Table 2 General information about the patients

PW

• Male

• 48 y

13 M

Bilateral os acromiale, only the left side was symptomatic

First operation

RF

• Male

• 42 y

6 M

Os acromiale on the left side, with signs of impingement

Third operation

TR

• Female

• 67 y

6 M

Os acromiale and treated PASTA type tear of RC, on the left side

Second operation

VL

• Male

• 28 y

5 M

Fracture of the acromion and coracoid process on the right side

First operation

VR

• Male

• 60 y

/

Fracture of the acromion, ribs and coracoid process on the right side

First operation