Human Knee Arterial Supply: A Comprehensive Anatomical Guide

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The arterial supply of the human knee represents a complex network of vessels that ensures adequate blood flow to this critical joint. Understanding this intricate vascular system is essential for surgeons, interventional radiologists, and medical professionals involved in knee procedures and trauma management.

By Henry Vandyke CarterHenry Gray (1918) Anatomy of the Human Body (See “Book” section below)Bartleby.com: Gray’s Anatomy, Plate 552, Public Domain, Link

Labeled Components Description

Highest Genicular: A superior branch from the popliteal artery with a diameter of 1-2mm. This vessel provides crucial blood supply to the superior aspect of the knee joint and participates in the periarticular anastomotic network.

Descending Branch of Lateral Femoral Circumflex: A significant vessel measuring 2-3mm in diameter. It contributes to the lateral geniculate arterial network and supplies the vastus lateralis muscle.

Musculo-articular Branch of Highest Genicular: A specialized branch approximately 1mm in diameter. This vessel supplies both muscular and articular tissues in the superior knee region.

Saphenous Branch of Highest Genicular: A small vessel measuring 0.5-1mm that accompanies the saphenous nerve. It provides cutaneous blood supply and contributes to the superficial vascular network.

Medial Superior Genicular: An important vessel measuring 1-2mm in diameter. It forms significant anastomoses with other genicular vessels and supplies the medial knee structures.

Lateral Superior Genicular: A vessel of similar caliber to its medial counterpart (1-2mm). This artery supplies the lateral knee structures and participates in the arterial anastomotic network.

Lateral Inferior Genicular: A vessel originating from the popliteal artery below the joint line. It provides crucial blood supply to the lateral tibial plateau and meniscus.

Medial Inferior Genicular: An essential vessel supplying the medial tibial plateau and meniscus. It forms important anastomoses with superior vessels to maintain tissue perfusion.

Fibular: A branch supplying the proximal fibula and associated soft tissues. This vessel contributes to the stabilizing structures of the lateral knee.

Anterior Recurrent Tibial: A vessel arising from the anterior tibial artery measuring 1-1.5mm. It ascends anteriorly to supply the patellar region and participate in the anastomotic network.

Anterior Tibial: One of the major vessels of the leg with a diameter of 2-3mm. It provides crucial blood supply to anterior leg structures and contributes to the knee’s vascular network.

Vascular Network Organization

Anastomotic Patterns

The knee’s vascular supply features extensive anastomoses between vessels. These connections ensure redundant blood supply and maintain tissue perfusion during joint movement.

Clinical Significance

Understanding vascular anatomy is crucial for surgical approaches. The rich anastomotic network provides collateral circulation during injury or surgical intervention.

Surgical Considerations

Vascular Preservation

Surgical techniques must respect vascular anatomy to prevent complications. Knowledge of vessel location guides surgical approaches and minimizes risk.

Trauma Management

Vascular injury patterns follow predictable anatomical distributions. Recognition of normal anatomy aids in diagnosis and treatment of knee trauma.

Conclusion

The complex arterial network of the knee provides robust blood supply through multiple anastomotic connections. This knowledge is fundamental for successful surgical intervention and management of knee pathology.

  1. “Human Knee Arterial Network: Complete Anatomical Guide”
  2. “Knee Vascular Anatomy: A Surgical Perspective”
  3. “Understanding Knee Blood Supply: Clinical Analysis”
  4. “Knee Joint Arteries: Comprehensive Review”
  5. “Vascular Anatomy of the Human Knee: Professional Guide”

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