Objective To investigate the risk factors of early recurrence after lumbar discectomy under intervertebral foramen endoscopy and further analysis the predictive efficacy.Methods 132 patients with lumbar disc herniation who underwent lumbar discectomy under intervertebral foramen endoscopy in our hospital and the superior hospital from June 2019 to February 2023 were retrospectively included.They were divided into recurrence group(12 cases)and non-recurrence group(120 cases)based on whether there was recurrence after 6 months of follow-up;the clinical characteristics of the recurrent group and non-recurrent group were compared,and incorporate statistically significant indicators into the logistic re-gression model to evaluate independent risk factors for early recurrence after lumbar discectomy under intervertebral foramen endoscopy;Evaluating the independent risk factors mentioned above by depicting the subject's job characteristic(ROC)curve for predicting clinical efficacy in predicting early recurrence after lumbar discectomy under foraminal endoscopy.Results This study included 12 out of 132 patients who experienced recur-rence within 6 months of postoperative follow-up,with a recurrence rate of 9.09%;The median postoperative recurrence time was 69.0(7.0,158.0)days.There was a statistically significant difference in the Pfirmann grading of intervertebral disc degeneration,the proportion of significantly more lateral protrusions,the severity of Modic lesions,the disc height index,the width of the protrusion base,the level of postoperative fibrous ring rupture,and the area of intervertebral foramen between 2 groups(P<0.05).The logistic regression model showed that an increase in the width of the protruding base,an aggravation of Modic lesion,and a reduction in intervertebral foramen area were all independent risk factors for early recurrence after lumbar discectomy under intervertebral foramen endoscopy(P<0.05).ROC curve analysis results show that the width of the protruding base,the degree of Modic lesion,and the area of the intervertebral foramen can all be used for predicting the risk of early recurrence after lumbar discectomy under in-tervertebral foramen endoscopy,and the combined prediction efficiency of the above indicators is significantly better than that of a single indicator or combination of each two indicators(P<0.05).Conclusion Early recurrence after lumbar discectomy under intervertebral foramen endoscopy is closely related to an increase in the width of the protruding base,an aggravation of Modic lesions,and a reduction in intervertebral foramen area;At the same time,the combination of the above indicators shows better clinical efficacy in predicting of the early recurrence risk after lumbar discectomy under intervertebral foramen endoscopy.
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