RT Journal T1 Arthroscopic Lavage Plus Corticosteroids Was More Effective Than Arthroscopic Lavage Plus Placebo or Joint Aspiration Plus Corticosteroids for Arthritis of the Knee JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2007 FD May 1 VO 89 IS 5 SP 1137 OP 1137 DO 10.2106/JBJS.8905.ebo1 UL http://dx.doi.org/10.2106/JBJS.8905.ebo1 AB