抄録
The purpose of this study was to identify the risk factors for non-infected non-union after femoral nailing. A case-control study of 18 fractures was conducted. There were 5 fractures in the non-union group and 13 in the control group.
All the fractures were type A2 or A3 by the AO classification. Mechanism of injury, whether the fracture was located in the most narrow portion, smoking, contact of the cortex, length or diameter of the intramedullary nail, timing for loading, any episode of dynamization, and the time until final fixation were examined retrospectively.
The results confirmed the importance of making a conscious inner fixed bony contact at the initial operation. As a result, the transverse screw has been removed in the early postoperative period, and a case that may have led to non-union of the fracture stability is compromised, and that the definition of dynamization adaptation should be discussed.
conclusion: Be carried out within a fixed to obtain a bony contact for the first time of surgery is important.
For example, inserting a transverse locking of a sufficient number, to increase the stability of the fracture.
We believe that there is room for reconsideration for the adaptation of dynamization.
