A new technique for separating radioulnar synostosis with vascularized flap: a case report - Yi-Chih Chen, MD; Ken N. Kuo, MD; Takehiko Takagi, MD, PhD; Shinichiro Takayama, MD, PhD; Po-Jen Shih, PhD; Chia-Hsieh Chang, MD, PhD (JSES International, 2023)