About this video
Last updated: 9 October 2026
The video says osteoarthritis of the knee is usually diagnosed with a history and a physical examination that corroborates the history given. It says an X-ray is usually able to confirm osteoarthritis by showing a decrease in the joint space.
Key points
- The video links the reduced joint space to wear and tear of the cartilage, which it calls the degeneration in the joint.
- It describes cartilage as the white, resilient tissue that coats the surface of the bones and helps the joint move.
- It says cartilage is very smooth and is able to take shocks and compression.
Questions this video answers
How is knee osteoarthritis diagnosed?
The video says osteoarthritis of the knee is usually diagnosed with a history and a physical examination that fits the history. To confirm it, an X-ray is usually able to show a decrease in the joint space.
What does a reduced joint space on X-ray mean?
The video links a decrease in the joint space to wear and tear of the cartilage, which it describes as the degeneration in the joint. It describes cartilage as the smooth, resilient tissue that coats the bone surfaces.
