Turkish Validity and Reliability of Short Form McGill Pain Questionnaire-2 in Patients with Chronic Cervical Radicular Pain Due to Disc Herniation

Background/Aims: This study aimed to evaluate the reliability and validity of the Turkish edition of the Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2) among chronic cervical radicular pain (CRRP) cases caused by disc herniation. The secondary aim of the study was to evaluate the relationship between Turkish Short-Form McGill Pain Questionnaire-2 (TR-SFMPQ-2) and other pain and disability scales. Materials and Methods: The study was based on data from 103 cases of CRRP patients evaluated at the Algology outpatient clinic. In addition to TR-SF-MPQ-2, the Numerical Rating Scale, Neck Disability Index, Quick Disabilities of the Arm, Shoulder, and Hand, Cervical Radiculopathy Impact Scale, and a 4-question neuropathic pain questionnaire were completed. Cronbach's alpha (α) and intra-class correlation (ICC) tests were performed for reliability analyses. Confirmatory factor and Spearman correlation analysis were applied to assess structural and content validity, respectively. Results: Both the internal (α= 0.921) and test-retest reliability of the TR-SFMPQ-2 were high (all ICC values >0.9 and P < .001) for the total and 4 subgroups (continuous, intermittent, neuropathic, and emotional). The total and subscale scores of the TR-SF-MPQ-2 were in correlation with other scale results (r= 0.404-0.648, P < .001). Confirmatory factor analysis demonstrated that the scale exhibited 4 distinct factors. Conclusion: The TR-SF-MPQ-2 is a valid and reliable scale for Turkish patients suffering from CRRP.