Radiological Evaluation of the Initial Fixation between Cortical Bone Trajectory and Conventional Pedicle Screw Technique for Lumbar Degenerative Spondylolisthesis.

ABSTRACT:

Study design

Retrospective study.

Purpose

To compare initial fixation using the cortical bone trajectory (CBT) technique versus conventional pedicle screws (PS) in radiographs of postsurgical lumbar degenerative spondylolisthesis.

Overview of literature

Few reports have documented the holding strength of CBT technique for spondylolisthesis cases.

Methods

From October 2009 to June 2014, 21 cases of degenerative spondylolisthesis were surgically treated in our institution. Ten were treated with conventional PS technique and 11 of with CBT technique. Mean lumbar lordosis and percent slippage were evaluated preoperatively, immediately after surgery, and 6 months and 1 year postoperatively using radiographs. We also investigated percent loss of slip reduction.

Re

SUBMITTER: Ninomiya K 

PROVIDER: S-EPMC4843061 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature