[Retracted] Anatomic Risk Factors for Osteochondral Fracture of Acute First-Time Patellar Dislocation in Adolescents: A Retrospective Magnetic Resonance Imaging Study

Table 5

The morphologic classification of dysplastic trochlea and patella.

	Group A (n = 65)	Group B (n = 29)	value
Dejour classification			0.597
Type I	32	10
Type II	11	6
Type III	13	7
Type IV	9	6
Wiberg classification			0.319
Type I	9	6
Type II	16	10
Type III	40	13