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Table 1 Demographic information of the enrolled patients

From: Mid-term and long-term results of restoring rotation center in revision hip arthroplasty

Parameters

 

Gender

  Male

18

  Female

17

Age (years)

68.80 ± 8.47 (range, 34–79)

Body mass index (kg/m2)

23.61 ± 3.81 (range 15.57–34.5)

LLD(cm)

2.44 ± 1.77 (range, 0.5–7)

Mean follow-up (months)

97.60 ± 25.94 (range, 72–168)

Indication of primary hip arthroplasty

  DDH

10

  Femoral neck fracture

12

  Osteonecrosis of femoral head

6

  Ankylosing spondylitis (hip stiffness)

3

  Rheumatoid arthritis

2

  Tuberculosis (stationary stage)

1

  Perthes disease

1

Index primary hip arthroplasty

  Total hip arthroplasty

31

  Hemiarthroplasty

4

Revision times

 

  Primary revision

30

  Second times revision

4

  Third times revision

1

Paprosky classification (acetabular side)

  IIA

7

  IIB

9

  IIC

5

  IIIA

8

  IIIB

6

Index revision surgery

  Total revision

33

  Acetabular side only

2