EHS 310 Lecture Notes - Lecture 4: Patellar Ligament, Lower Extremity Of Femur, Quadriceps Tendon
2 Jan 2019
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Document Summary
In b/w two long bones increases vulnerability to torque forces. Free floating bone attached to quadriceps tendon and patellar ligament. Undersurface articulates w/ intercondylar region of femur and has thick articular cartilage. Increases ima of knee extension layer to disperse large compression forces. Patellofemoral pain is most common knee problem. Fibrous capsule reinforced by muscles, tendons, ligaments, fascia. 170 to 174 degrees - due to angle of inclination of femoral head. Lateral angle of knee less than 170 degrees. Lateral angle of knee greater than 180 degrees. Line connecting femoral head w/ center of knee joint. Mechanically links horizontal plane movements of major lower limb joints. Horizontal plane movement of lower limb joint can directly affect other lower limb joints. Loose ligamentous attachment to tibia and joint capsule. Allows menisci to pivot and slide during knee movement. Deepens articular surface of tibia for femoral condyle. Joint reactive force approximates 3x bodyweight w/ each step.
