Comparison of facet fusion rates and clinical outcomes between cortical bone trajectory screw and percutaneous pedicle screw fixation for degenerative lumbar spondylolisthesis

Cortical bone trajectory (CBT) screws have been introduced as an alternative technique for pedicle screw (PS) insertion because they have greater contact with the cortex and a greater uniaxial pullout load than traditional PS [1,2]. CBT screwing can also minimize muscle dissection [3]. As a minimally invasive evolution of posterolateral fusion, we discovered that facet fusion (FF) using a percutaneous PS (PPS) inserted through the fascia (PPS-FF) produced positive clinical outcomes for degenerative lumbar spondylolisthesis (DLS) [4].
Source: The Spine Journal - Category: Orthopaedics Authors: Tags: Clinical Study Source Type: research