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Re: Несращение бедра
послал Doug Turner 12 Апрель 2002, 15:54
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My goal would be to do the least invasive and lowest risk procedure possible to get the femur united. I think any surgical attempt to improve
the movement in the knee at the same time is a bit over ambitious.
If I could get the femur straight by "serial casts" or passive stretching over a period of a few weeks I think this would be preferable. If this were possible I would then precede to closed dynamic locked nailing and early
weight bearing. If there was no sign of union in a few months then precede to bone grafting.
If I could not get the femur as described above I would open the fracture and do the minimum dissection/release to get it straight, antegrade nail and bone graft.
Once the femur is straight (by either closed or open means) I think a long sharp solid reamer from above will probably go across the fracture (with a bit of gentle hammering). I would try to avoid retrograde reaming from the fracture site as this would require a lot of dissection and further devascularisation of the fracture ends.
Retrograde nailing through the knee I think increases the risk of knee stiffness. The loss of knee movement is just as likely to be due to scaring around the fracture site so any surgical release to improve the knee movement might need to extend up to the fracture site. I thing this would be too ambitious and risky.
The nail will need to be long and should come right down in to the intercondylar region of the femur. I don't think there will be much risk of
another fracture in this area.
The nail will probably hit the broken screw distally but it should easily push the screw aside as you hammer the nail down.
Doug Turner
Orthopaedic Surgeon
Gold Coast
Australia
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