It depends significantly on the type of surgery performed (rotator cuff
, labrum, etc.
) and also the skill and experience of the surgeon. Many surgeons use knotless devices where no knot tying is required, however, i recommend you seek out a shoulder specialist that ties knots for everything as the results are much better.
Learn more here: http://www.Theshouldercenter.Com/shoulderpain/2010/shoulde.