Anatomy of the tibialis anterior tendon

NewsBot · Feb 2, 2019

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A cadaveric and sonographic study of the morphology of the tibialis anterior tendon – a proposal for a new classification
Łukasz Olewnik, Michał Podgórski, Michał Polguj and Mirosław Topol
Journal of Foot and Ankle Research201912:9

Background
The tibialis anterior tendon (TAT) presents little morphological variation. The tibialis anterior muscle originates at the lateral condyle of the tibia, the proximal one-third to two-thirds of the lateral surface of the tibia shaft, and the anterior surface of the interosseous membrane and inserts to the medial cuneiform bone and first metatarsal. The aim of our work is to classify types of TAT insertion by two complimentary methods - anatomical dissection and ultrasound examination.

Methods
In the first part, classical anatomical dissection was performed on 100 lower limbs (50 right, 50 left) fixed in 10% formalin solution. The morphology of the insertion of the tendon was evaluated and the muscle was subjected to the appropriate morphometric measurements. In the second part, the morphology of the TAT insertion was evaluated in 50 volunteers with ultrasound.

Results
The tibialis anterior muscle was present in all specimens. In the cadavers, five types of insertion were observed, the most common being Type V: a single band attaching to the medial cuneiform bone (32%). In the sonographic part, Type IV was not observed; however, an additional insertion type was recognised (Type VI), which was characterized by two identical bands attached only to the medial cuneiform bone. The most common type identified by ultrasound was Type II (35%).

Conclusion
The tibialis anterior tendon presents high morphological variability that can be observed both in cadavers and in vivo by ultrasound examination.
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NewsBot · Jul 29, 2020

Anatomical variations of the tibialis anterior tendon
Piotr Karauda et al
Clin Anat. 2020 Jul 26

Introduction: The tibialis anterior muscle originates from the medial part of the anterior compartment, from the upper two-thirds of the lateral surface of the tibia and the adjacent part of the interosseous membrane, and typically inserts to the medial cuneiform and first metatarsal bone. The goal of the study was to examine the insertion of the tibialis anterior tendon and create a classification in human fetuses.

Material and methods: Fifty spontaneously-aborted human fetuses 26 male, 24 female, 100 lower limbs, aged 18-38 weeks of gestation at death were examined.

Results: The classification comprised five types of tibialis anterior tendon insertion. The most common was type V 60%, which was characterized by a single tendon inserting onto the medial cuneiform bone. The second most frequent was type I 19%, which was characterized by a tendon which split into two equal-sized parts that insert to the medial cuneiform bone and the base of the first metatarsal. The third was type II 12%, which was characterized by a tendon splitting into two different-sized parts that inserted onto the medial cuneiform bone larger component and the base of the first metatarsal smaller component. The fourth type was type III 5%, which was also characterized by a tendon splitting into two different-sized parts that inserted onto the medial cuneiform bone smaller component and the base of the first metatarsal larger component. Finally, type VI 4%, the least frequent type, was characterized by a tendon splitting into three different-sized parts, inserting onto the medial cuneiform bone the smallest component and the base of the first metatarsal the middle and larger component.

Conclusion: The tibialis anterior muscle is characterized by high variability in the approach of its tendon to the foot, at least in fetuses. This is classified in the present study for the first time.
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NewsBot · Jul 18, 2023

A three-dimensional analysis of the tibialis anterior tendon: emphasizing tendon insertion patterns for effective repair and understanding hallux valgus development
Hyung-Jin Lee & You-Jin Choi
Surgical and Radiologic Anatomy (2023)

Purpose
The present study aimed to evaluate the insertion site of the tibialis anterior tendon three-dimensionally.

Methods
Seventy lower limbs were dissected. The tibialis anterior tendon was dissected to verify the insertion site to the medial cuneiform and the base of the first metatarsal bone. The three-dimensional (3D) territory of the tibialis anterior tendon insertion on the medial cuneiform and the first metatarsal bones was measured on a reconstructed 3D model.

Results
The insertion pattern of the tibialis anterior tendon was classified into three types, the most common being Type I: a single tibialis anterior tendon dividing into two equal-sized bands to the medial cuneiform and base of the first metatarsal bone (57.1%, 40/70 of cases). The 3D territory of the tibialis anterior tendon was larger in the plantar aspect than in the medial side of both the medial cuneiform and the base of the first metatarsal bone. The width of the tendon inserted into the medial cuneiform was wider than that inserted into the first metatarsal bone.

Conclusion
The tibialis anterior tendon was more commonly attached to the plantar part than the medial part in both the medial cuneiform and the base of the first metatarsal bone. This anatomical information will help surgeons perform anatomical reconstruction of the tibialis anterior tendon, reduce further tendon damage in the first metatarsocuneiform joint area and also provide valuable knowledge to improve understanding of hallux valgus pathogenesis.
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NewsBot · Aug 4, 2023

Anatomical study of type classification and surface area of attachment sites for tibialis anterior tendon
Tomoki Hirai, Mutsuaki Edama, Ryoya Togashi, Haruki Osanami, Rina Saito, Koyo Kato, Mayuu Shagawa, Chie Sekine, Hirotake Yokota, Ryo Hirabayashi, Tomonobu Ishigaki, Hiroshi Akuzawa, Yuki Yamada, Taku Toriumi & Ikuo Kageyama
BMC Musculoskeletal Disorders volume 24, Article number: 631 (2023)

Background
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.

Methods
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.

Results
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 (1 MB), showing a significantly larger area for MCB than for 1 MB.

Conclusions
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.
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NewsBot · Aug 12, 2023

Anatomical study of type classification and surface area of attachment sites for tibialis anterior tendon
Tomoki Hirai et al
BMC Musculoskelet Disord. 2023 Aug 3;24(1):631

Background: 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.

Methods: 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.

Results: 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 (1 MB), showing a significantly larger area for MCB than for 1 MB.

Conclusions: 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.
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Anatomy of the tibialis anterior tendon

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Anatomy of the tibialis anterior tendon

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

NewsBot The Admin that posts the news.

Arterial Anatomy of the Tibialis Posterior Tendon

Navicular anatomy

Variation of the flexor digitorum brevis anatomy

Posterior Tibial Artery anatomy

Sural Nerve anatomy

Anatomy of the Plantar Intermetatarsal Tunnel

Anatomy of the subtalar joint ligaments

Share This Page

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