[Arthroscopy-guided core decompression and bone grafting combined with selective arterial infusion for treatment of early stage avascular necrosis of femoral head].

To observe the clinical effects of arthroscopy-guided core decompression and bone grafting combined with selective arterial infusion for early stage avascular necrosis of femoral head.From January 2010 to December 2014, 76 patients(76 hips) diagnosed as Ficat II stage avascular necrosis of femoral head were randomly divided into experimental group and control group. In the experimental group, there were 27 males and 8 females aged from 24 to 55 years old with an average of (43.96±6.81) years, treated with arthroscopic-guided core decompression and bone grafting combined with selective arterial infusion. Along the direction of the femoral neck, an 8 mm-diameter tunnel to necrotic areas was drilled, then curettage of necrotic bone was performed under arthroscope, and the iliac bone was grafted. In the control group, there were 29 males and 12 females aged from 26 to 56 years old with an average of (44.62±7.33) years, treated with percutaneous core decompression combined with selective arterial infusion. The preoperative and postoperative Harris scores were recorded and the changes of X-rays were analyzed.All the patients were followed up with an average of 30 months. Postoperative follow-up at 12 months showed that there was significant difference in imaging outcome between two groups(P 0.05), but there was significant difference in postoperative Harris score(P<0.05).The two surgical procedures for early femoral head necrosis are effective. Using arthroscopic-guided core decompression method, the necrotic bone can be positioned and scraped more accurately, and can obtain better results.