THE DHS (DYNAMIC HIP SCREW) IMPLANT SYSTEM FOR TREATMENT OF UNSTABLE PROXIMAL FEMORAL FRACTURES

The DHS-Implant system is a technically simple and widely used operati ve treatment modality for pertrochanteric fractures of the femur. In u nstable 4 part-fractures rotation of the head and neck fragment around the lag screw and a significant impaction might lead to a lateralisat ion of the greater trochanter and therefore to an important shortening . To prevent these effects we treated 17 patients with 4 part-fracture s with a prototype of a modular trochanteric DHS buttress plate. With this additional implant the lateralisation of the greater trochanter c ould be prevented in all cases. This also leads to a limitation of the telescoping, with less shortening even with immediate full weight bea ring.