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Table 3 Overall Results Based on the American Knee Society Scoring System

From: Use of autologous bone marrow stem cell implantation for osteonecrosis of the knee in sickle cell disease: a preliminary report

Parameter

Preoperative

Postoperative

P value

Pain Score

6.7 ± 1.2

3.4 ± 1.0

0.001*

Knee Score (KSS)

 Average Score

64.3 ± 9.6

92.2 ± 4.2

0.001

 Excellent

0

97% (32/33)

 

 Good

24.2% (8/33)

3% (1/33)

 

 Fair

51.6% (17/33)

0

 

 Poor

24.2% (8/33)

0

 

Function score (KSS)

 Average Score

44.5 ± 8.0

91.6 ± 5.7

0.001

 Excellent

0

91% (30/33)

 

 Good

0

9.0% (3/33)

 

 Fair

6% (2/33)

0

 

 Poor

94% (31/33)

0

 
  1. Values are presented as mean ± standard deviation
  2. KSS: Knee Society score
  3. *Wilcoxon signed-rank test. †Paired t-test