Osteoarthritis primarily affects which joints?

Osteoarthritis primarily affects which joints?

• A. Knees
• B. Shoulders
• C. Wrists
• D. Ankles

Answer: (A)

Osteoarthritis is a degenerative joint disease driven by age and repetitive mechanical stress, causing cartilage breakdown and changes in the bone. Joints that bear the most weight and endure the most use, like the knee, are most prone to developing OA. The knee is a classic, common site because it supports body weight during activities and undergoes frequent movement and loading, accelerating wear over time. While OA can involve other joints such as the shoulders, wrists, or ankles, these are less typically the primary sites compared to the knee.

Osteoarthritis is a degenerative joint disease driven by age and repetitive mechanical stress, causing cartilage breakdown and changes in the bone. Joints that bear the most weight and endure the most use, like the knee, are most prone to developing OA. The knee is a classic, common site because it supports body weight during activities and undergoes frequent movement and loading, accelerating wear over time. While OA can involve other joints such as the shoulders, wrists, or ankles, these are less typically the primary sites compared to the knee.