**Tricompartmental Osteoarthritis - Everything You Should Know About** ![](https://i.imgur.com/evnK6Y9.png) A **[tricompartmental osteoarthritis](https://www.cleansway.com/blog/tricompartmental-osteoarthritis-everything-you-should-know-about)** is a specific form of arthritis that affects our knee joints. The cause of this form of osteoarthritis is the same where the soft rubbery cartilages wear away with time. This results in the rubbing of bones against each other. This is a painful condition that may also cause inflammation.