Fig. 5

Patient reported outcomes [Munich Shoulder Questionnaire (MSQ), Shoulder Pain and Disability Index (SPADI), Disability of the Arm, Shoulder and Hand (DASH), relative Constant Score (Rel. CS)] of the monoaxial, the polyaxial and the polyaxial + blade group at a mean follow-up of 1 year. Data are given as vertical box plots (median horizontal box line; 25–75 % interquartile ranges; standard deviations horizontal line)