Biomechanical Responses and Injury Characteristics of Knee Joints under Longitudinal Impacts of Different Velocities

Figure 11

(a) Case 1: male, 21 years old, long distance runner, right knee pain, and swelling after knee longitudinal impact injury in one long-distance race. MRI showed that medial femur and medial tibia had mild bone bruise, bone marrow edema, and mild joint effusion. (b) Case 2: male, 77 years old, right knee pain, and swelling after one falling longitudinal impact injury at one meter high. MRI showed widely that medial femoral condyle had bone marrow injury and edema. Medial tibia had mild bone bruise and joint effusion. (c) Case 3: male, 22 years old, soldier, right knee pain, swelling, and movement dysfunction after knee longitudinal impact injury in one military training. MRI showed widely that medial tibia had bone marrow edema, meniscus injury, and rupture of anterior cruciate ligament.

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