Introduction: Intramedullary interlocking nail fixation has become a popular treatment for long bone fractures in lower limb, including the femur and tibia [1]. It carries various advantages over traditional plating [2,3], including avoidance of soft tissue damage, and restoring of physiologic biomechanics [4,5,6]. Furthermore, it has been proven to be the treatment of choice in conditions such as comminuted, segmental, osteoporotic, or even open fractures fractures [7,8,9]. A proper reduction of fracture is one of the key factors for prompt bone healing, and improper reduction may leads to malunion, or even nonunion, of the fracture site, which may subsequently leads to functional disability for the patient. In order to achieve a good reduction by closed method, the patient is usually placed on the fracture table, and ligamentotaxis is performed by the orthopedic surgeon under the guidance of fluoroscopic images [10]. The axial alignment may be restored via longitudinal traction of the injured limb, but the rotational alignment is often difficult to maintain [11]. With the traditional manually adjustable fracture table, the surgeon generally performs reduction preoperatively; however, once the surgical field is prepared and draped, it is difficult to manipulate the fracture table intraoperatively.
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