Table 1.

Relationship between the Catterall classification and the lateral pillar classification (number of patients)

Catterall classification	Lateral pillar classification			Total
	group A	group B	group C
Group 1	5	4	0	9
Group 2	3	25	0	28
Group 3	0	74	10	84
Group 4	0	21	70	91
Total	8	124	80	212