Dynamic hip screw: implant failure

Case contributed by Dr Maulik S Patel
Modality: X-ray

Implant failure on the right with malunion of the NOF fracture. Normal DHS on the left. 

Case Discussion

Normal post-op DHS appearance:

  • lag screw should be in the center of the femoral head
  • tip of lag screw should be 0.5 inch away from femoral head articular surface
  • side-plate closely abutting lateral femoral cortex without any gap
  • screws for plate fixation should just penetrate medial femoral cortex
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Case Information

rID: 10152
Case created: 10th Jul 2010
Last edited: 18th Nov 2015
Inclusion in quiz mode: Included

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