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Table 4 Follow-up results of alignment of the patello-femoral joint and knee function

From: Changes in patellar morphology following surgical correction of recurrent patellar dislocation in children

Indexes

SG

CG

P value*

Mean TTTG, (SD)

11.63 (1.68)

15.26 (1.43)

< 0.001

Mean CA, (SD)

9.55(3.62)

23.26 (2.94)

< 0.001

Mean PTA, (SD)

8.20 (2.23)

14.86 (2.86)

< 0.001

Mean Kujala score, (SD)

89.60 (3.58)

68.65 (3.81)

< 0.001

Apprehension sign, n (%)

 < 1.5 cm

31/35 (89)

3/35 (0)

 

 > 1.5 cm

4/35 (11)

32/35 (91)

 

Crosby and Insall grading system, n (%)

 Excellent

19/35 (54)

0/35 (0)

 

 Good

12/35 (34)

3/35 (9)

 

 Fair

4/35 (12)

20/35 (57)

 

 Poor

0/35 (0)

12/35 (34)

 
  1. SG study group, CG control group, TTTG tibial tuberosity–trochlear groove distance, CA congruence angle, PTA patellar tilt angle
  2. *TTTG, CA, PTA and Kujala score were calculated using student’s t test. The apprehension sign and Crosby and Insall grading system were compared by Pearson’s chi-squared test