Spontaneous Osteonecrosis of the Knee - SONK. Also known as: Ahlbackâs disease. A condition of unknown aetiology characterized by the development of an area of osteonecrosis on the weight-bearing surface of the medial femoral condyle.
Friday 8 November 2013 09.16 EST First published on Friday 8 November 2013 09.16 EST. When 33 Chilean miners were hauled to the surface after 69 days trapped in a collapsed copper mine in 2010, more than a billion people around the world tuned in to watch as the rescue was broadcast live on television.
August 29, 2010 - Each of the trapped miners is given about 20 seconds to speak directly with family members for the first time since the accident. August 31, 2010 - Plan A drilling starts. September 3, 2010 - The Schramm T-130 drill, otherwise known as Plan B, arrives at the rescue scene.