More specifically the impingement syndrome is a mechanical compression of the so called rotator cuff, which stabilizes the shoulder joint. These tendons are situated in the narrow bony canal between the ball and the socket (acromion) of the joint. As a consequence of the mechanical irritation (rubbing), irritations of the bursa, inflammatory reactions and crack formations within the rotator cuff can occur. Thus the symptoms can be intensified substantial.
A bony compression at the bottom of the acromion, calcifications, and bursitis or bone fractures e.g. can cause an impingement syndrome.
Common symptoms are painful mobility restrictions of the arm (sideward raising of the arm and moving overhead), rest pain and pain at night sometimes combined with substantial acute symptoms (especially in cases of the so called calcareous shoulder).
As long as the rotator cuff does not show any rupture formations the first step in therapy always is an intensive conservative/nonsurgical treatment. In chronic and therapy resistant cases and after an unsuccessful nonsurgical therapy the arthroscopic therapy (arthroscopic subacromiale decompression) as a minimally invasive procedure shows great success.
An unhinding sliding of the upper arm tendon of the shoulder joint is reconstructed. The minimally possible procedure of an arthroscopic surgery thereby can ensure the integrity of the tendon and the smallest possible excision of constringent structures without functional loss.
Crack formations within the rotator cuff (supra- or intraspinatus tendon) can additionally be treated surgically within an arthroscopic decompression (reconstruction of rotator cuff).