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Hook leverage technique for reduction of intertrochanteric fracture

机译:钩钩技术减少股骨转子间骨折

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An intramedullary nail has become the implant of choice for today's orthopaedic surgeon for intertrochanteric fractures [1,2].Fixation failure or severe complications such as cut-out and cut-through result if accurate anatomical reduction is not achieved during surgery (Fig. 1) [3]. Although longitudinal traction and internal rotation of the fractured extremity will result in acceptable closed reduction of most intertrochanteric fractures, specific patterns of intertrochanteric fractures need percutaneous procedures, and some may even need open reduction [4-6]. Carr [4] defined a fracture pattern that needed a percutaneous procedure to achieve anatomical reduction. In this fracture pattern, the distal femoral shaft piece shortens and falls into external rotation, the proximal head and neck piece is displaced into a varus deformity and commonly translates posteriorly into the comminuted intertrochanteric region, and this fragment is engaged into the distal shaft piece. Accurate reduction of this particular fracture pattern is achieved with ease on the anteroposterior (AP) view during closed reduction, but there is a persistent disruption of the anterior cortex on the lateral view, which has to be manipulated into position (Fig. 2). Here we propose an ingenious way to overcome this problem and achieve anatomical reduction through a hook leverage technique as explained below.
机译:髓内钉已成为当今骨科医师治疗股骨转子间骨折的首选植入物[1,2]。如果在手术过程中未能正确地解剖复位,则固定失败或严重的并发症,例如切开和切开会导致结果(图1)。 )[3]。尽管纵向牵引力和四肢骨折的内旋将导致大多数股骨转子间骨折的闭合闭合可以接受,但是股骨转子间骨折的特定类型需要经皮手术,有些甚至可能需要开放复位[4-6]。 Carr [4]定义了需要经皮手术才能实现解剖复位的骨折模式。在这种骨折方式中,股骨远端轴节缩短并掉出外旋,近端头和颈部块移位为内翻畸形,通常向后平移进入粉碎性转子间区域,该碎片与远端轴节接合。在闭合复位过程中,可以轻松地在前后视图(AP)上准确减小该特定骨折类型,但是在侧视图上,前皮质存在持续性破坏,必须将其操纵到位(图2)。在这里,我们提出了一种巧妙的方法来克服此问题,并通过如下所述的挂钩杠杆技术实现解剖学上的简化。

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