Intra-Tester and Inter-Tester Reliability of the Lachmeter When Measuring Knee Joint Laxity

Figure 3

Bland–Altman plots of the difference between day 1 and day 2 in ACL patients with the Lachman grip and anterior drawer grip of the dominant and non-dominant leg for Tester 1 and Tester 2, respectively. The central dotted line represents the mean differences between day 1 and day 2, whereas the upper and lower lines represent the upper and lower 95% limits of agreement (mean differences ± 1.96 SD of the differences). L grip, Lachman grip; AD grip, anterior drawer grip. (a) L grip dominant leg. (b) L grip non-dominant leg. (c) AD grip dominant leg. (d) AD grip non-dominant leg.