Abstract
Objective To investigate the effect of cement-reinforced fenestrated pedicle screw on degenerative lumbar surgery. Methods A total of 62 patients with degenerative lumbar surgery in the Second Affiliated Hospital of Zhengzhou University from September 2016 to June 2018 were randomly divided into study group(fenestrated screw fixation)and control group(conventional pedicle screw fixation), with 31 cases in each group. The operation time and total of intraoperative and postoperative bleeding volume, visual analogue scale (VAS) score, Oswestry disability index (ODI) score, complication rate and follow-up were evaluated. Results The operation time of the study group [(122.19±7.84) min] was shorter than that of the control group[(134.26±8.98) min]. There was no significant difference in the total amount of bleeding between the two groups(P>0.05). The VAS and ODI scores of the two groups were significantly improved compared with the preoperative scores (P<0.05). The incidences of bone cement leakage and complications in the study group were lower than those in the control group (P<0.05). Conclusions The technique of fenestrated cement-reinforced screws can improve the symptoms, shorten the operation time and reduce the complications, which is worthy of clinical application. Key words: Degenerative lumbar spine surgery; Fenestrated pedicle screw; Cement fixation; Cement leakage
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