Patient Positioning
Patient seated in front of the examiner, hand palm up resting on a examination table.
Probe Positioning
Place the transducer on a longitudinal planes over the STT joint. Check the vessels in order to perform a safe injection.





note: injection of the STT joint (Scaphotrapeziotrapezoidal Joint) out of plane in patient with CPPD arthropathy and synovitis of the STT joint.