Anthropometric measurements of moderate concha-type microtia after auricular cartilage unfolding_Chinese Journal of Reparative and Reconstructive Surgery

Authors：

GUO Fengfeng , LIN Lin , ZHOU Jiayu , YU Xiaobo , HE Leren , PAN Bo , YANG Qinghua ,  JIANG Haiyue

The 7th Plastic Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100144, P.R.China;

Corresponding author：

JIANG Haiyue, Email: jianghaiyue_psh@163.com

Keywords：

Concha-type microtia; auricular cartilage unfolding; anthropometric measurements

DOI：

10.7507/1002-1892.201909117

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Objective To explore the anthropometric changes of the auricle after auricular cartilage unfolding in moderate concha-type microtia patients, so as to provide the basis to help evaluate surgical timing and prognostic.Methods A total of 33 children with moderate concha-type microtia, who were treated with auricular cartilage unfolding between October 2016 and September 2018 and met the inclusive criteria, were included in the study. There were 24 boys and 9 girls with an average age of 1.4 years (range, 1-3 years). Sixteen cases were left ears and 17 cases were right ears. The follow-up time was 12-23 months (mean, 17.5 months). The affected auricular detailed structures were observed and quantitatively analyzed before operation and at immediate after operation. The width, length, and perimeter of auricle before operation and at immediate after operation and at last follow-up were noted with three dimensional-scanning technology. The normal auricle was noted as control.Results There were (7.5±1.0) and (11.3±0.8) structures of the affected auricle at pre- and post-operation, respectively, showing significant difference between pre- and post-operation (t=23.279, P=0.000). The length, width, and perimeter of the affected auricle constantly increased after operation, and there were significant differences between pre-operation and immediately after operation and between immediately after operation and last follow-up (P<0.05). The differences of length, width, and perimeter of the affected auricle between immediately after operation and last follow-up were (3.13±1.44), (2.44±0.92), and (8.50±3.76) mm, respectively. And the differences of length, width, and perimeter of the normal auricle between pre-operation and last follow-up were (3.16±1.54), (2.35±0.86), and (9.79±4.60) mm, respectively. There was no significant difference in the differences of length, width, and perimeter between the affected auricle and the normal auricle (P>0.05).Conclusion The auricular cartilage unfolding in treatment of the moderate concha-type microtia can receive more ear structures and increase auricle sizes, which make it possible for free composite tissue transplantation. In addition, the affected and the contralateral normal auricles have a very similar growth rate and it offers the theoretical foundation for the early treatment for moderate concha-type microtia.

Citation： GUO Fengfeng, LIN Lin, ZHOU Jiayu, YU Xiaobo, HE Leren, PAN Bo, YANG Qinghua, JIANG Haiyue. Anthropometric measurements of moderate concha-type microtia after auricular cartilage unfolding. Chinese Journal of Reparative and Reconstructive Surgery, 2020, 34(4): 501-504. doi: 10.7507/1002-1892.201909117 Copy

1.	Shibazaki-Yorozuya R, Nagata S. Preferential associated malformation in patients with anotia and microtia. J Craniofac Surg, 2019, 30(1): 66-70.
2.	Nagata S. A new method of total reconstruction of the auricle for microtia. Plast Reconstr Sur, 1993, 92(2): 187-201.
3.	Nagata S. Modification of the stages in total reconstruction of the auricle: Part Ⅱ. Grafting the three-dimensional costal cartilage framework for concha-type microtia. Plast Reconstr Surg, 1994, 93(2): 231-242.
4.	Brent B. The correction of microtia with autogenous cartilage grafts: Ⅱ. Atypical and complex deformities. Plast Reconstr Surg, 1980, 66(1): 13-21.
5.	Nataliya B, Martin MC. A true single-stage reconstruction of a projected auricle for concha-type microtia incorporating endoscopically harvested temporoparietal fascia. J Craniofac Surg, 2015, 26(6): 1930-1932.
6.	Park C, Park JY. Reconstruction of microtias with constricted ear features: A 22 year experience. Plast Reconstr Surg, 2018, 141(3): 713-724.
7.	Campo AA, Victor-Baldin A, Contreras-Mérida SM. Surgical-based classification for microtia. J Craniofac Surg, 2018, 29(6): 1651-1654.
8.	Park C. Modification of two-flap method and framework construction for reconstruction of atypical congenital auricular deformities. Plast Reconstr Surg, 1997, 99(7): 1846-1857.
9.	Madura T, Kubo T, Tanag M, et al. A simple method for auricular reconstruction in mild cases of conchal type microtia. J Craniofac Surg, 2005, 16(6): 1115-1120.
10.	Ohara K, Nakamura K, Ohta E. Chest wall deformities and thoracic scoliosis after costal cartilage graft harvesting. Plast Reconstr Surg, 1997, 99(4): 1030-1036.
11.	Laurie SW, Kaban LB, Mulliken JB, et al. Donor-site morbidity after harvesting rib and iliac bone. Plast Reconstr Surg, 1984, 73(6): 933-938.
12.	Thomson HG, Kim TY, Ein SH. Residual problems in chest donor sites after microtia reconstruction: a long-term study. Plast Reconstr Surg, 1995, 95(6): 961-968.
13.	Whitaker LA, Munro IR, Salyer KE, et al. Combined report of problems and complications in 793 craniofacial operations. Plast Reconstr Surg, 1979, 64(2): 198-203.
14.	Fu YY, Li CL, Zhang JL, et al. Autologous cartilage microtia reconstruction: Complications and risk factors. Int J Pediatr Otorhinolaryngol, 2019, 116: 1-6.
15.	林琳, 蒋海越, 潘博, 等. 耳软骨舒展联合矫正复合组织移植耳甲腔型小耳畸形. 中华耳科学杂志, 2013, 11(4): 515-517.
16.	蒋海越, 潘博, 林琳. 先天性小耳畸形的分型及治疗策略. 中华耳科学杂志, 2013, 11(4): 476-480.
17.	胡秀云, 刘伟, 汪绪武, 等. 国人耳郭发育调查及临床应用研究. 山东医大基础医学院学报, 1999, 13(2): 90-91.
18.	戚可名, 博洁, 熊斌, 等. 国人耳郭发育调查——兼论外耳再造的年龄选择. 中华整形烧伤外科杂志, 1990, 6(2): 136-137.
19.	Wellisz TZ, Cutting CB, McCarthy JG. The effects of unilamellar perichondrial dissection on the growth of rabbit ear cartilage. Plast Reconstr Surg, 1987, 79(6): 935-940.
20.	鲍卫汉, 王惠, 孙晓光. 部分切取耳软骨后是否有碍耳廓发育的实验研究. 中华烧伤杂志, 1992, 7(3): 136-137.

1. Shibazaki-Yorozuya R, Nagata S. Preferential associated malformation in patients with anotia and microtia. J Craniofac Surg, 2019, 30(1): 66-70.
2. Nagata S. A new method of total reconstruction of the auricle for microtia. Plast Reconstr Sur, 1993, 92(2): 187-201.
3. Nagata S. Modification of the stages in total reconstruction of the auricle: Part Ⅱ. Grafting the three-dimensional costal cartilage framework for concha-type microtia. Plast Reconstr Surg, 1994, 93(2): 231-242.
4. Brent B. The correction of microtia with autogenous cartilage grafts: Ⅱ. Atypical and complex deformities. Plast Reconstr Surg, 1980, 66(1): 13-21.
5. Nataliya B, Martin MC. A true single-stage reconstruction of a projected auricle for concha-type microtia incorporating endoscopically harvested temporoparietal fascia. J Craniofac Surg, 2015, 26(6): 1930-1932.
6. Park C, Park JY. Reconstruction of microtias with constricted ear features: A 22 year experience. Plast Reconstr Surg, 2018, 141(3): 713-724.
7. Campo AA, Victor-Baldin A, Contreras-Mérida SM. Surgical-based classification for microtia. J Craniofac Surg, 2018, 29(6): 1651-1654.
8. Park C. Modification of two-flap method and framework construction for reconstruction of atypical congenital auricular deformities. Plast Reconstr Surg, 1997, 99(7): 1846-1857.
9. Madura T, Kubo T, Tanag M, et al. A simple method for auricular reconstruction in mild cases of conchal type microtia. J Craniofac Surg, 2005, 16(6): 1115-1120.
10. Ohara K, Nakamura K, Ohta E. Chest wall deformities and thoracic scoliosis after costal cartilage graft harvesting. Plast Reconstr Surg, 1997, 99(4): 1030-1036.
11. Laurie SW, Kaban LB, Mulliken JB, et al. Donor-site morbidity after harvesting rib and iliac bone. Plast Reconstr Surg, 1984, 73(6): 933-938.
12. Thomson HG, Kim TY, Ein SH. Residual problems in chest donor sites after microtia reconstruction: a long-term study. Plast Reconstr Surg, 1995, 95(6): 961-968.
13. Whitaker LA, Munro IR, Salyer KE, et al. Combined report of problems and complications in 793 craniofacial operations. Plast Reconstr Surg, 1979, 64(2): 198-203.
14. Fu YY, Li CL, Zhang JL, et al. Autologous cartilage microtia reconstruction: Complications and risk factors. Int J Pediatr Otorhinolaryngol, 2019, 116: 1-6.
15. 林琳, 蒋海越, 潘博, 等. 耳软骨舒展联合矫正复合组织移植耳甲腔型小耳畸形. 中华耳科学杂志, 2013, 11(4): 515-517.
16. 蒋海越, 潘博, 林琳. 先天性小耳畸形的分型及治疗策略. 中华耳科学杂志, 2013, 11(4): 476-480.
17. 胡秀云, 刘伟, 汪绪武, 等. 国人耳郭发育调查及临床应用研究. 山东医大基础医学院学报, 1999, 13(2): 90-91.
18. 戚可名, 博洁, 熊斌, 等. 国人耳郭发育调查——兼论外耳再造的年龄选择. 中华整形烧伤外科杂志, 1990, 6(2): 136-137.
19. Wellisz TZ, Cutting CB, McCarthy JG. The effects of unilamellar perichondrial dissection on the growth of rabbit ear cartilage. Plast Reconstr Surg, 1987, 79(6): 935-940.
20. 鲍卫汉, 王惠, 孙晓光. 部分切取耳软骨后是否有碍耳廓发育的实验研究. 中华烧伤杂志, 1992, 7(3): 136-137.

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Anthropometric measurements of moderate concha-type microtia after auricular cartilage unfolding

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