The Hip Flashcards
Where is the only location that the femoral head contacts?
The lunate surface
What is the normal torsion angle for the hip joint?
~15-20°
If a patient enters the clinic and presents with a hip joint orientation angle of >20°, this would indicate that the patient has hip ______
Anteversion
If a patient has hip anteversion what ranges of motion are limited?
Limited external rotation due to excess internal rotation
If a patient has femoral retroversion which limits internal rotation due to excessive external rotation, what compensation might you see and what is a potential injury they are predisposed to?
- Toeing out as a compensation
- Possible predisposition to labral tears
Which motion causes all the ligaments to tighten in the hip?
Full (hyper) hip extension
What is the purpose of the iliofemoral ligament?
- Limits
- Hip Extension
- External rotation
- Prevents pelvic tilting posteriorly
- The strongest and stiffest ligament in the hip
What is the role of the pubofemoral ligament?
- Limits
- Hip extension
- Abduction
- External rotation (to a lesser degree compared to iliofemoral)
What does the ischiofemoral ligament do?
- Limits internal rotation
- Limits hip extension (slightly)
- limits most when combined with 10-20° hip abduction
What is the position of the hip in a closed-packed position?
- Full extension
- Slight hip internal rotation
- Slight hip abduction
What are the primary hip flexors?
- Iliopsoas
- Rectus femoris
- Sartorius
- Tensor fascia latae
- Adductor longus
- Pectineus
Where would you see increased leverage for the iliopsoas muscle?
When the hip is extended
At what angle does the glute max have the greatest mechanical advantage?
0° of flexion
What are the primary hip abductors?
- Gluteus medius
- Gluteus minimus
- Tensor fascia latae
What are the primary hip adductors?
- Adductor magnus
- Adductor longus
- Adductor Brevis
- Pectineus
- Gracilis
