1. Al-yassari G, Langstaff RJ, Jones JW, Al-Lami M LA (2002) The AO/ASIF proximal femoral nail (PFN) for the treatment of unstable trochanteric femoral fracture. Injury 33(5):395–399
2. Baumgaertner MR, Curtin SL, Lindskog DM, Keggi JM (1996) The value of the tip-apex distance in predicting failure of fixation of peritrochanteric fractures of the hip. J Bone Joint Surg Am 78(9):1058–1064
3. Cleveland M BDM, Thompson F R, Hudson J, Wilson J, Ishizuka Tadao (1959) A ten year analysis of intertrochanteric fractures of the femur. J Bone Joint Surg 41-A:1399–1408
4. Friedl W, Colombo-Benkmann M, Colombo-Benkmann M, Machens HG, Mieck U (1994) Gamma nail osteosynthesis of per- and subtrochanteric femoral fractures. 4 years experiences and their consequences for further implant development. Chirurg 65(11):953–963
5. Friedl W, Krebs H, Krebs H LA (1990) The significance of individual patient characteristics for loading capacity and deformation of the proximal end of the femur. Unfallchirurg 93(8):364–371