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Flashcards in Hip joint Deck (26):

What forms the trochanteric anastomosis?

Ascending branches of lateral and medial circumflex femoral arteries
Descending branch of superior gluteal artery
Infeior gluteal artery (ocassionally)


What is coxa valga?

An increase in the neck-shft angle of the femur to more than 139 degrees


What is the normal neck-shaft femoral angle in children?

135-145 degrees


What is the normal neck-shaft femoral angle in adults?

125 degrees


State the attachments of the joint capsule of the hip joint.

Anteriorly: intertrochanteric line, bases of greater and lesser trochanters
Posteriorly: 0.5 in above intertronchanteric crest
Superomedially: outer aspect of acetabular margin
Inferiorly: transverse acetabular ligament


Which ligaments are extracapsular?



Which ligamens are intracapsular?

Ligamentum teres femoris


What forms the cruciate anastomosis?

Tranverse branches of medial and lateral femoral circumflex arteries
Descending branch of gluteal artery
Ascending branch of first perforating artery


What is the strongest ligament in the body?

Iliofemoral ligament


What do the extracapsular ligaments do?

Prevent hyperextension of hip joint.


What forms the retinacular anastomosis?

Branches of medial circumflex with some contribution from lateral circumflex femoral artery.


State two difference between the retinacular and cruciate/trochanteric anastomosis?

Retinacular anastomosis has no contribution from gluteal arteries
Retinacular anastomosis located closer to femoral head


What is the clinical relevance of the cruciate anastomosis?

If there is blockage between femoral artery and internal iliac artery, blood can still reach popliteal artery by going from internal iliac artery --> inferior gluteal artery --> first perforating branch --> lateral circumflex femoral artery descending branch --> superior lateral genicular artery --> popliteal artery


What are the anterior relations of the hip joint?

From deep to superficial, medial to lateral;
1. Pectineus, Psoas, Rectus femoris
2. Femoral vein, femoral artery, femoral nerve, Iliacus


State the lateral relations of the hip joint.

From deep to superficial;
1. Gluteus minimus
2. Gluteus medius


True or false: The hip is the largest joint in the body.



What is another name for the iliofemoral ligament?

Y-shaped ligament of Bigelow


What is the origin of the iliofemoral ligament?

Anterior inferior iliac spine


Hilton's law states that...

The nerves passing across a joint supply the muscles that act on it, the skin over the joint, and the joint itself


What is referred pain?

Because the hip and knee joint are supplied by the same nerves, pain originating from the hip can be felt in the knee or vice versa and it easy to misdiagnose.


What causes the tredelendburg gait?

Damage to gluteus medius and/or minimus so that when walking, the unsupported side sags as the pelvis leans towards the healthy side, since the damaged muscles on the other side don't pull on the pelvis to stabilize it.


What is the nerve supply to the hip joint?

1. Femoral nerve (via nerve to rectus femoris)
2. Anterior division of obturator nerve
3. Twig from sciatic nerve
4. Branch from nerve to quadratus femoris


What are the immediate posterior relations of the hip joint?

From deep to superficial;
1. Tendon of obturator externus
2. Sciatic nerve, Quadratus femoris
3. Gluteus maximus


State the superior relations of the hip joint.

1. Gluteus minimus and medius
2. Head of rectus femoris
3. Gluteus maximus


What is the difference between a femoral and inguinal hernia?

A femoral hernia lies below and lateral to the pubic tubercle.
An inguinal hernia lies above and medial to the pubic tubercle.


Which nerve segments innervate the hip joint?

L2 - L5