RT Journal A1 Ramsey, Matthew L. A1 Getz, Charles L. A1 Parsons, Bradford O. T1 What's New in Shoulder and Elbow Surgery JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2010 FD April 1 VO 92 IS 4 SP 1047 OP 1061 DO 10.2106/JBJS.J.00072 UL http://dx.doi.org/10.2106/JBJS.J.00072 AB The level of evidence is indicated at the end of each review when it is known. Particular attention should be paid to the level-I and II studies as they represent randomized controlled studies. It should be noted, however, that level-I or II studies are not all well designed, well executed, or scientifically valid. Additional level-III and IV studies representing important topics in shoulder and elbow surgery are also included in the review.