Knee Anatomy Ernest F. Talarico, Jr., Ph.D. Associate Director of Medical Education Associate...
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Transcript of Knee Anatomy Ernest F. Talarico, Jr., Ph.D. Associate Director of Medical Education Associate...
Knee Anatomy
Ernest F. Talarico, Jr., Ph.D.
Associate Director of Medical Education
Associate Professor and Course Director, Human Gross Anatomy & Embryology
Coordinator, Anatomical Education Program
Indiana University School of Medicine-Northwest
AY14-15
Knee Joint
• The most complex joint in the body. Femur round, tibia flat.
• Comprised of 3 bones.– Femur– Tibia– patella
Patella
• Patella tendon- attaches to the anterior of the tibia.
• Quadriceps tendon-attaches the quadriceps to the patella.
Cruciate Ligaments• Major
stabilizing ligaments in the knee
• Anterior Cruciate Ligament (ACL)-prevents the tibia from sliding out in front of the femur
• Injuries caused by hyperflexion
Cruciate Ligaments
• Posterior Cruciate Ligament (PCL)-It prevents the tibia from sliding backwards under the femur.
• Injuries usually
caused by Hyperextension
Collateral Ligament
• Medial Collateral Ligament (MCL)- connect the tibia and the femur.
• A force from the lateral side could cause a tear.
Collateral Ligament
• Lateral Collateral Ligament (LCL)- connect the fibula to the femur.
• A force from the medial side can cause a tear of the LCL
Cartilage
• Articulate Cartilage-covers the moving parts of the knee.
• Chronic damage to articulate cartilage leads to arthritis.
Cartilage
• Meniscus- half moon shaped cartilage lying between the knee joint.