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We inserted an electrode up the femoral neck into the femoral head of ten patients undergoing a metal-on-metal hip resurfacing arthroplasty through a posterior surgical approach and measured the oxygen concentration during the operation. In every patient the blood flow was compromised during surgery, but the extent varied. In three patients, the oxygen concentration was zero at the end of the procedure. The surgical approach caused a mean 60% drop (p < 0.005) in oxygen concentration while component insertion led to a further 20% drop (p < 0.04). The oxygen concentration did not improve significantly on wound closure. This study demonstrates that during hip resurfacing arthroplasty, patients experience some compromise to their femoral head blood supply and some have complete disruption.

Original publication




Journal article


J bone joint surg br

Publication Date





1468 - 1474


Adult, Aged, Arthroplasty, Female, Femur Head, Fluoroscopy, Humans, Male, Metals, Middle Aged, Monitoring, Intraoperative, Nitrous Oxide, Osteoarthritis, Hip, Oxygen Consumption, Regional Blood Flow