Final answer:
The spine is typically NOT affected by osteoarthritis when considering it in its entirety, as OA usually affects specific parts such as the lower back and neck but not the entire spine.
Step-by-step explanation:
Osteoarthritis (OA) is a degenerative joint disease characterized by the breakdown of cartilage and bone, leading to pain, swelling, and reduced motion in affected joints. This condition commonly impacts joints such as the knees, hips, and the spinal vertebrae. However, the option that typically is NOT affected by osteoarthritis is the spine in its entirety. While the neck and lower back (part of the spinal column) can be involved in OA, the entire spine is not usually affected as it includes regions, such as the mid and upper back, that are less prone to this condition. Most frequently, OA affects joints that bear weight or undergo excessive use over time.
- The knees are commonly affected due to their significant role in bearing the body's weight and the stress they endure from regular movement and if there's previous joint injury.
- Similarly, the hips are susceptible to OA, being major weight-bearing joints.
- The back, particularly the lower back, can develop OA, as it supports a considerable portion of body weight and is involved in a wide range of movements.
OA can result from a combination of factors, including age, joint injury, misalignment, excess body weight, and genetics. Treatment focuses on relieving symptoms and improving joint function.