Patient Positioning
Patient lies supine, knee 20°–30° flexed. Place a small pillow under the joint to keep this position.
Probe Positioning
Place the transducer on a sagittal plane in the midline over the quadriceps tendon and the cranial part of the patella (landmark).
Synovial effusion in a patient with psoriatic arthritis (parapatellar joint recess lateral)
Suprapatellar joint recess with synovitis of the knee with effusion, synovial proliferation and neovascularization in a patient with psoriatic arthritis