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Object: Lumbosacral spondylolisthesis (LSS) is a common disorder that often requires a stabilization and fusion procedure. The aim of this study was to determine the early neuroimaging-detected results of instrumentation-assisted (in situ) fusion with no attempt at surgical reduction of the deformity in patients with low-grade LSS. The neuroimaging results were evaluated to determine the extent of reduction and its correlation with different parameters., Methods: Thirty patients with low-grade LSS underwent short-segment transpedicular screw fixation; surgical reduction was not attempted. All patients underwent plain anteroposterior and lateral lumbar radiography, flexion-extension lateral lumbar radiography, and computerized tomography and magnetic resonance imaging of the lumbar spine before and after surgery. Postoperative measurements were determined on the late (9 to 12-month) postoperative radiographs. The findings were recorded and grouped. Correlation analysis was performed among the radiological findings, body mass index, age, and sex. Paired-sample t-tests were performed for each paired group to determine statistically significant differences. There was no significant difference in extent of deformity reduction in patients with different lordotic angles, sagittal-plane rotation angles, and intervertebral disc heights. The extent of reduction was statistically significant at the L4-5 level (p < 0.05), in patients younger than 50 years of age (p < 0.05), and in those in whom the facet joint angle was increased (p < 0.05)., Conclusions: The authors found that in cases of low-grade LSS, short-segment posterior stabilization (in situ fusion and fixation) does not require surgical reduction and in fact is associated with a measurable reduction when used as the sole treatment.

The history of spinal surgery represents an important aspect of spine-related sciences. The development of the treatment strategies of spine-related disorders has predominantly been recorded in the Western literature. In this paper, a Turkish physician, Serefeddin Sabuncuoğlu (1385-1468), and his treatise, Cerrahiyetül Haniye (Imperial Surgery), are presented. Three sections of this book regarding spinal disorders (spinal dislocations, sciatica, and back pain) are reviewed. The techniques described were used by Sabuncuoğlu in the 1400s. In conclusion, the language and illustrations of this treatise are unique. Compared with current approaches, there are no major differences in the principles of treating spinal traumas despite the passage of almost 500 years.