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Table 1 Results of the pre- and postoperative examinations and the survival rate according to lesion size and stage (Steinberg classification).

From: Modifications to advanced Core decompression for treatment of Avascular necrosis of the femoral head

Stage Preoperative 6 weeks Follow-up
  N mHHS VAS mHHS VAS Survival mHHS VAS Survival
2a 3 82.00 3.67 91.00 0 100 89.67 0.33 100
2b 13 75.57 2.92 86.43 0.83 100 82.75 0.73 84.6
2c 13 69.93 4.23 85.00 1.08 84.6 83.13 1.38 61.5
2 (all) 29 73.65 3.61 86.27 0.85 100 83.78 0.91 75.9
  1. (mHHS: Modified Harris Hip Score; VAS: Pain according to Visual Analogue Scale)