Clinical effect of digital orthopedics 3D reconstruction technology assisted hollow compression screw internal fixation in treatment of Garden Ⅰ-Ⅱfemoral neck fracture
LU Dong-yan ZENG Mian-dong YANG Bo HU Han-sheng LI Yuan-hui YIN De-long QIU Qin-ye
Department of Orthopedics, the Third Affiliated Hospital of Guangzhou Medical University, Guangdong Province,Guangzhou 510150, China
Abstract：Objective To investigate the clinical effect of digital orthopedics 3D reconstruction technology assisted hollow compression screw internal fixation in treatment of GardenⅠ-Ⅱfemoral neck fractures; Methods A retrospective analysis of 44 patients with GardenⅠ-Ⅱfemoral neck fractures admitted to our hospital from June 2011 to June 2019 was made. They were divided into control group and observation group according to different surgical schemes. The 22 cases in the control group were treated with internal fixation with hollow compression screws for femoral neck fracture after conventional X-ray and CT reading; 22 cases in the observation group were treated before according to Mimics software, a fracture model was established, fracture fragments were segmented, surgical reduction was simulated, and 3-matic reconstruction screws were used. The optimal screw placement angle and screw length in Mimics were followed by internal compression fixation of hollow compression screws for femoral neck fractures. The operation time, total number of fluoroscopy times, total intraoperative blood loss, complete fracture healing time, postoperative weight-bearing time, and Harris hip function scores at half a year after surgery were compared between the two groups. Results The operation time of the observation group was shorter than that in the control group, and the total number of fluoroscopy times and total intraoperative blood loss were less than those in the control group, the differences were statistically significant (P＜0.05). There were no significant differences in complete fracture healing time, postoperative weightbearing time, and Harris hip function scores at half a year after surgery between the tow groups (P＞0.05). Conclusion Applying digital orthopedic 3D reconstruction technology to GardenⅠ-Ⅱfemoral neck fracture surgery, it can simulate the position of the hollow screw before operation, determine the screw type and screw length in advance, reduce the total number of fluoroscopy times, shorten the operation time, and reduce the total intraoperative blood loss and reduce the incidence of screw position misalignment.
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