Three-dimensional reconstructed magnetic resonance scans: Accuracy in identifying and defining knee meniscal tears

Table 1 Observer 1’s meniscal tear configuration identification accuracy for all types of tear identified

Observer 1 tear configuration identification accuracy
	Number of each tear correctly identified	Accuracy
Bucket handle	4 of 5	80%
Radial	1 of 6	16.7%
Cleavage	3 of 5	60%
Parrot beak	2 of 5	40%
Complex	1 of 3	33.3%

Table 2 Observer 2’s meniscal tear configuration identification accuracy for all types of tear identified

Observer 2 tear type identification accuracy
	Number of each tear correctly identified	Accuracy
Bucket handle	4 of 5	80%
Radial	3 of 6	50%
Cleavage	0 of 5	0%
Parrot beak	1 of 5	20%
Complex	2 of 3	66.7%

Table 3 The sensitivities for meniscal tear type detection for previous studies utilizing 2D magnetic resonance imaging as compared to the authors’ results using the 3D reconstruction of meniscal tears

	Radial	Bucket-handle	Oblique	Horizontal cleavage	Complex
Jee et al[27]	8 of 11 (72.7%)	-1	3 of 5 (60.0%)	35 of 44 (79.5%)	18 of 22 (81.8%)
Jung et al[28]	26 of 36 (72.2%)	-1	2 of 2 (100.0%)	28 of 32 (87.5%)	1 of 2 (50.0%)
Wright et al[29]	-1	25 of 39 (64.1%)	-1	-1	-1
The present report	1 of 6 (16.7%)	4 of 5 (80.0%)	2 of 5 (40.0%)	3 of 5 (60.0%)	1 of 3 (33.3%)

¹No such tear configuration specified in the study.