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Re: Неудачный остеосинтез голени гвоздем
послал Tom DeCoster 18 Декабрь 2003, 09:48
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The tibia shaft fracture (proximal 1/3 of the shaft) is apex medial 20 degrees, slightly short and a few degrees apex anterior after nailing. The nail extends quite proximal to the entry site. I wasn't able to see the distal end of the nail on my screen and am not certain if there was distal locking.
There are many techniques to try to avoid this problem and some to correct it once it happens. Correction seems harder than prevention and has always been harder than I anticipated when going back in. If you back the nail up, reduce the fracture and re-insert the nail then the deformity has a strong tendency to recur. Extracting the nail and plating is not altogether unreasonable,
although I would prefer to reposition the nail. My best salvage technique (2 cases) has been back up the nail reduce the fracture make a small medial (posterior edge of tibia) approach at the distal end of the tibia fracture place a two hole plate with unicortical screws carefully re-insert the nail statically lock in the first case I left the two hole plate and in the second I removed it at the end of the case. Both turned out ok.
Poller or blocking screws (or as you suggest wire?) CAN also work but once the channel in the proximal fragment is created it can be difficult to maintain the reduction while the nail goes back in.
Patience and good positioning and radiographic visualization are helpful.
Very salvageable.
Tom DeCoster
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