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Re: Несостятельность фиксации
послал Tom DeCoster 05 Август 2003, 13:26
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This is a BIG problem, that fortunately is somewhat less common now than 10 years ago. The fibula and a large piece of distal lateral tibia are now displaced laterally about 1 cm. It is difficult to assess how well reduced the tibia articular surface was and is. You might consider:
1. What is the status of the soft tissues? Range from grossly infected with tissue loss to healing OK with surgical scars. Many somewhere in between but the soft tissue slough is a common and BIG problem. You haven't mentioned much about this.
2. What is the status of the patient? Diabetic?, compliant?, smoking? etc.
3. What is the status of the fixation? Is it solid or grossly loose? This appears somewhere in between with perhaps syndesmosis instability but the other fixation (fibula, tibia articular surface, tibia meta-diaphysis ?OK)
4. What is the status of the reduction. Again, syndesmosis very wide but other (fibular length, tibia articular surface, tibia alignment, talus beneath plafond) seems OK.
5. What is your risk tolerance? Individualized to patient and surgeon. How much risk of BKA are you willing to take to try to get somewhat improved ankle function.
I believe this may be salvage mode and a good ultimate result will be a preserved foot and ankle fusion. So be careful about doing too much that might result in infection, multiple operations and BKA. If soft tissue OK, patient
OK, reduction and fixation failure limited to sydesmosis etc then you could try repeat syndesmosis reduction and new fixation. Perhaps 2 screws with bicortical tibia and fibula purchase supplemented by enforced NWB (bent knee LLC vs other).
TD
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