Ischiofemoral Ligament Flashcards

Examine the posterior hip ligament, its spiral fiber arrangement, bony attachments, capsular relationships, and stabilizing functions.

Card 1 of 24Question

Which joint is reinforced by the ischiofemoral ligament?

The hip joint.

In This Section

1. Which joint is reinforced by the ischiofemoral ligament?

The hip joint.

2. What type of ligament is the ischiofemoral ligament?

An intrinsic capsular ligament formed by a thickening of the fibrous hip joint capsule.

3. On which aspect of the hip joint is the ischiofemoral ligament located?

The posterior aspect of the hip joint capsule.

4. Which pelvic bone provides the proximal attachment of the ischiofemoral ligament?

The ischium.

5. Where does the ischiofemoral ligament originate?

The ischial portion of the acetabular rim and adjacent acetabular labrum.

6. Where do the principal fibers of the ischiofemoral ligament attach distally?

The femoral neck near the medial surface of the greater trochanter.

7. In which direction do the ischiofemoral ligament fibers travel from their pelvic attachment?

Superolaterally and anteriorly around the femoral neck.

8. What distinctive arrangement characterizes the fibers of the ischiofemoral ligament?

They follow a spiral course around the posterior and superior femoral neck.

9. What is the primary mechanical function of the ischiofemoral ligament?

To reinforce the posterior hip capsule and restrict excessive hip movement.

10. Which rotational movement is particularly restricted by the ischiofemoral ligament?

Internal rotation of the hip.

11. How does the ischiofemoral ligament affect hip extension?

It becomes taut during extension and helps prevent excessive hip extension.

12. What happens to the ischiofemoral ligament during hip flexion?

Its fibers become relatively relaxed, permitting greater hip mobility.

13. How does the ischiofemoral ligament contribute to the stability of the femoral head?

It provides passive capsular restraint that helps maintain femoral head stability within the acetabulum.

14. What is the relationship between the ischiofemoral ligament and the hip joint capsule?

The ligament blends with and strengthens the posterior fibrous capsule.

15. Which circular capsular structure receives fibers from the ischiofemoral ligament?

The zona orbicularis.

16. What is the zona orbicularis of the hip joint?

A ring of circular capsular fibers surrounding the femoral neck.

17. Which three major capsular ligaments reinforce the hip joint?

The iliofemoral, pubofemoral, and ischiofemoral ligaments.

18. How does the position of the ischiofemoral ligament differ from that of the iliofemoral ligament?

The ischiofemoral ligament is posterior, whereas the iliofemoral ligament is anterior.

19. Which large muscle lies superficial to much of the posterior hip joint capsule?

The gluteus maximus.

20. Which short external rotator lies immediately posterior to the superior hip capsule near the ischiofemoral ligament?

The piriformis muscle.

21. What is the relationship between the ischiofemoral ligament and the synovial membrane?

The ligament is part of the fibrous capsule, which lies external to the synovial membrane.

22. How does the spiral arrangement of the ischiofemoral ligament influence hip stability?

Its fibers tighten during extension, increasing passive capsular restraint.

23. What may result from injury or excessive laxity of the ischiofemoral ligament?

Reduced posterior capsular restraint and increased rotational instability of the hip.

24. Which imaging modality is useful for evaluating the ischiofemoral ligament and surrounding hip capsule?

Magnetic resonance imaging (MRI).