Journal of Hebei Medical University ›› 2023, Vol. 44 ›› Issue (5): 541-546.doi: 10.3969/j.issn.1007-3205.2023.05.009

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Short-term effect of femoral neck system assisted by an orthopaedic robot "TINAVI" in femoral neck fracture in middle-aged and elderly people

  

  1. 1.The Third Department of Orthopedics, the First Central Hospital of Baoding City, Hebei Province, 
    Baoding 071000, China; 2.The Third Department of Orthopaedics, the Third Hospital of 
    Hebei Medical University, Shijiazhuang 050051, China

  • Online:2023-05-25 Published:2023-05-25

Abstract: Objective To investigate the short-term effect of orthopaedic robot "TINAVI" assisted femoral neck system (FNS) in the treatment of femoral neck fracture in middle-aged and elderly people. 
Methods A retrospective analysis was conducted on 72 patients with femoral neck fracture. Among them, 34 cases were treated with FNS assisted by an orthopaedic robot "TINAVI" under C-arm guidance for femoral neck fracture (observation group), and 38 cases were treated with FNS only under C-arm guidance (control group). The time to surgical reduction, time to fracture healing, fluoroscopy times, duration of operation, intraoperative blood loss, as well as femoral neck shortening degree immediately after operation and at 12 months after operation, Harris score of affected hip joint function at 3, 6 and 12 months after operation, and incidence of venous thrombosis of lower extremities were compared between two groups. 
Results The duration of operation, intraoperative fluoroscopy times after intraoperative reduction and intraoperative blood loss in the observation group were significantly shorter or less than those in the control group (P<0.05). There was no significant difference in time to fracture reduction and time to fracture healing between the two groups (P>0.05). All patients were followed up for a mean of 15.5 months. Immediately after surgery, there was no significant difference in the degree of femoral neck shortening between the two groups (P>0.05). No significant difference was found in the degree of femoral neck shortening in the observation group at 12 months after surgery, as compared with that immediately after surgery (P>0.05), and the degreein the control group wasinferior to that immediately after surgery (P<0.05). The degree of femoral neck shortening in the observation group was superior to that in the control group, showing significant difference (P<0.05). The Harris score of the affected hip in the observation group was significantly higher than that in the control group at 3 months after operation (P<0.05). At 12 months after surgery, the Harris score of hip function in the two groups was higher than that at 3 months after surgery, and the difference was statistically significant (P<0.05); However, there was no statistically significant difference in the Harris score of hip function between two groups (P>0.05). 
Conclusion Robot "TINAVI" -assisted FNS fixation for femoral neck fracture is simple to operate, which can not only play the advantages of a single minimally invasive incision, but also provide reliable fixation and precise positioning. So that the internal fixation can reach the most reasonable and optimal position, with good short-term efficacy. 


Key words: femoral neck fracture, robot, femoral neck system