From: A comparative study of cortico-cancellous iliac bone graft with or without the combination of vascularized greater trochanter flap for the management of femoral head osteonecrosis: a minimum 6 years follow-up
Postoperative necrotic
region repair
Group A
Group B
P
Improved
19
23
0.020
Stabilized
38
14
Aggravated
27