Table 2.

Measurements of the MPFL (mm) and correlations with controls, with and without episodes of patellar dislocation

Variable	Groups	Mean	SD	Median	Minimum	Maximum	n	p
Total length	Control	49.04	5.64	48.8	36.1	61.8	87	< 0.001
	Potential instability	53.63	6.97	55.3	43.7	64.6	19
	Objective instability	63.81	7.98	65.5	51.1	76.6	19
Thickness at medial third	Control	1.27	0.44	1.2	0.6	3.3	87	0.101
	Potential instability	1.12	0.37	1.1	0.6	1.8	19
	Objective instability	0.98	0.39	0.9	0.4	2.3	19
Thickness at patellar insertion	Control	1.71	0.59	1.6	0.7	3.2	87	< 0.001
	Potential instability	1.37	0.72	1.2	0.4	3.1	19
	Objective instability	0.90	0.40	0.8	0.4	1.9	19
Thickness at femoral insertion	Control	1.14	0.46	1.1	0.5	3.7	87	0.339
	Potential instability	1.00	0.39	0.9	0.6	2.0	19
	Objective instability	0.91	0.31	0.9	0.6	2.0	19

SD standard deviation