The inter-rater reliability of clinical tests that best predict the subclassification of lumbar segmental instability: structural functional and combined instability

摘要

ObjectivesThis study investigated the inter-rater reliability of three structural end range lumbar segmental instability tests with the highest positive likelihood ratio (+ LR) against flexion–extension radiographs, and three functional mid-range clinical tests that predict the success of lumbar stabilisation exercises in patients with recurrent or chronic low-back pain (R/CLBP). The study also investigated the reliability of lumbar segmental instability, subclassification as: functional, structural and combined instability.