Abstract
Background: Surgical approaches used in the treatment of patients with severe lumbar spondylolis thesis(Grade II and Grade III)are usually associated with a great deal of controversies. The objective of the study
was to assess the surgical outcomes of severe Lumbar spondylolis thesis treated with either pedicle screw
fixation,reduction and fusion or instrumented Fusion in-situ.
Methods: We retrospectively studied 32 patients (20 females and 12males),who had severe lumbar spondylolis thesis. All patients were divided in two groups (group A reduction and fusion and group B fusion in-situ).The
mean follow-up period was 6 months. Radiological and clinical outcomes were measured by slip percentage, slip angle correction rate, Oswestry Disability index(ODI), visual analogue scale (VAS). Data was
analyzed by SPSS version 22.0
Results: The analysis of the preoperative visits and final follow-up of all patients indicated that vertebral
reduction and fusion could slightly enhance the surgical outcome in comparison to instrumented fusion in situ.
Preoperative and Postoperative data was collected in all patients and found VAS from7.76to 2.08 in
group-A and VAS from 8.5 preoperative to 2.4 postoperative in group-B and ODI from69.42% to 20.06 % in
group-Aand 70.9% to 22% in group-B and mean slipcorrection rate was59.8 % . There wasno single caseof
loss of reduction.
Conclusion: The reduction, fusion and spinal decompression enhances surgical outcome and it can be
concluded that such procedure is slightly superior over fusion in situ. Excellent and good levels of satisfaction
were observed in all group-A patients,although surgical time was slightly more than fusion in-situ group.
Aqeel Ahmed Memon, Imtiaz Hashmi, Sohail Rafi, Idreesshah, Mustufa Perwaiz. (2018) Surgical Outcome Of Lumbar Degenerative Spondylolisthesis With Reduction Versus Fusion In Situ., The Pakistan Journal of Medicine and Dentistry, Volume-7, Issue-1.
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