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Tensor fasciae latae muscle - want to learn more about it?

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Tensor fasciae latae muscle

The tensor fasciae latae muscle belongs to the group of gluteal muscles. Even though the tensor fasciae latae isn't considered a thick muscle, it can easily be palpated since it lies above all hip muscles, particularly in athletes who engage and strengthen their hip muscles, such as hurdlers and weightlifters.

Anatomy

Origins & Insertions

Tensor fasciae latae muscle - ventral view

The muscle originates from the iliac crest and the anterior superior iliac spine on the iliac bone. Distally its fibers attach to the fascia lata - a deep fascia surrounding the entire thigh musculature. The tensor fasciae latae, the fibers of the gluteus maximus and the aponeurosis of the gluteus medius form a horizontal reinforcement known as the iliotibial tract. This band of connective tissue runs laterally over the knee joint and inserts at the lateral condyle of tibia and lateral patellar retinaculum.

Iliotibial tract - dorsal view

Innervation

The innervation is supplied by the superior gluteal nerve (L4-S1).

Superior gluteal nerve - dorsal view

Function

The main task of the tensor fasciae latae is to sustain tension of the iliotibial tract. As the femoral shaft meets the pelvis, an angled pressure from above imposes a high bending strain to the femur. Both the hip abductors and the tensor fasciae latae counteract the pressure on the opposite side and help stabilize the bone (tension banding effect). Furthermore, the activation of the muscle leads to an abduction, flexion and inward rotation of the hip joint.

Clinical Aspects

A bursa is located between the iliotibial tract and the lateral condyle of tibia protecting the band from the underlying femur. However, overstraining and increased activity of the tendon can result in an inflammation of the bursa (iliotibial band syndrome).

Endurance athletes, such as joggers and bicyclists, with leg deformities (e.g. genu varum, flat foot) are particularly prone to this condition. Clinically, patients present a short, overly tense iliotibial tract, swelling above the lateral condyle of tibia and pain which increases during movements of the lower leg.

Tensor fasciae latae muscle - want to learn more about it?

Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.

Sign up for your free Kenhub account today and join over 852,397 successful anatomy students.

“I would honestly say that Kenhub cut my study time in half.” – Read more. Kim Bengochea Kim Bengochea, Regis University, Denver

Show references

References:

  • D. Drenckhahn/J. Waschke: Taschenbuch Anatomie, 1st edition, Urban & Fischer Verlag/Elsevier (2008), p. 78-79
  • M. Schünke/E. Schulte/U. Schumacher: Prometheus – LernAtlas der Anatomie – Allgemeine Anatomie und Bewegungssystem, 2nd edition, Thieme Verlag (2007), p. 472
  • C. J. Wirth/L. Zichner/D. Kohn: Orthopädie und Orthopädische Chirurgie, Thieme Verlag (2005), p. 494-495
  • J. Weineck: Sportanatomie, Spitta Verlag (2003), 16th edition, p. 155

Author:

  • Achudhan Karunaharamoorthy

Illustrators:

  • Tensor fasciae latae muscle - ventral view - Liene Znotina
  • Superior gluteal nerve - dorsal view - Liene Znotina
© Unless stated otherwise, all content, including illustrations are exclusive property of Kenhub GmbH, and are protected by German and international copyright laws. All rights reserved.

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