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Table 2 The mean differences of Kujala score between pre-operative and post-operative assessments in four time periods for group B

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 40.64 5.83 −34.63 < 0.001٭
Kujala score 3 months postoperatively 45 76.35 3.48
Kujala score preoperatively 45 40.64 5.83 − 37.46 < 0.001٭
Kujala score 6 months postoperatively 45 77.93 3.10
Kujala score preoperatively 45 40.64 5.83 − 44.39 < 0.001٭
Kujala score 1 year postoperatively 45 84.82 3.00
Kujala score preoperatively 45 40.64 5.83 −44.99 < 0.001٭
Kujala score 2 year postoperatively 45 85.822 2.33
  1. *means statistically significant