Intradural cervical disc herniation is relatively rare, and the two additional cases updated the number of this condition to 29. It remains difficult to definitively diagnose the disease before surgery, but some indirect signs may indicate the cases. Corpectomy under a microscope as the first option in treatment of this disease is recommended once it is highly diagnosed. The pathogenesis of intradural cervical disc herniation remains to be further investigated. We presume that biochemical factors may play an important role in the pathogenesis.

Background: In recent years, pelvic restoration surgery is widely used in the diagnosis and treatment of stress urinary incontinence (SUI) as people pay more attention to postpartum pelvic floor dysfunction (PFD). The therapeutic effect of pelvic restoration combined with anti-SUI surgery remains undetermined.The evaluation indicators of the therapeutic effects include the incidence of postoperative obstruction, the incidence of postoperative defecation difficulties, and the quality of life score. Methods: PubMed, Cochrane Library, and EMBASE were searched from the establishment of the database to April 2021 for randomized control trials (RCTs) of pelvic restoration and anti-SUI surgery, and the RevMan5.3 software provided by the Cochrane Collaboration was used for meta-analysis.Results: A total of 6 documents (a total of 1,944 patients) were included, including 1,021 patients in the experimental group and 923 patients in the control group. The incidence of obstruction after pelvic restoration combined with anti-SUI surgery was statistically significant (OR =1.35, 95% CI, 0.95-1.92, P=0.10); there was a statistically significant difference in the incidence of postoperative dyspareunia (OR =1.58, 95% CI, 0.91-2.74, P=0.10).Discussion: A total of 8 documents included in this meta-analysis confirmed that pelvic restoration combined with anti-SUI surgery for PFD can improve the prognosis and quality of life of patients.

Objective To evaluate clinical effects, and their correlations with preoperative computed tomography imaging parameters, in cases of lumbar spinal stenosis treated by endoscopic transforaminal decompression. Methods This retrospective study included orthopaedic patients who had undergone percutaneous endoscopic lumbar discectomy (PELD) for lumbar spinal stenosis. Clinical symptoms were evaluated by visual analogue scale (VAS), Oswestry Disability Index (ODI) and claudication distance. Overall clinical efficacy was evaluated by Macnab score. Results A total of 87 patients were included. Postoperative wound healing was good without complications. Macnab scores following PELD were ‘excellent’ in 41 cases (47.12%), ‘good’ in 30 cases (34.48%), ‘generally good’ in seven cases (8.04%), and ‘poor’ in nine cases (10.34%). The overall rate of optimal surgery was 81.60%. Postoperative pain (VAS) and ODI scores, and claudication distance, were significantly improved versus preoperative values. The soft tissue invasion ratio of the vertebral canal and invasion ratio of the nerve root canal were correlated with clinical efficacy. Conclusion Positive correlations were observed between clinical efficacy of endoscopic transforaminal decompression and preoperative vertebral canal soft tissue invasion ratio and nerve root canal invasion ratio in patients with lumbar spinal stenosis.