Madinah Al-Munawarah, Safar 07, 1432 / Jan. 11, 2011, SPA -- The Director General for Health Affairs of Al-Madinah Al-Munawarah Region Dr. Abdullah bin Ali Al-Taifi opened here today the International conference on Knee Joint Surgery and scopy, organized by the Health Affairs in Al-Madinah. A number of participants from inside and outside the Kingdom are set to present some 40 working papers in addition to holding some 20 workshops.