Footnotes

• Contributors J-LZ: performed the surgery, idea for the article, literature review, writing the article. WP-G, X-CZ: revision of the article. Y-LF, RH: clinicians responsible for the patient. Q-YW: editing of images.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests None declared.

• Patient consent for publication Parental/guardian consent obtained.

• Provenance and peer review Not commissioned; externally peer reviewed.