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Table 5 KOOS score before treatment, after treatment with % difference from baseline in both groups

From: Does arthroscopic patellar denervation with high tibial osteotomy improve anterior knee pain?

Study group KOOS score pre-op KOOS score post-op KOOS % increase P value for time effect
Mean SD Mean SD Mean SD
Group A 42.73 9.22 72.38 7.11 74.97 32.56 < 0.001
Group B 39.22 8.85 56.84 7.78 49.37 25.46 < 0.001
SD both 9.09 (MCID)   
Pvalue between groups 1.0 < 0.001 0.078