Videos obtained during a US-guided rotator cuff barbotage procedure. A 21G needle enters the calcification within the supraspinatus tendon.
The first video is from the initial stages of pulsation lavage. The central aspect of the calcification has partially broken up and the pulsation lavage creates a contained 'snow storm'. The outer shell maintains its shape at this point.
The second video is during the later stages of pulsation lavage. The central calcification continues to move but now the calcification shape and superior aspect of the outer shell is collapsing.