Table 4.

Visual grading of all tendon–muscle structures relating to the four reference axial planes

Visual grading	Upper femoral plane		Lower femoral plane		Upper tibial plane		Lower tibial plane
	n	%	n	%	n	%	n	%
G0	2	0.2	506	84.3	78	16.7	0	0.0
G1	46	5.8	72	12.0	106	22.5	4	0.7
G2	206	25.6	18	3.0	32	6.8	26	4.2
G3	550	68.4	4	0.7	252	53.8	582	95.1
Total	804	100.0	600	100.0	468	100.0	612	100.0

n, total number of observations (two observations for each of the three operators).