الفهرس 
Anatomy of the Lumbar SpineOnly 14 pages are availabe for public view
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Abstract
The use of pedicle screws for spinal stabilization has become increasingly popular worldwide. Pedicle screw systems engage all three columns of the spine and can resist motion in all planes. Several studies suggest that pedicle screw fixation is a safe and effective treatment for many spinal disorders.
Lumbar interbody fusion is also a recognized surgical technique in treatment of degenerative lumbar instability. Interbody fusion supplemented with pedicle screw fixation has several advantages over posterolateral fusion and has been advocated to improve fusion rates and clinical outcomes. Interbody fusion places the bone graft in the load-bearing position of the anterior and middle spinal columns therefor enhancing the potential for fusion. In addition, the interbody space has more vascularity than the posterolateral space, also increasing the potential for a solid fusion mass to form.
Surgical procedures that include both posterolateral and interbody fusion have demonstrated high fusion rates and good clinical results. These procedures have distinct advantages including anterior column load sharing, large surface areas for fusion, restoration of a normal sagittal profile, and the achievement of passive foraminal decompression