,13,14]. Тем не менее способы оценки костной плотности в опубликованных работах отличаются: чаще всего с ýтой целью применялась денситометрия, коли-чественная компьютерная томография, и радио-денсивность костной ткани, определенная при КТ, использовались реже [6,7,14].…”

Percutaneous three column osteotomy for kyphotic deformity correction in congenital kyphosis

“…Therefore, significant blood loss during open spine surgery [1][2][3] contributes to the relatively high complication rate of up to 30 % following osteotomies [4]. Because the osteotendinous complex of the spinal column serves as a dynamic stabilizer [5], disruption during exposure might contribute to a higher risk of adjacent level diseases [6,7].…”

Coupled rotations in the lumbar spine—are these a consequence of passive spinal anatomy?

“…Lund et al [3] demonstrated a difference in coupled rotations between asymptomatic subjects and chronic low back pain patients. Coupled motions have also been investigated post-surgery, with both Lee et al [4] and Natarajan et al [5] finding a change in coupled rotations following facetectomy.…”

“…Previous clinical studies have found that primary rotations in the lumbar spine are accompanied by coupled out-of-plane rotations [1][2][3][4][5]. Pearcy [1] used biplanar radiography to measure in vivo three-dimensional rotations of the lumbar spine when healthy subjects actively rotated to their limits of lumbar motion.…”