ZHANG Wei,ZHENG Junju,CHEN Mangmang.. Clinical analysis of hollow pull screw plus mental cable in the treatment of patellar fracture[J]. JOURNAL OF WEZHOU MEDICAL UNIVERSITY, 2018, 48(6): 437-440，445.
Abstract：Objective: To study the clinical effects of hollow tension screw plus metal cable on large patellar fracture and explore biomechanical features. Methods: From January 2012 to January 2016, a total of 53 patients admitted to Wenzhou Central Hospital for closed patellar fracture were divided into the observation group and the control group. In the observation group, 26 cases were performed with open reduction hollow tension screw and metal wire internal fixation. In the control group, 27 cases were treated by open reduction and reduction of AO Kirschner wire tension band internal fixation. The two groups of patients were compared in terms of operation time, bone healing time, knee joint function and complications as well as biomechanical fixation firmness. Results: There was no statistical difference between the two groups in operation time and bone healing time (P>0.05). In comparison of knee joint scoring, the optimal rate was 100% in the observation group and 96.3% in the control group, with no statistical difference (P>0.05). The incidence rate of complications was 0% in the observation group and 25.9% in the control group, showing significant difference (P<0.05). In the aspect of biomechanics, patellar forces in the observation group was greater than the control group in the entity experiment of patella fracture end fracture under the shift distance of 1 mm, showing statistical difference between the two groups (P<0.05). Conclusion: Both hollow pulling screw plus metal wire internal fixation and AO steel wire tension band internal fixation have good healing effect in the clinical treatment of patella large fractures, however, the former has the advantages of better overall curative effect, fewer complications and stronger biomechanics fixation
