Ischiofemoral ligament explained

Ischiofemoral ligament
Latin:	ligamentum ischiofemorale
From:	ischium
To:	femur

The ischiofemoral ligament (ischiocapsular ligament or ischiocapsular band) consists of a triangular band of strong fibers on the posterior side of the hip joint.^[1] It is one of the four ligaments that reinforce the hip joint. It attaches to the posterior surface of the acetabular rim and acetabular labrum, and extends around the circumference of the joint to insert on the anterior aspect of the femur.^[2] The ischiofemoral ligament limits the internal rotation and adduction of the hip when it is in a flexed position.^[3]

Some deeper fibres of the ligament are continuous with the fibres of the zona orbicularis of the capsule.^[4]

This ligament is less well-defined than the other two capsular ligaments of the hip joint.

Function

Studies of human cadavers found that this ligament limits internal rotation of the hip, regardless of whether the hip is flexed, extended, or in neutral position.^[5]

Notes and References

1. Web site: 7. Articulations of the Lower Extremity. a. Coxal Articulation or Hip-joint . Collection at Bartleby.com . 4 August 2023 . 20 October 2022.
2. Ng . KCG . Jeffers . JRT . Beaulé . PE . Hip Joint Capsular Anatomy, Mechanics, and Surgical Management. . The Journal of Bone and Joint Surgery. American Volume . 4 December 2019 . 101 . 23 . 2141–2151 . 10.2106/JBJS.19.00346 . 31800428. 7406151 . 10044/1/71938 . free .
3. Glenister . Roland . Sharma . Sandeep . Anatomy, Bony Pelvis and Lower Limb, Hip . StatPearls . StatPearls Publishing . 4 August 2023 . 2023. 30252275 .
4. Book: Palastanga . Nigel . Anatomy and Human Movement: Structure and Function . Soames . Roger . Churchill Livingstone/Elsevier . 2012 . 978-0-7020-3553-1 . 6th . Physiotherapy Essentials . Edinburgh . 290.
5. Web site: What is the Ischiofemoral Ligament? (With pictures).