Abstract：Objective To explore the clinical effect of Kirschner wire internal fixation and mini plate internal fixation in the treatment of Bennett fracture, and provide an important reference for clinical studies.Methods Clinical data of Bennett fracture patients admitted to Department of Hand and Foot Surgery, Pulandian District Central Hospital of Dalian City from January 2019 to January 2020 were retrospectively analyzed.A total of 69 patients who received Kirschner wire internal fixation were randomly selected, and 73 patients whose propensity score matched the micro plate internal fixation.The related indicators of surgery such as operation time, intraoperative blood loss, fracture healing time and hospital stay, the excellent and good rate of surgery and postoperative recovery were compared between the two groups.Results The length of hospital stay and fracture healing time of patients in the microplate internal fixation group were shorter than those in the Kirschner wire internal fixation group, the upper limb function assessment form (DASH) scores at 4 and 8 months after discharge were lower than those in the Kirschner wire internal fixation group, the excellent and good rates of surgery was higher than that in the Kirschner wire internal fixation group, and the differences were statistically significant (P＜0.05).There were no significant differences in operative time and intraoperative blood loss between the two groups (P＞0.05).Conclusion Mini plate internal fixation in the treatment of Bennett fractures has less hospitalization time than Kirschner wire internal fixation, faster fracture healing, and obvious short-term effects.The long-term effects need further clinical exploration.
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