Lachman's Test

Test Procedure: Patient supine. knee joint is flexed between 10 and 20 degrees , and femur is stabilized with on hand. Examiner uses other hand to attempts to translate tibia anteriorly

Reliability:
Intra-examiner

  • For positive or negative findings: kappa=.51
  • For grading of tibial translation: kappa=.44-.60

Inter-examiner

  • For positive or negative findings: kappa=.19
  • For grading of tibial translation: kappa=.02-.61 (Cooperman et al Phys Ther 70:225 1990)

Validity:

  • Katz et al (Am J Sports Med 14:88 1986) Sens/Spec/+LR/-LR: .82/.97/27.3/.19
  • Kim and Kim (Clin Orthop 317:237 1995): Sens/Spec/+LR/-LR: .90/na/na/na
  • Cooperman et al (Phys Ther 70:225 1990): Sens/Spec/+LR/-LR: .65/.42/1.12/.83
  • Liu et al (JBJS Br 77:586 1995): Sens/Spec/+LR/-LR: .95/NR/NA/NA
  • Rubinstein et al (Am j Sports Med 22:550 1994): Sens/Spec/+LR/-LR: .96/1.0/NA/.04
  • Boeree and Ackroyd (Injury 22:291 1991): Sens/Spec/+LR/-LR: .63/.90/6.3/.41
  • Lee et al (Radiology 166:861 1988): Sens/Spec/+LR/-LR: .78/1.0/NA/.22
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