BAUMGAERTNER, MR. The value of the tip-apex distance in predicting failure of fixation of peritrochanteric fractures of the hip. J Bone Joint Surg [Am]. 1995, 77, 1058-1064
DIETER, M. Unstable intertrochanteric hip fractures in the elderly. J Am Acad Orthop Surg. 2004, 12, 179-190
KYLE, RF. Analysis of six hundred and twenty-two intertrochanteric hip fractures : a retrospective and prospective study. J Bone Joint Surg [Am]. 1979, 61, 216-221