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Table 2 VAS scores before and after the operation

From: Study on the outcome of patients with aseptic femoral head necrosis treated with percutaneous multiple small-diameter drilling core decompression: a retrospective cohort study based on magnetic resonance imaging and equivalent sphere model analysis

 

Preoperative

6 months after the operation

End of follow-up

Stage

 Phase I

5.0 ± 0.8

2.0 ± 0.8**

0.4 ± 0.5**

 Phase II

5.1 ± 0.7

2.8 ± 0.8**

5.1 ± 2.9

Pathogeny

 AFHN

4.8 ± 0.8

1.8 ± 0.8**

0.2 ± 0.4**

 SIFHN

5.25 ± 0.9

3.25 ± 0.9**

7.25 ± 0.9**

 IFHN

5.1 ± 0.7

2.4 ± 0.5**

2.7 ± 2.6*

Total

5.1 ± 0.8

2.4 ± 0.9**

3.1 ± 3.2*

  1. AFHN alcoholic femoral head necrosis, SIFHN steroid-induced femoral head necrosis, IFHN idiopathic femoral head necrosis
  2. *P < 0.05; **P < 0.01
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X