Comparison of radiological changes after single- position versus dual- position for lateral interbody fusion and pedicle screw fixation

• DOI: 10.1186/s12891-019-2992-3
• Publication Date: 2019-12-12T23:02:27Z
• Authors: Akihiko Hiyama; Hiroyuki Katoh; Daisuke Sakai; Masato Sato; Masahiro Tanaka; Masahiko Watanabe
• Keywords: Lateral recess; Prone position

Abstract Background There have been few comparisons between dual positions, which require a position change, and single position, does not it is clear whether there difference in indirect decompression achieved by the two procedures. Therefore, purpose of this study was to compare perioperative radiographic outcomes following lateral lumbar interbody fusion (LLIF) cohorts patients who underwent surgery or position. Methods This involved 45 at 68 levels, with LLIF percutaneous pedicle screw (PPS) fixation for degenerative spondylolisthesis spinal canal stenosis. Patient demographics data were compared groups: remained decubitus (SP group) those turned prone (DP group). Results A total 26 DP 19 SP analyzed. The operation time approximately 31 min longer group (129.7 ± 36.0 min) than (98.4 41.3 min, P < 0.01). We also evaluated pre- postoperative image measurements, no significant lordosis, segmental disc angle, slipping length, height groups. CSA dural sac group, from 55.3 78.4 mm 2 ; 54.7 77.2 ) central diameter 5.9 7.9 mm; 5.6 7.7 mm) significantly larger after both However, statistically differences groups ( = 0.684). Conclusions could reduce average about min. found that effect SP-PPS considered be useful technique enlargement angle obtained DP-PPS fixation.