Accidental drill bit scoring of a total hip arthroplasty femoral component with subsequent fatigue fracture.
In the case of a 59-year-old man, failure of a total hip arthroplasty was associated with a latent fatigue fracture of the femoral component. The fatigue fracture was initiated by a drill bit score that created a significant stress concentration in the midlateral section of the femoral implant. The score occurred when wiring was used to reattach the greater trochanter after the femoral component was cemented. In any procedure requiring reattachment of the greater trochanter in the presence of an already cemented femoral component, the wiring should be extramedullary.
D001696:Biomechanical Phenomena; D001858:Bone Nails / Q000009:adverse effects; D004868:Equipment Failure; D005269:Femur / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010027:Osteotomy / Q000009:adverse effects / Q000295:instrumentation; D012086:Reoperation