Table 2 A comparison of the absolute values of preoperative and postoperative coronal lumbar-pelvic-femoral alignment and of the preoperative and postoperative JOA hip scores.

From: Changes of the coronal lumbar-pelvic-femoral alignment after conversion total hip arthroplasty in patients with unilateral ankylosed hip

 

Preoperative (n = 48)

Postoperative (n = 48)

p value

LS** (°)

9.0 (2.2 to 15.5)

5.5 (1.7 to 12.4)

0.005

PO** (°)

6.8 (3.9 to 10.0)

2.0 (0.9 to 4.0)

 < 0.001

HAA** (°)

10.0 (4.7 to 15.5)

6.0 (3.0 to 13.6)

0.003

LLD* (cm)

 − 1.9 ± 2.8

 − 1.2 ± 2.2

0.159

JOA hip score* (points)

56.7 ± 14.9

81.2 ± 9.5

 < 0.001

  1. LS, lumbar scoliosis; PO, pelvic obliquity; HAA, hip adduction angle. JOA, Japanese Orthopaedic Association.
  2. *Values are the mean ± standard deviation and were compared using a paired samples t-test. **Values are the median (interquartile range) and were compared using the Wilcoxon signed-rank test.
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