I. Hematoma
Hematoma mostly occurred 72 hours after the dilator was implanted in the first operation, and a few cases occurred 10 ~ 14 days after the first operation or after the flap transfer in the second operation.
The main reason is that the bleeding did not stop completely and the drainage was not in place. The oozing blood accumulates around the dilator to form a hematoma, and the whole body is prone to bleeding.
Second, infection.
Most of the infections occurred after the expander was implanted in the first stage of operation, and a few cases occurred after the flap was transferred in the second stage of operation, resulting in secondary infection due to flap necrosis.
The main reasons are:
1, preoperative operation area preparation is not thorough, aseptic operation is not strict.
2. Poor healing of skin incision.
3. When the dilator is injected with normal saline, the aseptic operation is not strict, which causes infection around the injection pot and further spreads around the dilator.
Third, the dilator will not expand.
The main reason why the dilator does not expand is the poor quality of the dilator and improper removal by the operator.
Four, dilator exposed
After the dilator was implanted in the first stage of operation, the incision healed badly and was exposed from the incision. The dilator is exposed due to surface skin necrosis during expansion.
The main reason is the improper choice of incision position; Poor wound healing; Excessive water injection.
Five, skin flap necrosis
Skin flap necrosis is more common after second-stage operation.
The main reasons are:
1, vascular pedicle is damaged or compressed.
2. The aspect ratio of the flap is too large.
3. The distal end of the flap carries too much unexpanded tissue.
4. When cutting the flap, the operation is wrong, the blood vessels are damaged or the thickness of the flap is uneven.