TY  - JOUR
A1  - Elsner, Clara
A1  - Kunz, Andreas Steven
A1  - Wagner, Nicole
A1  - Huflage, Henner
A1  - Hübner, Stefan
A1  - Luetkens, Karsten Sebastian
A1  - Bley, Thorsten Alexander
A1  - Schmitt, Rainer
A1  - Ergün, Süleyman
A1  - Grunz, Jan-Peter
T1  - MRI-based evaluation of the flexor digitorum superficialis anatomy: investigating the prevalence and morphometry of the “chiasma antebrachii”
T2  - Diagnostics
N2  - Recent dissection studies resulted in the introduction of the term “chiasma antebrachii”, which represents an intersection of the flexor digitorum superficialis (FDS) tendons for digits 2 and 3 in the distal third of the forearm. This retrospective investigation aimed to provide an MRI-based morphologic analysis of the chiasma antebrachii. In 89 patients (41 women, 39.3 ± 21.3 years), MRI examinations of the forearm (2010–2021) were reviewed by two radiologists, who evaluated all studies for the presence and length of the chiasma as well as its distance from the distal radioulnar and elbow joint. The chiasma antebrachii was identified in the distal third of the forearm in 88 patients (98.9%), while one intersection was located more proximally in the middle part. The chiasma had a median length of 28 mm (interquartile range: 24–35 mm). Its distances to the distal radioulnar and elbow joint were 16 mm (8–25 mm) and 215 mm (187–227 mm), respectively. T1-weighted post-contrast sequences were found to be superior to T2- or proton-density-weighted sequences in 71 cases (79.8%). To conclude, the chiasma antebrachii is part of the standard FDS anatomy. Knowledge of its morphology is important, e.g., in targeted injections of therapeutics or reconstructive surgery.
KW  - flexor digitorum superficialis
KW  - flexor tendon
KW  - chiasma antebrachii
KW  - magnetic resonance imaging
Y1  - 2023
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/36263
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-362631
SN  - 2075-4418
VL  - 13
IS  - 14
ER  -