2 research outputs found
Surgical principles in posterior transpedicular screw fixation and fusion for treatment of spondylolisthesis: Retrospective evaluation of 77 cases
Aim: This study aimed to report our surgical principles and outcomes in patients who
had posterior transpedicular screw fixation and fusion operation with a diagnosis of
spondylolisthesis at our department between 2014 and 2017.
Method: Seventy-seven patients who had internal fixation and posterolateral
fusion operation using lumbar posterior transpedicular screw systems were
retrospectively evaluated. All patients were assessed by dynamic lumbar graphics,
computerized tomography and magnetic resonance imaging prior to surgery.
Posterior decompression, internal fixation with posterior interpeduncular screw, and
posterolateral fusion were applied to all patients. Stabilization systems were evaluated
by lumbar graphics and computerized tomography at the postoperative first day.
Results: All patients who had clinical and radiological evidences of lumbar spinal
instability also had lumbar and/or leg pain and varying levels of neurological deficits.
Mean age of the patients was 52.6 (19-74) years, of whom 10 were male and 67 were
females. Sixty-nine patients had grade I, and 8 patients had grade II spondylolisthesis
according to the Meyerding classification. Nine patients were operated for L3-4, 36
were operated for L4-5, 30 were operated for L5-S1 spondylolisthesis, and 2 patients
had 2 levels of spondylolisthesis. Complaints were decreased postoperatively in all
patients. One patient was reoperated due to a screw on L5, which was out of the
pedicle and caused symptoms. Another 3 patients were reoperated due to breaking
of a unilateral S1 screw.
Conclusion: Internal fixation with posterior transpedicular screw and posterolateral
fusion applications should be preferred for surgical treatment of patients who have
symptomatic and neurologic-deficit causing lumbar spondylolisthesis