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English Abstract
Journal Article
[Auricular reconstruction for microtia with modified Nagata method].
OBJECTIVE: To investigate a method for total reconstruction of auricle.
METHODS: 90 patients (101 ears) with congenital microtia underwent two-stage operations for auricular reconstruction. The first stage involved fabrication and grafting of autologous costal cartilage, removing the remnant ear cartilage, embedding the framework into local flap of the mastoid region, transferring the remnant ear lobule flap to link to the inferior framework. The second stage was creating an auriculocephalic sulcus. The reconstruction was performed 4 - 12 months after the first surgery. Skin incision was made 5 mm lateral side of the posterior margin of the auricle. The ear framework carrying a thick ear fascia was separated from the side of the head, the frames of the costal cartilage banked at the first operation were harvested, shaved and transplanted to the posterior wall of the concha with sutures; adjust stand position and angle, so that made the ear shape, position, axis, close to the healthy ear, and auriculocephalic angle was slightly larger than the contralateral ear. Two random flap was designed with superior on the root of the helix and in the inferior-posterior direction of the inferior mastoid area, two flapes were elevated and transplanted to posterior auricular sulcus to cover the grafted cartilage. Skin graft was performed in the remaining raw surface.
RESULTS: A total of 90 patients were operated, all of 101 constructed ears achieved satisfied or near satisfied shapes. Five cases of partial skin flap necrosis were caused by pedicle impairment. Exposure of cartilage framework happened in two cases. The auriculocephalic sulcus of four cases diminished after the second stage operation. Three month to two-year follow-up of 67 patients showed that the reconstructed ears were satisfied with the results, including good shapes and steady auriculocephalic angles.
CONCLUSIONS: The method is a simple, safe and reliable method for total aural reconstruction.
METHODS: 90 patients (101 ears) with congenital microtia underwent two-stage operations for auricular reconstruction. The first stage involved fabrication and grafting of autologous costal cartilage, removing the remnant ear cartilage, embedding the framework into local flap of the mastoid region, transferring the remnant ear lobule flap to link to the inferior framework. The second stage was creating an auriculocephalic sulcus. The reconstruction was performed 4 - 12 months after the first surgery. Skin incision was made 5 mm lateral side of the posterior margin of the auricle. The ear framework carrying a thick ear fascia was separated from the side of the head, the frames of the costal cartilage banked at the first operation were harvested, shaved and transplanted to the posterior wall of the concha with sutures; adjust stand position and angle, so that made the ear shape, position, axis, close to the healthy ear, and auriculocephalic angle was slightly larger than the contralateral ear. Two random flap was designed with superior on the root of the helix and in the inferior-posterior direction of the inferior mastoid area, two flapes were elevated and transplanted to posterior auricular sulcus to cover the grafted cartilage. Skin graft was performed in the remaining raw surface.
RESULTS: A total of 90 patients were operated, all of 101 constructed ears achieved satisfied or near satisfied shapes. Five cases of partial skin flap necrosis were caused by pedicle impairment. Exposure of cartilage framework happened in two cases. The auriculocephalic sulcus of four cases diminished after the second stage operation. Three month to two-year follow-up of 67 patients showed that the reconstructed ears were satisfied with the results, including good shapes and steady auriculocephalic angles.
CONCLUSIONS: The method is a simple, safe and reliable method for total aural reconstruction.
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