Table 3.

Muscle forces of the involved and uninvolved shoulders and their differences

Muscle forces	Affected side – pre operative Mean and (Range)	Affected side – last follow up Mean and (Range)	Unaffected side – last follow up Mean and (Range)	Difference between pre-operative and last follow up – affected side (P-Value)	Difference between affected and unaffected sides at last follow up (P-Value)
ABD1	3.58 (2.5 - 4)	4.50 (3.5 – 4.5)	4.91 (4.5 - 5)	P value is 0.000	P value is 0.026
E.R2	3.41 (2.5 - 4)	4.62 (3.5 – 4.5)	4.79 (4.5 - 5)	P value is 0.000	P value is 0.000
I.R3	4.41 (4 - 5)	4.70 (4 - 5)	4.87 (4.5 - 5)	P value is 0.000	P value is 0.000

1: Abduction; 2: external rotation with arm at side; 3: internal rotation