Clinical value of 3D printing guide plate in core decompression plus porous bioceramics rod placement for the treatment of early osteonecrosis of the femoral head

Table 3 Harris scores in two groups

	Preoperatively	6 months postoperatively	12 months postoperatively	18 months postoperatively
Experiment group (n = 20)	72.70 ± 3.81	88.55 ± 1.47^a,b	91.80 ± 1.51^a,b	94.20 ± 0.95^a,b
Control group (n = 20)	70.40 ± 3.36	83.75 ± 2.23^a	89.65 ± 1.46^a	91.85 ± 0.99^a
P values	0.051	< 0.05	< 0.05	< 0.05

ISSN: 1749-799X