Dynamic hip screw

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File:Cdm hip hardware 369.jpg
Dynamic hip screw

Dynamic hip screw (DHS) or Sliding Screw Fixation is a type of orthopaedic implant designed for fixation of certain types of hip fractures which allows controlled dynamic sliding of the femoral head component along the construct.Script error: No such module "Unsubst". It is the most commonly used implant for extracapsular fractures of the hip,[1] which are common in older osteoporotic patients. There are 3 components of a dynamic hip screw, including a lag screw (inserted into the neck of the femur), a sideplate and several cortical screws (fixated into the proximal femoral shaft). The idea behind the dynamic compression is that the femoral head component is allowed to move along one plane; since bone responds to dynamic stresses, the native femur may undergo primary healing: cells join along boundaries, resulting in a robust joint requiring no remodeling.

Additional images

File:Cdm hip implant 348.jpg
Fracture supported by dynamic hip screw

References

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