How is Knee OA clinical subset?

Medial tibiofemoral +++ lateral tibiofemoral, patellofemoral compartments Xray: PA, lat, schuss Baker cyst A popliteal cyst communicating with the joint space is common The cyst may rupture into the posterior calf muscles, mimicking venous thrombosis and should be considered in ‘doppler negative’ leg swelling in the acute setting