The CS is a commonly used outcome measure for assessing the outcomes of the treatment of shoulder disorders including the pain score, functional assessment, range of motion and strength measures.

In week 6, 52 and in the yearly follow ups for comparison reasons the investigators also assess the CS of the not affected shoulder. Reported value is the impaired shoulder-functionality in percent. 100% are equivalent to an unimpaired shoulder function.

The Disabilities of the Arm, Shoulder and Hand (DASH) scoring system was developed to assess the level of disability for any patient with any condition affecting the upper limb by covering domains including symptoms, physical function, social function and psychological function.

The EQ-5D-3L/5L is a standardized instrument for use as a measure of health outcome. It was designed for self-completion covering mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Furthermore, health state is indicated by a Visual Analog Scale (VAS). EQ-5D assesses the health status of the patients in an one-dimensional number (1-3/1-5).

The SSV is defined as a patient's subjective shoulder assessment expressed as a percentage of an entirely normal shoulder, which would score 100%.

Analyzing the radiological imaging for possible dislocation of fracture fragments or other complications