The origin structure of each finger in the flexor digitorum superficialis muscle.
Anatomy
Baseball
Rehabilitation
Ulnar collateral ligament
Valgus
Journal
Surgical and radiologic anatomy : SRA
ISSN: 1279-8517
Titre abrégé: Surg Radiol Anat
Pays: Germany
ID NLM: 8608029
Informations de publication
Date de publication:
Jan 2021
Jan 2021
Historique:
received:
30
03
2020
accepted:
16
06
2020
pubmed:
22
6
2020
medline:
20
7
2021
entrez:
22
6
2020
Statut:
ppublish
Résumé
The flexor digitorum superficialis muscle (FDS) is considered the most important of the forearm flexors for maintaining elbow valgus stability. However, the relationships between the origin structure of each finger of the FDS and the anterior oblique ligament (AOL) of the ulnar collateral ligament and the common tendon (CT) in the proximal part, and morphological features are unclear. The purpose of this study was to clarify the relationships between the origin structure of each finger of the FDS and the AOL and the CT, as well as to clarify the morphological features of the muscle belly of each finger of the FDS. This study examined 20 elbows. The origin of each finger was examined. Muscle mass, muscle fiber bundle length, and the pennation angle of each finger were also measured. In all cases, the third and fourth digits originated from the radius, the anterior common tendon (ACT), and the posterior common tendon (PCT). The second and fifth digits (18 elbows) or an independent fifth digit (2 elbows) originated from the ACT, the PCT, the AOL, and other soft tissues of the elbow. Muscle mass and muscle fiber bundle length in the muscle belly of the third and fourth digits were significantly heavier and longer, respectively, than in the muscle belly of the second and fifth digits. Because the second and fifth digits or an independent fifth digit originated from the AOL, their contraction may cause tension in the AOL.
Identifiants
pubmed: 32564110
doi: 10.1007/s00276-020-02522-7
pii: 10.1007/s00276-020-02522-7
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3-10Subventions
Organisme : Japan Society for the Promotion of Science
ID : JP19K11358
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