Objective:To investigate the clinical efficacy of 3D printing -assisted percutaneous transforaminal endoscopic discectomy (PTED) in the treatment of lumbar disc herniation (LDH). Methods:A randomized controlled trial was conducted involving 60 patients with LDH who received treatment at The Second Affiliated Hospital of Bengbu Medical University from January 2020 to June 2023. The patients were randomly assigned to two groups using the random number table method, with 30 patients in each group. The control group received conventional PTED, while the observation group underwent 3D printing -assisted PTED. Surgical indicators, including operation time, number of fluoroscopy sessions, and number of needle punctures, as well as clinical efficacy assessed at 3 months postoperatively, were compared between the two groups. Results:The observation group had a significantly lower number of punctures [(2.17 ± 0.68) times] compared with the control group [(5.01 ± 2.15) times]. The operation time in the observation group [(64.31 ± 8.33) minutes] was significantly shorter than that in the control group [(71.89 ± 8.72) minutes]. The observation group had fewer fluoroscopy sessions [(12.27 ± 2.61) times] compared with the control group [(19.20 ± 2.67) times]. All differences were statistically significant ( t = 11.90, 3.63, 10.16, all P < 0.05). At 3 months postoperatively, the rates of excellent and good clinical outcomes according to the MacNab criteria were 96.67% (29/30) in the observation group and 93.33% (28/30) in the control group, with no statistically significant difference between the two groups (χ2 = 0.00, P = 1.000). Conclusion:Preoperative planning utilizing 3D printing technology can effectively assist with the puncture during PTED. It can enhance the efficiency and safety of the procedure, reduce radiation exposure, and exhibit significant application value.

Objective:To investigate the clinical efficacy of 3D printing -assisted percutaneous transforaminal endoscopic discectomy (PTED) in the treatment of lumbar disc herniation (LDH). Methods:A randomized controlled trial was conducted involving 60 patients with LDH who received treatment at The Second Affiliated Hospital of Bengbu Medical University from January 2020 to June 2023. The patients were randomly assigned to two groups using the random number table method, with 30 patients in each group. The control group received conventional PTED, while the observation group underwent 3D printing -assisted PTED. Surgical indicators, including operation time, number of fluoroscopy sessions, and number of needle punctures, as well as clinical efficacy assessed at 3 months postoperatively, were compared between the two groups. Results:The observation group had a significantly lower number of punctures [(2.17 ± 0.68) times] compared with the control group [(5.01 ± 2.15) times]. The operation time in the observation group [(64.31 ± 8.33) minutes] was significantly shorter than that in the control group [(71.89 ± 8.72) minutes]. The observation group had fewer fluoroscopy sessions [(12.27 ± 2.61) times] compared with the control group [(19.20 ± 2.67) times]. All differences were statistically significant ( t = 11.90, 3.63, 10.16, all P < 0.05). At 3 months postoperatively, the rates of excellent and good clinical outcomes according to the MacNab criteria were 96.67% (29/30) in the observation group and 93.33% (28/30) in the control group, with no statistically significant difference between the two groups (χ2 = 0.00, P = 1.000). Conclusion:Preoperative planning utilizing 3D printing technology can effectively assist with the puncture during PTED. It can enhance the efficiency and safety of the procedure, reduce radiation exposure, and exhibit significant application value.

[Objective]To explore the complications of tibial fracture treated with interlocking intramedullary nail.[Method]The full data of 785 cases of tibial fiacture treated with interlocking intramedullary nail were studied retrospectively.[Result]Mean follow-up period was 27 months (8~40months).There were some complications as follows: infection rate was 2.7% (21 cases),fracture nonunion 1.5% (12 cases),fracture delayed union 6.8% (53 cases),fracture malunion 0.9% (7 cases),knee pain 6.8% (53 cases),nail broken 1.4% (ll cases),locking screw broken or drop out 2.2% (17 cases).[Conclusion]Proper manipulations,strict indications,and postoperative treatment are vital to prevent the complications.

Objective To discuss the individual method and its feasibility and security of balloon kyphoplasty for the treatment of osteoporotic vertebral fractures with vertebral body wall incompetence. Methods Thirty-nine vertebral bodies were performed for kyphoplasty in 35 osteoporotic patients with vertebral compression fractures with incompetence of vertebral body wall. During operation, the cement was injected twice to avoid anterior leaking in the patients with anterior wall incompetence, while in the patients with posterior or lateral wall incompetence, the cement was injected with continuously X-ray monitoring by C-arm to prevent lateral or posterior leaking. The symptoms improvement, vertebral height restoration and complications were observed. Results All patients tolerated the procedure well with immediate relief of back pain after kyphoplasty. No symptomatic complications were found in all patients. The vertebral height had a recovery rate of 68.46%, and the mean Cobb angle was improved 8.6?. There was significant difference in Cobb angles between preoperation and postoperation (P