<prompt> what is Posada;s fracture ?Transcondylar fracture of humerusFracture lateral condyle of humerusFracture medial condyle of humerusFracture anatomical neck of humerus  <response>: Transcondylar fracture of the distal pa of the humerus with associated dislocation Posadas fracture is rare. Stabilization of this fracture is often difficult because the distal fragments are small and are predominantly composed of impacted aicular cailage. Ref : essential ohopaedics maheshwari and mhaskar 9th ed 