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In 11 patients, the oxygenation was measured in the superolateral quadrant of the femoral head during resurfacing with a modified posterior approach, designed to preserve the blood supply, using a gas-sensitive electrode. These were compared with measures from 10 patients in whom the standard posterior approach was used. The modified approach patients maintained a significantly (P < .005) higher amount of relative oxygenation after the approach, 78% (standard deviation [SD], 45%) vs 38% (SD, 26%), and acetabular component implantation, 74% (SD, 56%) vs 20% (SD, 28%). The modified posterior approach, unlike the standard extended approach, does not significantly compromise the blood supply to the head; and we recommend this approach be considered for hip resurfacing.

Original publication

DOI

10.1016/j.arth.2009.12.018

Type

Journal article

Journal

J arthroplasty

Publication Date

04/2011

Volume

26

Pages

404 - 408

Keywords

Adult, Arthroplasty, Replacement, Hip, Electrodes, Female, Femur Head, Follow-Up Studies, Hip Joint, Humans, Male, Metals, Middle Aged, Osteoarthritis, Hip, Oxygen, Regional Blood Flow, Treatment Outcome