The Effect of Postoperative Corticosteroid Administration on Free Vascularized Fibular Grafting for Treating Osteonecrosis of the Femoral Head

Table 1

Demographic details of patients.

Variables	PCA group	Control group
Age at the time of surgery (y)	28.6 (17–38)	29.1 (18–38)
Female : male (n)	30 : 9	28 : 11
Cumulative prednisolone dose before surgery (g)	10.4 (5.2–19.1)	11.1 (4.3–21.2)
Preoperative Steinberg stage (hips)
Stage II	19	19
Stage III	25	25
Stage IV	23	23
Preoperative Harris hip score	72.0±9.1	72.3±8.5
Stage II	80.4±6.2	81.4±5.7
Stage III	72.9±6.1	72.3±4.5
Stage IV	64.4±7.5	65.2±6.8
Mean daily dose of prednisolone after surgery (mg)	5.6 (2.5–10)	0
Duration of corticosteroid treatment after surgery (mo)	28.6 (9–66)	0
Mean follow-up (y)	5.4 (2–10)	5.0 (2–10)