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Table 3 Preoperative and the latest follow-up HHS and VAS in groups A and B

From: One-stage simultaneous hip-preserving surgeries for the management of bilateral femoral head osteonecrosis: a mean 7.0-year follow-up

Parameters

Group A

p value*

Group B

p value*

Pre-HHS (mean ± SD)

70.7 ± 3.5

< 0.01

58.1 ± 5.0

< 0.01

Post-HHS (mean ± SD)

92.4 ± 4.0

84.2 ± 5.8

Pre-VAS (mean ± SD)

4.8 ± 1.2

< 0.01

8.0 ± 1.9

< 0.01

Post-VAS (mean ± SD)

1.1 ± 1.0

2.5 ± 1.9

  1. HHS, Harris Hip Score; VAS, Visual Analogue Scale. *p values indicated intra-group difference comparison, and the Mann-Whitney U test was used
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X