Femoral Neck System vs. four cannulated screws in the treatment of Pauwels III femoral neck fracture.

OBJECTIVE: To compare the clinical efficacy of the Femoral Neck System (FNS) vs. four cannulated screws in Pauwels III femoral neck fractures. METHODS: This retrospective study included patients with newly occurred type Pauwels III femoral neck fracture treated at author' Hospital of between January 2017 and February 2021. The patients received FNS (n = 27) or four cannulated screws (control group, n = 31). The operation time, blood loss, fracture healing time, incidence of complications (such as short femoral neck, necrosis of femoral head, nonunion of fracture, and failure of internal fixation withdrawal), and hip Harris score at the last follow-up were analyzed. RESULTS: The operation time, blood loss, and fracture healing time were not significantly different between the two groups (all P > 0.05). In the FNS group, three and one patients were with femoral neck shortening and femoral head necrosis, respectively, while no fracture nonunion or failure of internal fixation withdrawal occurred. In the control group, seven, two, one, and two patients were with femoral neck shortening, femoral head necrosis, nonunion, and internal fixation failure, respectively. The cumulative complication incidence was 14.8% and 38.7% in the FNS and control groups (P = 0.042). The excellent and good rates of the hip Harris score at the last follow-up were 92.6% and 71.0% in the FNS and control groups, respectively (P = 0.036). CONCLUSION: The study suggested that the clinical efficacy of FNS was better than internal fixation using four cannulated screws in treating Pauwels III type femoral neck fracture.

[Clinical analysis of extended PFNA combined with MIPPO plate for reconstruction of lateral wall in treatment of AO-A3.3 intertrochanteric fracture].

OBJECTIVE: To compare the clinical efficacy of lengthened proximal femoral nail anti-rotation(PFNA) combined with minimally invasive percutaneous plate osteosynthesis(MIPPO) and common PFNA in the treatment of AO-A3.3 intertrochanteric fracture. METHODS: The clinical data of 58 patients with AO-A3.3 intertrochanteric fracture treated from January 2015 to April 2020 were retrospectively analyzed. Among them, 27 patients were treated with extended PFNA + MIPPO plate to reconstruct the lateral wall (group A), and 31 patients were treated with closed reduction and PFNA fixation (group B). The bleeding volume, operation time, femoral neck length and tip apex distance(TAD), fracture healing time and postoperative complications were observed and compared between two groups. Harris score was used to evaluate hip joint function 10 months after operation. RESULTS: All patients were followed up for 12 to 28 months. The incision healed well after operation. The bleeding volume and operation time of group A were significantly more than that of group B (P<0.05), and the fracture healing time of group A was significantly less than that of group B(P<0.05). There was no significant difference in the length of femoral neck between two groups at 2 days after operation(P>0.05). The length of femoral neck at 6 months after operation in each group was shorter than that at 2 days after operation(P<0.05), and the shortening of femoral neck at 6 months after operation in group B was significantly shorter than that in group A(P<0.05). There was no significant difference in TAD values between two groups at the same time point(P>0.05) at 2 days and 6 months after operation. There was no significant difference in TAD values between 2 days and 6 months after operation(P>0.05). The incidence of complications in group B was significantly higher than that in group A(P<0.05). The Harris scores of hip joint function in group A were higher than those in group B 10 months after operation (P<0.05). CONCLUSION: Compared with the treatment of AO-A3 femoral intertrochanteric fracture with closed reduction and PFNA fixation, the lengthened PFNA combined with MIPPO small plate for reconstruction and fixation of the lateral wall can promote the fracture healing, improve the patient's functional recovery, and significantly reduce the complications.

Clinical Analysis of Minimally Invasive Percutaneous Treatment of Severe Lumbar Disc Herniation with UBE Two-Channel Endoscopy and Foraminal Single-Channel Endoscopy Technique.

For surgical treatment, herniation of traditional open surgery is the traditional approach and the representative operation for lamina windowing excision of nucleus pulposus. In recent years, the unilateral dual channel spine endoscopic technology (UBE/BESS) has caused extensive concern of spine surgery performer. This research compared the results of minimally invasive percutaneous treatment of severe lumbar disc herniation with foraminal single-channel endoscopy and unilateral biportal endoscopy (UBE). A retrospective study was conducted on 50 patients with severe disc herniation treated with minimally invasive percutaneous treatment in MinDong Hospital affiliated to Fujian Medical University from September 2019 to September 2021. According to different surgical methods, they were divided into two groups: foraminal single-channel endoscopic group and UBE dual-channel endoscopic group. There were 22 cases in the UBE surgery group and 28 cases in the interforaminal endoscopic group. The comparison included operation time, postoperative hospital stays, preoperative and postoperative pain scale (VAS), and postoperative MRI to observe the residual condition of prolapsed nucleus pulposus and the occurrence of complications. There were no significant differences between the UBE group and the interforaminal endoscopic group in incision length, operation time, postoperative hospital stays, and improvement of VAS score before and after surgery. In terms of postoperative nucleus pulposus residual rate and postoperative recurrence rate, the two-channel UBE group was significantly better than the single-channel interforaminal endoscopic group. The incidence of postoperative anemia in the interforaminal endoscopic group was significantly lower than that in the UBE group. In the treatment of severe disc herniation, UBE two-channel endoscopy has the advantages of lower recurrence rate, lower nucleus pulposus residual rate, shorter learning curve, and better field of vision than foraminal single-channel endoscopy, which is worth promoting in primary hospitals.

[Minimally invasive retrograde insertion of elastic intramedullary nails for displaced clavicle fractures in children].

OBJECTIVE: To study the application and effect of retrograde titanium elastic nails fixation for the treatment of displaced clavicle fracture in children under closed reduction. METHODS: From January 2014 to November 2016, 26 children with displaced fractures of the clavicle were treated by closed reduction and retrograde inserted titanium elastic nails including 14 boys and 12 girls with an average age of 9.2 years old ranging from 7 to 14 years. Time from injury to operation was 2 to 7 days with an average of 2.8 days. Visual analogue score (VAS) was used to evaluate the main complaint pain in all patients before and 2 days after operation. The Neer score of shoulder function between affected side and healthy side at 2 months after operation were compared. RESULTS: All the 26 children were followed up for 6 to 12 months. All cases healed well without infection, broken nails or titanium elastic nails exit complications. All children achieved anatomical reduction, good bony union, and good recovery of shoulder joint activity. The average time of removing nail was 14 to 32(16.25±2.62)weeks. The pain VAS score was significantly relieved 2 days after operation (P<0.05). At 2 months after operation, the Neer score of shoulder joint was 98.46±1.07 in affected side and 98.58±1.10 in healthy side respectively, there was no significant difference between the two groups (P>0.05). CONCLUSIONS: Titanium elastic intramedullary nail fixation for the treatment of displaced clavicular fracture in children has the advantages of minimal invasion, no effect on skin beauty, rapid healing of fracture, good recovery of postoperative function, simple nailing and less complications.