Japanese Clinical Physical Therapists With the Mechanical Diagnosis and Therapy License Are More Competent and Confident in Pain Management Than Those Without It: A Cross-Sectional Study.

Abstract

Background The McKenzie Method of Mechanical Diagnosis and Therapy (MDT) has long been misunderstood as a biomedical approach. In fact, it is a biopsychosocial approach with an up-to-date evidence-based educational curriculum. Recently, it has become possible to partially measure competence in clinical decision-making based on contemporary pain understanding and confidence in pain management using the Pain Understanding and Confidence Questionnaire (PUnCQ). The primary aim of this study was to compare the following outcomes between physical therapists with and without credential license in MDT (Cred.MDT) and the PUnCQ as well as attitudes toward the biopsychosocial perspective, adherence to evidence-based management for low back pain (LBP), and knowledge of modern pain science. The secondary aim was to explore relevant factors in the PUnCQ. Methodology Clinical physical therapists who were managing patients with pain were recruited from two associations (the Japanese Society of Allied Health and Rehabilitationand the Japan Branch of the International McKenzie Institute, who had all acquired at least the Cred.MDT). The following outcomes were measured: (1) the PUnCQ-1 for partial competence in evidence-based clinical decision-making for pain management; (2) part 2 scores of the PUnCQ for confidence in pain management; (3) the Pain Attitudes and Beliefs Scale for Physical Therapists (PABS-PT) biopsychosocial/biomedical ratio for treatment perspectives; (4) the Knowledge and Attitudes of Pain (KNAP) for knowledge of modern pain science; and (5) a questionnaire for adherence to LBP practice guidelines. Two group comparisons were conducted for the primary aim and a multiple regression analysis for the independent variable of the PUnCQ-1 was conducted for the secondary aim. Results Data from 122 physical therapists (63 and 59 participants with and without the Cred.MDT, respectively) were analyzed. Statistically significantly higher scores were detected for physical therapists with Cred.MDT compared to those without (all p<0.05) for all of the above outcomes. The multiple regression analysis demonstrated that statistically significant contributors to the PUnCQ-1 were part 2 scores of the PUnCQ for the pain management factor (p = 0.016) and acquisition of the Cred.MDT (p = 0.038) (R2 = 0.12). Conclusion Competence and confidence in pain management, attitudes toward biopsychosocial approaches, knowledge of modern pain science and guideline adherence are higher in physical therapists with the Cred.MDT than those without it. Confidence in pain management and acquisition of the Cred.MDT contributed to competence in evidence-based clinical decision-making for pain management.