Blood supply to head and neck of femur – Orthopaedics MCQ

Arteries around the hip joint

Blood supply to head and neck of femur is mainly from?

A. Superficial epigastric artery
B. Medial circumflex femoral artery
C. Lateral circumflex femoral artery
D. Artery of ligamentum teres

Correct answer : B. Medial circumflex femoral artery

Blood supply to head and neck of femur

•  The blood supply to the head and neck of femur comes from:
  • Extracapsular arterial ring located at the base of neck of femur
  • Artery of ligamentum teres
  • Epiphyseal arteries
  • Metaphyseal arteries
• The extracapsular arterial ring is formed by:
  • Posteriorly by branches of medial circumflex femoral artery (major part of blood supply)
  • Anteriorly by branches of lateral circumflex femoral artery
  • Smaller branches from superior and inferior gluteal artery
• Both medial and lateral circumflex femoral arteries are branches of profunda femoris artery.
• Artery of ligamentum teres
  • It is a branch of obturator artery.
  • It contributes a small but variable amount of blood supply.