Effect of reinforcement of the vertebral body with cemented nail paths on interbody fusion and settlement in patients with degenerative scoliosis
Objective To investigate the effect of cemented nail path reinforcement of the vertebral body on postoperative interbody fusion settling and fusion in patients with degenerative lumbar scoliosis combined with osteoporosis.Methods Twenty-four patients with degenerative lumbar scoliosis admitted from January 2020 to June 2023 were retrospectively analyzed and divided into Group A(anterolateral approach lumbar fusion combined with posterior percutaneous pedicle screw internal fixation)and Group B(anterolateral approach lumbar fusion combined with posterior percutaneous pedicle screw internal fixation and addition of cemented reinforcement)according to the surgical methods used.The two groups were observed to determine the intraoperative end-plate injury depending on the postoperative fusion device.The patients in both groups were observed for intraoperative endplate injury,postoperative fusion settling and fusion,and screw loosening.The visual analog score(VAS)of pain and the Oswestry dysfunction index(ODI)were evaluated before and after the operation.Results Postoperative VAS scores and ODI indices decreased significantly in both groups,and the difference was statistically significant compared to the preoperative period(P＜0.05).The incidence of intraoperative endplate injury,the fusion rate and settlement rate of the fusion device,and the incidence of screw loosening decreased in group B compared to group A,but the difference was not statistically significant(P＞0.05).Conclusion The reinforcement provided by a bone-cemented nail channel not only enhanced the holding power and anti-extraction ability of pedicle screws,but also strengthened the vertebral body,which may have a positive effect on reducing settling and fusion of the fusion device and deserves wide clinical use.
Cemented nail channel reinforcementOsteoporosisDegenerative scoliosisFusion device settlementFusion rate
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