Verkalkende tendinitis van de schouder:
Is er een te prefereren chirurgische behandeling?

Calcifying tendinitis of the shoulder is a common disorder and has a large disease burden. The disease is first treated conservatively, including anti-inflammatory drugs, ice-therapy, physiotherapy, corticosteroid injections, extracorporeal shock wave therapy (ESWT) and/or needling. After a failed conservative treatment, surgery is often the next step treatment. However, there is no consensus about whether there is an preferred surgical procedure. Several studies have investigated different surgical procedures separately, but there are not any comparing studies available in current literature, especially no Randomized Controlled Trial (RCT). There are three main surgical procedures to treat calcifying tendinitis of the shoulder: The first one is to perform an acromioplasty according to Neer (including the removal of the anterior edge and undersurface of the anterior part of the acromion with the attached coraco-acromial ligament in combination with a bursectomy); The second procedure is the same acromioplasty but in combination with debridement of the calcification; The last procedure is to solely debride the calcifications without an acromioplasty.

Our hypothesis is that all three surgical treatments (Arthroscopic Neer, Arthroscopic debridement of calcifications or Arthroscopic Neer + debridement of calcifications) will lead to a significant pain reduction and all three surgical procedures shows to the same reduction, both in the short term (6 weeks, ± 1 week) and in the midterm (6 months, ± 2 weeks).

•Start T=0 (>6 months of conservative treatment)

•6 weeks post-operatively

•6 months post-operatively

There are three main surgical procedures of calcifying tendinitis of the shoulder. The first one is to perform an acromioplasty according to Neer (including the removal of the anterior edge and undersurface of the anterior part of the acromion with the attached coraco-acromial ligament in combination with a bursectomy). The second procedure is the same acromioplasty but then in combination with debridement of the calcifications. This debridement will be done by localizing the calcifications by needling during shoulder arthroscopy, when the calcification is localized it will be debrided using a shaver and extensive rinsing. The last procedure is to solely debride the calcifications without an acromioplasty.