• Jun Wang, Xiao-Jun Chu, Ling-Feng Li, Ze-Zheng Yang, Tie-Qi Zhang, and Jun He.
• Department of Orthopedics, Shanghai Fifth People's Hospital Affiliated to Fudan University, No. 801, Heqing Road, Minhang District, Shanghai 200240, China.
• Prev Med. 2023 Sep 1; 174: 107648107648.

AbstractTo evaluate the effectiveness of a self-designed pressure-guided fracture positioning device, a prospective study was conducted in patients with posterior ankle fractures undergoing surgery using the device. Twenty-seven cases of ankle joint fracture with posterior malleolus fracture were treated by surgery. In the process of fixing posterior malleolus fracture, a self-designed fracture positioning compression guide device was used to fix posterior malleolus bone by anterior and posterior approaches. Postoperative CT images were used to assess the fixation position as well as length of the screw and the compression of the fracture. All patients had healed ankle fractures, and the anterior-posterior screws were fixed in the central area of the posterior malleolus. Posterior malleolus fragment displacement was <2 mm. The screw effectively secured the cortex beyond the length of the posterior malleolus cortex by no more than two threads. The good rate of ankle joint function was 85.16%. Compared to traditional surgical techniques, minimally invasive fixation using the self-designed positioning compression guide device has several advantages, including smaller trauma, faster postoperative recovery, and improved patient satisfaction. The device also provides the surgeon with greater control and precision during the surgical procedure, which can contribute to better surgical outcomes.Copyright © 2023 Elsevier Inc. All rights reserved.

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