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Table 3 Radiological results

From: Single approach to double-channel core decompression and bone grafting with structural bone support for treating osteonecrosis of the femoral head in different stages

Pre-ARCO Last follow-up ARCO
IIB (n)IIC (n)IIIA (n)IIIB (n)IIIC (n)IV (n)
IIB (n = 15)14-1
IIC (n = 19)14221
IIIA (n = 34)275 2
IIIB (n = 4) 22
IIIC (n = 1) 1
Total (n = 73)141430933
Rate (%)19.18%19.18%41.10%12.33%4.11%4.11%