Intermediate Ischiofemoral Ligament Quiz

Q1. How is the ischiofemoral ligament related to the posterior acetabular rim?

• It arises from the ischial portion of the posterior acetabular region
• It arises from the anterior inferior iliac spine
• It arises from the femoral head
• It arises from the pubic symphysis

Q2. Where do fibers of the ischiofemoral ligament blend distally?

• Fibular head
• Medial tibial condyle
• Calcaneal tuberosity
• Posterior femoral neck and greater trochanteric region

Q3. Why is the ischiofemoral ligament described as having a spiral course?

• It spirals through the obturator foramen
• It coils inside the femoral canal
• It wraps around the tibial shaft
• Its fibers wind around the posterior femoral neck

Q4. Which motion is restrained by tension in the ischiofemoral ligament, particularly when the hip is extended?

• Ankle inversion
• Knee flexion
• Internal rotation
• Toe extension

Q5. How does hip extension increase passive capsular stability?

• It winds and tightens the capsular ligaments
• It opens the acetabulum
• It converts ligaments into muscle
• It removes the capsule from the femur

Q6. Which capsular ligament is located primarily anteroinferiorly and arises from the pubic region?

• Ligament of the head of the femur
• Sacrotuberous ligament
• Pubofemoral ligament
• Ischiofemoral ligament

Q7. Why can the ischiofemoral ligament contribute to maintaining femoral head congruity?

• It provides passive restraint to excessive femoral head motion
• It deepens the acetabulum by forming articular cartilage
• It replaces the acetabular labrum
• It actively contracts around the femoral head

Q8. What is the relationship of the ischiofemoral ligament to the synovial membrane?

• It lies inside articular cartilage
• It is part of the fibrous capsule external to the synovial lining
• It is contained within the femoral marrow cavity
• It is a fold of synovial membrane only

Q9. How does hip flexion generally alter ischiofemoral ligament tension?

• It generally decreases tension
• It fixes the ligament to the acetabular labrum
• It always maximally tightens it
• It causes normal rupture

Q10. Why is the ischiofemoral ligament mechanically different from a muscle?

• It contains motor units that shorten voluntarily
• It develops passive tension rather than active contraction
• It is composed of articular cartilage
• It inserts through a muscle belly