Answer :
Final answer:
Knee joints are particularly susceptible to degenerative joint disease due to repetitive stress, overweight and obesity, and injuries that lead to the breakdown of joint cartilage and bone. Factors such as lack of physical activity and inflammation also contribute to the development and exacerbation of the condition.
Explanation:
Knee joints are commonly affected by degenerative joint disease (DJD) or osteoarthritis (OA) due to several factors including aging, repetitive loading from activities or manual labor, overweight and obesity, which lead to overloading of the joints, and injuries such as sport injuries or fractures.
The repetitive stress on the knee joints over time can lead to the breakdown of joint cartilage and bone, which are hallmark symptoms of OA. Moreover, fat cells in overweight individuals can generate low-level inflammation in response to high blood glucose levels, further increasing the risk.
The structure of the knee, being primarily supported by muscles and ligaments, poses a unique vulnerability. Injuries to these supporting structures can lead to instability and pain, accelerating the development of OA. Lack of physical activity can also increase susceptibility to inflammation and joint wear, further exacerbating the condition.
Knee joints are commonly affected by osteoarthritis due to weight-bearing, injuries, chronic stress, aging, obesity, and a sedentary lifestyle, leading to breakdown of joint cartilage and bone, resulting in pain, stiffness, and sometimes requiring joint replacement surgery.
The knee joints are commonly affected by degenerative joint disease (DJD), also known as osteoarthritis (OA), for several reasons. Knee joints bear a significant portion of the body's weight and are subject to both acute injury and chronic wear-and-tear. Factors such as aging, obesity, repeated stress from activities or sports, and injuries contribute to the breakdown of cartilage and bone in the joint, leading to the pain and stiffness characteristic of OA. Excess weight not only overloads the joints but also contributes to a state of low-level inflammation due to factors like high levels of glucose in the blood, as seen in diabetes, which is another risk factor for OA. Moreover, a sedentary lifestyle can increase susceptibility to such inflammation. Eventually, the joint damage may become so severe that joint replacement surgery could be necessary.
