To compare the clinical effects of Zhang's traction device and minimally invasive fixation combine with conventional open reduction and fixation for the treatment of distal femoral fractures.

A retrospective case-control study was conducted to analyze the clinical data of 32 patients with distal femoral fractures admitted to Anhui Provincial Hospital of Anhui Medical University from September 2016 to December 2017. They were divided into two groups according to different treatment methods. In the traditional open reduction and fixation group (traditional group), 15 cases were treated with Zhang's traction device and percutaneous fixation group (minimally invasive group). The femoral lateral plate fixation was used to compare the intraoperative blood loss, operation time, reduction time, number of fluoroscopy, knee joint HSS score and complication rate.

There was no significant difference in the general data between the two groups. The intraoperative blood loss was (170±7) ml, the operation time was (76±7) min, the reset time was (14.4±2.7) min, and the number of fluoroscopy was (7.9±1.6) times, the postoperative complication rate was 6%, which was superior to the traditional group. The difference was statistically significant (all P<0.05). There was no significant difference in knee HSS between the two groups 1 week after surgery.

Reduction with Zhang's traction device and percutaneous plate fixation for the treatment of distal femoral fractures has shorter reduction time, less intraoperative bleeding, shorter reset time, less fluoroscopy, and lower postoperative complications than conventional open reduction and internal fixation, this method can achieve good clinical results.