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Table 1 The mean differences of Kujala score between pre-operative and post-operative assessments in four time periods for group A

From: Use of hyaluronic acid injection after arthroscopic release in lateral patellar compression syndrome with degenerative cartilage changes: randomized control trial

Study variables

Periods of assessment

N

Mean

SD

Paired t-test

P-value

Kujala score

Kujala score preoperatively

45

40.60

6.03

− 36.57

< 0.001٭

Kujala score 3 months postoperatively

45

83.28

4.61

Kujala score preoperatively

45

40.60

6.03

−42.57

< 0.001٭

Kujala score 6 months postoperatively

45

84.62

3.09

Kujala score preoperatively

45

40.60

6.03

−46.96

< 0.001٭

Kujala score 1 year postoperatively

45

86.08

1.59

Kujala score preoperatively

45

40.60

6.03

− 48.18

< 0.001٭

Kujala score 2 year postoperatively

45

87.11

1.97

  1. *means statistically significant