From: Fibula allograft propping as an effective treatment for early-stage osteonecrosis of the femoral head: a systematic review
Study
Radiographic progression (%)
Radiographic progression on stage (%)
I
II
III
IV
Wei et al.
42%
Zeng et al.
22%
IIB, 0%
IIC, 30.77%
Wu et al.
69%
Cao et al.
10.3%
26.9%
Feng et al.
7.25%
36.23%