Steffen R T, Smith S R, Urban J P G, McLardy-Smith P, Beard D J, Gill H S, Murray D W
Department of Orthopaedic Surgery, Nuffield Orthopaedic Centre, Windmill Road, Oxford OX3 7LD, UK.
J Bone Joint Surg Br. 2005 Nov;87(11):1468-74. doi: 10.1302/0301-620X.87B11.16780.
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.
我们通过后外侧手术入路，将一根电极经股骨颈插入接受金属对金属髋关节表面置换术的10例患者的股骨头内，并在手术过程中测量氧浓度。在每例患者中，手术期间血流均受到影响，但程度各异。3例患者在手术结束时氧浓度为零。手术入路导致氧浓度平均下降60%（p<0.005），而植入假体组件又导致氧浓度进一步下降20%（p<0.04）。伤口闭合时氧浓度未显著改善。本研究表明，在髋关节表面置换术中，患者的股骨头血供会受到一定影响，部分患者血供会完全中断。
