Table 3.

Correlations (r value) between patellar mobility and patellofemoral joint cartilage assessment results (International Cartilage Repair Society grade) at the second operation (Spearman’s correlation coefficient).

	Patella	P value	Trochlea	P value
LPD	0.14	0.38	0.04	0.81
MPD	0.21	0.20	0.11	0.51
LPD/HT	0.14	0.45	0.03	0.88
MPD/HT	0.20	0.22	0.10	0.54
LPD - MPD	-0.04	0.96	-0.03	0.91
LPD - MPD/HT	-0.13	0.98	-0.12	0.88

LPD, lateral patellar displacement; MPD, medial patellar displacement; HT, height