Patient Positioning
Patient seated in front of the examiner, hand palm down resting on a examination table.
Probe Positioning
Place the transducer on longitudinal planes over the joints and digits of interest. Do not use any pressure – especially while looking for effusion or using doppler mode.
Note: a patient with history of penetrating trauma at the ulnar aspet of the right hand with difficulties to extend and abduct his 5th finger shows a tear of the abductor digiti minimi muscle (loss of continuity of the muscle fibers)