Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Anatomical Study of Type Classification and Surface Area of Attachment Sites for Tibialis Anterior Tendon

Tomoki Hirai
,
Mutsuaki Edama
* ORCID logo ,
Ryoya Togashi
,
Haruki Osanami
,
Rina Saito
,
Koyo Kato
,
Mayuu Shagawa
,
Chie Sekine
ORCID logo ,
Hirotake Yokota
ORCID logo ,
Ryo Hirabayashi
ORCID logo ,
Tomonobu Ishigaki
,
Hiroshi Akuzawa
,
Yuki Yamada
,
Taku Toriumi
,
Ikuo Kageyama
Version 1 : Received: 7 January 2023 / Approved: 9 January 2023 / Online: 9 January 2023 (06:36:49 CET)

A peer-reviewed article of this Preprint also exists.

Hirai, T.; Edama, M.; Togashi, R.; Osanami, H.; Saito, R.; Kato, K.; Shagawa, M.; Sekine, C.; Yokota, H.; Hirabayashi, R.; et al. Anatomical Study of Type Classification and Surface Area of Attachment Sites for Tibialis Anterior Tendon. BMC Musculoskeletal Disorders 2023, 24, doi:10.1186/s12891-023-06753-8. Hirai, T.; Edama, M.; Togashi, R.; Osanami, H.; Saito, R.; Kato, K.; Shagawa, M.; Sekine, C.; Yokota, H.; Hirabayashi, R.; et al. Anatomical Study of Type Classification and Surface Area of Attachment Sites for Tibialis Anterior Tendon. BMC Musculoskeletal Disorders 2023, 24, doi:10.1186/s12891-023-06753-8.

Abstract

The purpose of this study was to clarify the attachment types of the tibialis anterior tendon (TAT) in Japanese fixed cadavers and to determine the attachment site area in three dimensions. We examined 100 feet from 50 Japanese cadavers. The TAT was classified according to differences in the number of fiber bundles as: Type I, with one fiber bundle; Type II, with two fiber bundles; and Type III, with three fiber bundles. The attachment site area of the TAT was measured using a three-dimensional scanner. Cases were Type II in 95% and Type III in 5%, with no cases of Type I identified. In Type II, mean attachment site areas were 85.2 ± 18.2 mm2 for the medial cuneiform bone (MCB) and 72.4 ± 19.0 mm2 for the first metatarsal bone (1MB), showing a significantly larger area for MCB than for 1MB. These findings suggest the possibility of ethnic differences in TAT attachment types and suggest that TAT attachments in Japanese individuals are highly likely to be Type II, with rare cases of Type III. Accurate measurement of attachment site areas is possible with appropriate three-dimensional measurements.

Keywords

tibialis anterior tendon; attachment site area; three-dimensional; medial cuneiform bone; first metatarsal bone

Subject

Medicine and Pharmacology, Orthopedics and Sports Medicine

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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