Olséen, P.; Jonsson, B.; Ceder, L.; Besjakov, J.; Olsson, O.; Sernbo, I.; Lunsjö, K. The Hansson Twin Hook Is Adequate for Fixation of Trochanteric Fractures: 2 Fixation Failures in a Series of 157 Prospectively Followed Patients. ActaO 2008, 79, 602-608.