Rib cartilage framework supporting combined with local flap grafting for correction of cryptotia / 中华耳鼻咽喉头颈外科杂志

Objective: To investigate the curative effect of rib cartilage framework supporting combined with local flap grafting for correction of cryptotia. Methods: Fourteen cases (nineteen ears) were corrected by rib cartilage framework supporting combined with local flap grafting method from January 2017 to March 2019. Part of the 7th rib cartilage was carved into a scalloped cartilage piece, which was implanted on the retroauricular cartilage to release and expand the deformed cartilage. A "M" incision was designed on the retroauricular skin to make the local flap grafting. Results: All corrected auricles were followed up for four months to three year and abtained satisfactory and stable appearance. In one case, the edge of the helix was broken two weeks after the operation, and well healed after repairing. Conclusions: The rib cartilage framework supporting combined with local flap grafting method can fully correct the deformity of cryptotia, and the long-term effect is satisfied. It can be an important complement to the classic methods.

[Selection and application of ear reconstruction surgery for Chinese microtia].

OBJECTIVE: Based on the different physiological characteristics of the mastoid skin and soft tissue of Chinese congenital microtia malformation, the Nagata two-stage method was respectively applied for ear reconstruction, and the clinic experience were investigated in this study. METHOD: According to the mastoid skin and soft tissue difference in the thickness and tightness, 280 patients diagnosed with congenital microtia were divided into four types: thin and tight, thin and loose, thick and tight, thick and loose type. 90 cases of thin and loose type accepted the Nagata method of ear reconstruction surgery. RESULTS: With average 7.8 months follow up, 84.4% (76/90) cases using Nagata two-stage method were satisfied with the outcome of the reconstructed ear including three dimensional position and subunit appearance. There were no postoperative complication related to chest wall deformity or affected normal physical function. CONCLUSIONS: The Nagata two-stage method is appropriate management choice for Chinese congenital microtia. Based on the different physiological characteristics of the mastoid skin and soft tissue, the selection of different operational should be beneficial to the ear reconstruction of Chinese congenital microtia malformation.

Emergency treatment of large amputated ear defect with auricular cartilage replantation / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the emergency treatment for large amputated ear defect.</p><p><b>METHODS</b>From Feb. 2010 to Oct. 2013, 5 cases with large unilateral amputated ear defects were treated. The amputated auricular cartilage was replanted subcutaneously in mastoid area at the first stage. Cranioauricular sulcus was reconstructed and skin grafting was performed at the second stage.</p><p><b>RESULTS</b>All cases were followed up for 3-6 months with satisfactory result. The reconstructed helix, scapha and cavity of auricular concha had similar color and elasticity as the ear at healthy side. Scar at donor sites, such as inguinal region and armpit, was inconspicuous.</p><p><b>CONCLUSIONS</b>The method of auricular cartilage replantation is an effective way for emergency treatment of large amputated auricular defect with less morbidity at donor site.</p>

Management after expanded flap ulceration during auricular reconstruction / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the feasibility of Brent I methods for total auricular reconstruction when expanded flap ulceration happened.</p><p><b>METHODS</b>The expanded flaps in the retroauricular region ulcerated during total auricular reconstruction in 8 patients with microtia. Then the expanders were removed and autologous rib cartilage frameworks were implanted. Brent I techniques for the total auricular reconstruction were employed.</p><p><b>RESULTS</b>All the wounds in 8 patients with microtia healed primarily. The expanded flaps survived completely. The reconstructed ears had good shape and appearance with little hair. The size, shape and position of reconstructed ears were coordinated with the face.</p><p><b>CONCLUSIONS</b>Brent I technique is an alternative method for total auricular reconstruction when the expanded flap ulceration occurs during total ear reconstruction.</p>

The experimental study on the effect of CDMP-1 on proliferation of residual ear chondrocytes of microtia cultured in vitro / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the alternation of biological characteristics of residual ear chondrocytes when proliferating in vitro, and study the effects of CDMP-1 on proliferation and differentiation of residual ear chondrocytes.</p><p><b>METHODS</b>Residual ear chondrocytes were cultured in vitro. Then we observed the effect of CDMP-1 on differentiation by immunohistochemistry of collagen type II and dyeing with toluidine blue, investigated proliferation effects of CDMP-1 by method of MIT, and analysis cell cycle changes by flow cytometry.</p><p><b>RESULTS</b>The quantity of GAG gradually decreased along with the increase of the doubling time of chondrocytes in vitro. The quantity of chondrocytes with positive expression of collagen type II were significantly more in the experimental group used with CDMP-1 than the contrast. And the most efficient concentration of CDMP-1 was 100 ng/ml.</p><p><b>CONCLUSIONS</b>CDMP-1 had a good effect on proliferating and could maintain morphology of the residual ear chondrocytes of microtia cultured in vitro.</p>

Constricted ear therapy with free auricular composite grafts / 中华整形外科杂志

<p><b>OBJECTIVE</b>A simple and effective therapy for single side constricted ear.</p><p><b>METHODS</b>Transplanting normal side free composite auricular grafts to constricted ear (15 patients and 15 sides), then lengthening the helix, exposing the scapha, correcting deformity.</p><p><b>RESULTS</b>The 15 patients composite grafts all survived. The helix has been lengthened, the scapha exposed, the normal ear reduced, the constricted ear augmented and two sides ear have become symmetry.</p><p><b>CONCLUSION</b>This method is simple and results are satisfied.</p>