New Mechanism of Hip Endoprosthesis Damage Caused by Highfrequency Electrocautery
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Abstract
Primary total hip arthroplasty has become the most successful
orthopaedic operation since introduction by the British surgeon, Sir
John Charnley, in the 1960s [1,2]. Numbers of hip endoprosthesis
revisions are growing worldwide. In revision surgery of joints, highfrequency
electrocauterization instruments are used for homeostasis
and soft tissue dissection. If there is contact of these instruments with
the metal implants, flashover might occur. This can lead to thermal
microstructural changes in the material and as a consequence may
reduce the fatigue strength of the implant.
