Objective To evaluate our self-designed guide device for Kirschner-wire placement in the surgery for paediatric fractures of supracondylar humerus.Methods A retrospective study was con-ducted of the 117 children who had been treated for fractures of supracondylar humerus at Department of Ortho-pedics,The First People's Hospital of Huaian Affiliated to Nanjing Medical University from March 2019 to January 2023.There were 64 boys and 53 girls with an age of(5.8±1.5)years.By the Gartland classifica-tion,there were 67 fractures of type Ⅱ and 50 fractures of type Ⅲ.The time from injury to operation averaged(48.5±10.8)hours.The children were divided into 2 groups according to how their Kirschner-wires were placed.In the control group of 58 cases,external percutaneous Kirschner-wire placement was assisted using a syringe needle;in study group of 59 cases,external percutaneous Kirschner-wire placement was assisted using our self-designed guide device for Kirschner-wire placement.The operation time,rate of one-time placement of disposable K-wire,intraoperative fluoroscopy frequency,Baumann angle,carrying angle,fracture healing time,Flynn score of elbow joint function at the final follow-up,and postoperative complications were compared between the 2 groups.Results There was no significant difference in the preoperative general data between the 2 groups,indicating comparability(P＞0.05).The 117 pediatric patients were followed up for(15.3±3.2)months after operation.The operation time[(30.6±4.5)min]and intraoperative fluoroscopy fre-quency[(15.6±2.1)times]in the study group were significantly less than those in the control group[(40.6±7.3)min and(23.7±4.9)times],while the rate of one-time placement of disposable K-wire in the study group was significantly higher than that in the control group[84.2％(149/177)versus 32.2％(56/174)](P＜0.05).There were no significant differences in Baumann angle,carrying angle,fracture healing time,or Flynn score of elbow joint function at the final follow-up between the 2 groups(P＞0.05).The incidence of complications in the study group(6.8％,4/59)was significantly lower than that in the control group(20.7％,12/58)(P＜0.05).Conclusions Our self-designed guide device for Kirschner-wire place-ment is simple and convenient to use.In the surgery for paediatric fractures of supracondylar humerus,it can improve the rate of one-time placement of disposable K-wire,reduce intraoperative fluoroscopy,and decrease the incidence of complications.
维普
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