| 摘要 |
A medical device (2), which includes in cooperation: a hip screw (4), a gliding mechanism (6), an intramedullary nail (8), and a compression screw (10); and a method for insertion of the device are used to repair intertrochanteric fractures of the femur. The hip screw (4) includes along a longitudinal axis an externally threaded portion (12) as a bone screw for threadable insertion into the head of the femur and a hollow barrel portion (14), the barrel portion (14) having a pair of opposed slots (16, 18) provided therein along the longitudinal axis of the hip screw (4). The hollow barrel portion (14) optionally further includes internal threads (22) within the barrel portion (14) near the end of the hip screw (4) opposite the bone screw for threadably engaging a compression screw (10). The gliding mechanism (6) is retained within the barrel portion (14) of the hip screw (4) with a slidable fit and provides for lateral movement of the intramedullary nail (8) along the longitudinal axis of the hip screw (4). The hip screw (4) and the intramedullary nail (8) are retained by the gliding mechanism (6) at either a fixed angle of the intramedullary nail (8) relative to the hip screw (4) or a variable angle.
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