The Orthopedic Competition "EGAA Case Scenario Competition" With Prof. Dr. Maged Mohamed Sami, Professor of Orthopedics, Ain Shams University -- Answer : (Patellar tendon reconstruction) Extensor mechanism disruption is the main cause of giving way in this patient Intact extensor mechanism is essential before cruciate reconstruction Non united distal pole patella fracture ( small fragment) after 2 times fixation will most likely fail to unite with further surgery. The patient had dash board injury with patellar fracture and PCL tear which was misdiagnosed as ACL tear.