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Table 3 Clinical evaluation of the HSS score and progression of patellofemoral articular cartilage lesions, as measured by the ICRS grade

From: The effect of distal tibial tuberosity high tibial osteotomy on postoperative patellar height and patellofemoral joint degeneration

   Value p value
ICRS grade in the femoral trochlea (0/1/2/3)
 1st look 3/11/9/6   
 2nd look 1/12/8/8 χ2 = 2.766 0.449
ICRS grade in the patella (0/1/2/3)
 1st look 2/15/7/5   
 2nd look 1/15/8/5 χ2 = 1.495 0.318
HSS score
 Preoperatively 50.64 ± 19.18   
 3 months postoperatively 67.33 ± 14.72   
 12 months postoperatively 81.63 ± 11.92   
 Last follow-up 82.73 ± 8.05 F = 221.742 < 0.001