It consists of injecting saline solution under ultrasound control into the calcification of the tendon, "washing" it in order to break up and in some cases extract the calcific material (approximately 75% of cases). 

The technique is performed on an outpatient basis, anesthetizing the area to be punctured. At the end of the "lavage" procedure, 1cc of triamcinolone acetonide (Trigon depot) and mepivacaine 2% 2 cc are infiltrated in the subacromial space, in order to prevent retinacular capsulitis in the operated shoulder. 

The objective is to alleviate or suppress pain and inflammatory manifestations, prevent or recover functional limitation, accelerate the favorable evolution of the process and reduce or eliminate the need for more aggressive treatments or with side effects.

Sometimes it is necessary, if the effect is partial or limited in time, a new "barbotage" between 6 and 12 weeks after the first one.

It is indicated in patients with calcific tendinosis refractory to conventional conservative treatment: NSAIDs and rehabilitation. 

It is a safe technique, but like any invasive procedure, it can have its adverse effects:

Allergic reaction to the introduced medication (Corticoid), transitory alteration of the BP and glycemia in diabetics. of blood glucose in diabetics, local bleeding, especially in patients who use antiplatelet or anticoagulant drugs. antiplatelet or anticoagulant drugs. 

There are some contraindications for performing the technique such as: known allergy to any of the infiltration compounds, pregnancy, known coagulopathy, diabetes (relative contraindication).