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Table 1 Demographic data

From: Minimum 8-year follow-up of revision THA with severe femoral bone defects using extensively porous-coated stems and cortical strut allografts

Parameters

Numbers

No. of patients

31

Male: female (no. of pts)

19: 12

Age (years) a

62 (32)

Primary diagnosis (no. of pts., %)

 Osteonecrosis of the femoral head

16 (51.6%)

 Developmental dysplasia of the hip

7 (22.6%)

 Primary osteoarthritis

5 (16.1%)

 Femoral neck fractures

2 (6.5%)

 Rheumatoid arthritis

1 (3.2%)

Time from primary to revision THA (years) a

6.4 (7.8)

Reason for revision (no. of pts., %)

 PFF

12 (38.7%)

 AL

10 (32.3%)

 PJI

9 (29.0%)

Fixation of previous femoral stems (no. of pts., %)

 Cement

20 (64.5%)

 Cementless

11 (35.5%)

Degree of femoral bone defects (Paprosky classification)

 Type IIIA

19 (61.3%)

 Type IIIB

9 (29.0%)

 Type IV

3 (9.7%)

ETO utilized

7 (22.6%)

Follow-up (years) b

11.0 ± 1.5 (range, 8.1–13.5)

  1. AL Aseptic loosening, PJI Periprosthetic joint infection, PFF Periprosthetic femoral fracture, ETO Extended trochanteric osteotomy
  2. a Skewed distribution data are presented as medians with interquartile ranges
  3. b Normal distribution data are presented as the mean ± standard deviation