Upon hearing the term calcific tendinopathy, many people may think of a complete calcification of the shoulder joint. However, so-called calcific tendinopathy is calcification of specific areas of the shoulder. The supra- and infraspinatus tendons are located in the narrow space between the shoulder ball joint and the acromion. These tendons and their associated muscles are primarily responsible for abducting our arms laterally and rotating them outward. Although the space in which the tendon moves is very narrow, it does not cause any problems among healthy people.
However, if this part of our body is overloaded unilaterally or permanently, this space can narrow. Pressure is thus exerted on the tendon and bursa. The tendon is rubbing against the bursa and is therefore stressed, losing its elasticity and resilience. If this happens over prolonged periods, calcifications or calcium deposits can develop on the tendon, the late consequences of recurrent bursitis.