Please confirm topic selection

Are you sure you want to trigger topic in your Anconeus AI algorithm?

Please confirm action

You are done for today with this topic.

Would you like to start learning session with this topic items scheduled for future?

Updated: Jan 1 2022

Vastus lateralis

Images
https://upload.orthobullets.com/topic/10058/images/atlasimage..jpg
https://upload.orthobullets.com/topic/10058/images/thigh nerves.jpg
https://upload.orthobullets.com/topic/10058/images/thigh arteries.jpg
https://upload.orthobullets.com/topic/10058/images/thigh cross section.jpg
https://upload.orthobullets.com/topic/10058/images/2_moved.jpg
https://upload.orthobullets.com/topic/10058/images/8_moved.jpg
https://upload.orthobullets.com/topic/10058/images/5_moved.jpg
https://upload.orthobullets.com/topic/10058/images/2a_moved.jpg
https://upload.orthobullets.com/topic/10058/images/8a_moved.jpg
https://upload.orthobullets.com/topic/10058/images/1.1_moved.jpg
https://upload.orthobullets.com/topic/10058/images/le mri cross section.jpg
https://upload.orthobullets.com/topic/10058/images/quad contusion mri_moved.jpg
https://upload.orthobullets.com/topic/10058/images/quad contusion_moved.jpg
  •  SUMMARY
      • Vastus lateralis
      • Origin
      • Superior portion of intertrochanteric line, anterior and inferior borders of greater trochanter, superior portion of lateral lip of linea aspera, and lateral portion of gluteal tuberosity of femur
      • Insertion
      • Lateral base and border of patella; also forms the lateral patellar retinaculum and lateral side of quadriceps femoris tendon
      • Action
      • Extends the knee
      • Innervation
      • Muscular branches of femoral nerve (L2, L3, L4)
      • Arterial Supply
      • Lateral circumflex femoral artery
  • Innervation
    • Vastus lateralis is supplied by the muscular branches of the femoral nerve
    • Primary nerves of the anterior thigh
      • obturator nerve
      • femoral nerve
        • origin
          • L2-4 of lumbar plexus
        • motor
          • extensors of the knee
            • rectus femoris
            • vastus lateralis
            • vastus medialis
            • vastus intermedius
        • sensory
          • none
        • course
          • descends in the abdomen through the psoas
          • runs behind inguinal ligament and into the thigh where it splits into an anterior and posterior division
          • passes through femoral triangle lateral to femoral vessels
          • terminal cutaneous branch is the saphenous nerve
  • Blood Supply
    • Vastus lateralis is primarily supplied by lateral circumflex artery, a branch of femoral artery
    • Femoral artery
      • branches in thigh
        • profunda femoris
        • medial femoral circumflex
        • lateral femoral circumflex
          • lateral to rectus femoris
          • branches
            • ascending branch - runs towards ASIS between sartorius and TFL
              • requires ligation during anterior approach to hip
            • transverse branch - joins branch of medial femoral circumflex
            • descending branch - runs between vastus intermedius and lateralis muscles
              • encountered in anterolateral approach to femur
  • Cross Sectional Anatomy
    • Vastus lateralis lies in the anterior compartment of the thigh
      • anterior compartment consists of
        • rectus femoris (femoral n.)
        • vastus lateralis (femoral n.)
        • vastus medialis (femoral n.)
        • vastus lateralis (femoral n.)
      • vastus lateralis is bordered by
        • at the level of the greater trochanter
          • lateral
            • subcutaneous tissue
          • medial
            • femur
            • vastus intermedius
            • vastus intermedius (anterior/medial)
          • anteromedial
            • rectus femoris
          • posteromedial
            • intermuscular septum
            • sciatic nerve
            • biceps femoris
  • Relevant Surgical Approaches
    • Hip Anterolateral Approach (Watson-Jones)
    • Hip Direct Lateral Approach (Hardinge, Transgluteal)
    • Hip Posterior Approach (Moore or Southern)
    • Femur Lateral Approach
    • Femur Posterolateral Approach
  • Related Anatomy
    • Quadriceps contusion
  • Clinical Conditions
    • Quadriceps contusion
Card
1 of 5
Private Note