Presence of adipose tissue along the posteromedial tibial border

Journal of Experimental Orthopaedics

Akuzawa Hiroshi¹  Kumai Tsukasa¹  Okunuki Takumi²  Maemichi Toshihiro²  Yabiku Hiroki³  Tanaka Hirofumi⁴  Matsumoto Masatomo⁵  Hoshiba Takuma⁶ 

[1] Faculty of Sport Sciences, Waseda University, Saitama, Japan;Graduate School of Sport Sciences, Waseda University, Saitama, Japan;Graduate School of Sport Sciences, Waseda University, Saitama, Japan;Department of Orthopedic Surgery, University of Ryukyus, Okinawa, Japan;Graduate School of Sport Sciences, Waseda University, Saitama, Japan;Hyakutake Orthopedic & Sports Clinic, Saga, Japan;Graduate School of Sport Sciences, Waseda University, Saitama, Japan;Kuwana City Medical Center, Kuwana, Mie, Japan;Waseda Institute for Sport Sciences, Saitama, Japan;

关键词: Adipose tissue;    Gross anatomy;    MRI;    Ultrasound;    Fat quantification;    Imaging;   

DOI  :  10.1186/s40634-021-00408-0

来源: Springer

【 摘 要 】

PurposeThe flexor digitorum longus and posterior tibial tendon as well as the perforating veins are located along the distal posteromedial tibial border. Adipose tissue may surround these structures and possibly play a role in reducing mechanical stress. This study aimed to examine the adipose tissue along the posteromedial tibial border via magnetic resonance imaging (MRI), ultrasound, and gross anatomical examination.MethodsThe lower legs of 11 healthy individuals were examined every 3 cm from the medial malleolus using MRI and ultrasound. The fat fraction was calculated using fat fraction images. In addition, the gross anatomy of the flexor digitorum longus origin and adipose tissue along the posteromedial tibial border was examined in seven fresh cadavers. The fat fraction was compared at different heights along the posteromedial tibial border and in Kager’s fat pads; we also compared the height of the flexor digitorum longus origin and adipose tissue.ResultsIn vivo, the adipose tissue was identified along the entire posteromedial tibial border using MRI and ultrasound. There was no significant difference in fat fraction between Kager’s fat pads and the adipose tissue along the posteromedial tibial border, except at the 6 cm mark. All seven cadavers presented adipose tissue along the posteromedial tibial border, significantly more distal than the flexor digitorum longus origin.ConclusionThe adipose tissue was identified along the posteromedial tibial border via MRI, ultrasound, and gross anatomical examination; thus, this tissue may play a role in reducing friction and compressive stress in tendons.

【 授权许可】

CC BY