Tricompartmental Osteoarthritis: Symptoms, Treatment, and More - Healthline
Tricompartmental osteoarthritis is a type of knee osteoarthritis (OA) that affects all three knee compartments. These are: the medial femoral-tibial compartment, on the inside of the knee the patellofemoral compartment, formed by the femur and kneecap the lateral femoral-tibial compartment, on the outside of the knee OA can affect any of these parts. When it occurs in all three, this is tricompartmental osteoarthritis. The impact can be more severe when OA affects three compartments rather than just one. The symptoms of tricompartmental OA are similar to those of unicompartmental OA, but they affect all three parts of the knee joint. Symptoms may include: swelling and stiffness in the knee difficulty bending and straightening the knee inflammation, especially after activity pain and swelling that worsens while sleeping or in the morning pain that increases after sitting or resting creaking, clicking, snapping, or grinding noise from the knee weakness or buckling in the knee impaired ga...