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The 17 patients initially included could be
reviewed at 1 year with a clinical examination
and radiographic assessment (front, profile and
patellofemoral contour).
Out of these 17 patients, 8 presented with
anterior knee pain (table 2a), of which half
presented with patellofemoral syndrome (4/17).
Out of these 4 patients presenting with
patellofemoral syndrome, 3 presented with
patellofemoral incongruency (arthroscopic
and/or radiographic) (table 2b). The level of
satisfaction at one year was 11/17 (or 64%)
with a significantly higher level in patients with
patellofemoral congruency (10/17 vs 1/17)
(p=0.027).
The mean Knee Society score was 69.91 [45-
83] for the congruent group versus 46.6 [33-
75] for the non-congruent group (table 3).
Fig. 4b: Incongruent patellofemoral pair: radiographic and arthroscopic.
table 2a
table 2b
Anterior pain
Absence of anterior pain
Congruent 12
5
7
Non-congruent 5
3
2
Patellofemoral pain
Absence of patellofemoral pain
Congruent 12
1
11
Non-congruent 5
3
2
table 3
Knee Society score
Satisfaction
Congruent patellae = 12
45; 58; 78; 81; 70; 83; 78;
64; 76; 67; 68; 71
Mean = 69.91
5 “very satisfied”
5 “satisfied”
2 “not very satisfied”
Non-congruent patellae = 5 33; 38; 75; 42; 45
Mean = 46.6
1 “very satisfied”
2 “not very satisfied”
2 “dissatisfied”