Table 1 Demographic and clinic features of the eligible patients
Features | Number of patients (%) |
|---|---|
Age (years) | 46.7 ± 15.4 |
Gender | |
Male | 11 (42.31) |
Female | 15 (57.69) |
BMI (kg/m2) | 25.1 ± 4.3 |
Acetabular bone defect type | |
Avascular necrosis of femoral head | 10 (38.46) |
Femoral neck fracture | 8 (30.77) |
Hip osteoarthritis | 4 (15.38) |
Ankylosing spondylitis | 3 (11.54) |
Developmental dysplasia of hip | 1 (3.85) |
Microorganism | |
Staphylococcus | 15 (57.69) |
Multiple organisms | 5 (19.23) |
Negative | 5 (19.23) |
Type of prosthesis fixation | |
Screw-cement-shell | 15 (57.69) |
Handmade acetabular spacer | 11 (42.31) |
Follow-up time (years) | 4.1 ± 2.2 |
First-stage (Paprosky) | |
I | 7 (26.92) |
II | 9 (34.62) |
III | 8 (30.77) |
Second-stage (Paprosky) | |
I | 4 (15.38) |
II | 11 (42.31) |
III | 9 (34.62) |
Hip Harris score (first stage) | 40.9 ± 14.0 |
Hip Harris score (second stage) | 81.2 ± 11.2 |
Interval duration between primary arthroplasty and confirmed PJI (months) | 52.3 ± 54.6 |
Time between stages (months) | 5.3 ± 3.7 |