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Table 3 Comparison of BPFS among Different Groups at 5 Years after THA

From: Mid-term low back pain improvement after total hip arthroplasty in 306 patients with developmental dysplasia of the hip

Clinical factor

Preoperative

p

Postoperative

p

Unilateral DDH Hip (N = 205)

Bilateral DDH Hips (N = 33)

Bilateral DDH Hips (N = 68)

Unilateral DDH Hip (N = 205)

Bilateral DDH Hips (N = 33)

Bilateral DDH Hips (N = 68)

Crowe I (N = 31)

Crowe II (N = 35)

Crowe III (N = 34)

Crowe IV (N = 105)

Asymmetry

Symmetry

Crowe I (N = 31)

Crowe II (N = 35)

Crowe III (N = 34)

Crowe IV (N = 105)

Asymmetry

Symmetry

BPFS

.52 ± .20

.45 ± .22

.29 ± .16

.31 ± .18

.51 ± .24

.52 ± .23

.000*

.987 ± .049

.989 ± .047

.988 ± .048

.991 ± .051

.95 ± .13

.92 ± .18

.000*

  1. BPFS Back Pain Functional Scale, DDH developmental dysplasia of the hip
  2. The values are given as the mean and the standard deviation. *p < 0.05