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Mouse Knee Joints

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Caption: [Left] The knee joint of a normal mouse that endured an ACL-type injury. The injury triggered osteoarthritis and caused the cartilage on the femur (red) and tibia (green) to degrade, allowing the bones to sandwich together. [Right] This is the knee joint of a mouse that received gene therapy after the ACL injury. The cartilage is thick and healthy, and covers the bones completely, providing a cushion.

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