Source of Support: None, Conflict of Interest: None
Trochanteric neck femur is very common in geriatric patients all over world. Various implants are evolved in the treatment. Dynamic Hip Screw (D. H. S) is considered a gold standard in their treatment by many surgeons. But D. H. S. does also fail. The author carried out Bone Model study to understand cause of failure of D. H. S. cases, and found out a fault in the design of D. H. S. as a possible cause- i.e. rotational instability of proximal fragment in operated D. H. S. New facts regarding biomechanics and anatomy of proximal femur were noticed. Based on these facts, biomechanical evaluation of various implants was done, especially to understand causes of implant failures in troachanteric fractures. The problem was studied from various angles, and a thesis was evolved to arrive at certain principles. If thesis principles are observed then we may be able to reduce the implant failure rate in trochanteric fractures.