Effect Analysis of Microchannel Bone Grafting Combined with External Fixation in the Treatment of Type C3 Fractures of Distal Radius

JIANG Liangliang; KANG Qiangjun; LIU Bin

doi:10.3969/j.issn.1002-3429.2024.14.008

Abstract：Objective To analyze the clinical effect of microchannel bone grafting combined with external fixation in the treatment of C3 fractures of distal radius.Methods In total,59 patients with type C3 fracture of distal radius treated from June 2021 to June 2023 were selected.Thirty patients treated with microchannel bone grafting combined with external fixation were selected as the observation group,and 29 patients treated with closed reduction and external fixation were selected as the control group.The height of radical styloid process,palmar inclination angle and ulnar deviation angle of the distal radius were observed and compared at 1 month,3 months and 6 months after surgery.Postoperative recovery of wrist function,length of hospital stay,clinical healing rate of fracture at 6 months after surgery and postoperative follow-up were compared between the two groups.Results There was no significant difference in the height of radical styloid process,palmar inclination angle and ulnar deviation angle of the distal radius between the two groups at 1 month,3 months and 6 months after surgery(P＞0.05).The excellent and good rate of Cooney wrist function score was 70.0%in the observation group,which was higher than that(37.9%)in the control group(P＜0.05).There were no significant differences in the length of hospital stay and the clinical healing rate of fractures at 6 months after surgery between the two groups(P＞0.05).There were no incision and nail tract infection in both groups,and the fractures healed well.In the observation group,X-ray reexamination at 1 month after opera-tion showed that the alignment of the broken end of the distal radius was good.Conclusion The application of microchannel bone grafting combined with external fixator in the treatment of type C3 fracture of distal radius has good reduction effect,smooth recovery of radial articular surface and good recovery of wrist joint function.