Table 3.

Pre- and postoperative Constant score

	Preoperative mean ± SD	Postoperative mean ± SD	P value
Pain (15)	8.3 ± 2.4	14.8 ± 1.1	<0.001*
Activity level (10)	4.0 ± 0	9.7 ± 1.3	<0.001*
Arm positioning (10)	7.3 ± 1.0	9.7 ± 0.7	<0.001*
Strength of abduction 90º or highest level patient can achieve (Pounds) (25)	18.3 ± 3.4	24.6 ± 1.2	<0.001*
Range of motion
Forward flexion (10)	7.3 ± 1.0	9.7 ± 0.7	<0.001*
Lateral elevation (10)	7.3 ± 1.0	9.9 ± 0.4	<0.001*
External rotation (10)	5.3 ± 1.0	9.7 ± 0.7	<0.001*
Internal rotation (10)	5.3 ± 1.0	9.7 ± 0.7	<0.001*
Total score (100)	63.3 ± 9.3	97.8 ± 6.2	<0.001*

SD Standard deviation

* Wilcoxon signed ranks test