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RESEARCH PRODUCT

Validation of the Western Ontario and McMaster Universities Osteoarthritis Index in Patients Having Undergone Ankle Fracture Surgery

Mikko M. UimonenErkki TukiainenVille T. PonkilainenHenrik SandelinArja HäkkinenJussi P. Repo

subject

MalepsychometricsVisual Analog Scalemedicine.medical_treatmentOsteoarthritisFINNISH VERSIONSeverity of Illness Index0302 clinical medicineFracture FixationQUALITY-OF-LIFESurveys and QuestionnairesFracture fixationOrthopedics and Sports MedicineProspective Studies030212 general & internal medicineOntarioPain PostoperativeINSTRUMENTMiddle Aged3. Good healthmedicine.anatomical_structureWOMACConvergent validityRELIABILITYFemaleVAS-FACOEFFICIENTmusculoskeletal diseasesmedicine.medical_specialtyWOMACUniversitiesVisual analogue scalereliability validityAnkle FracturesANALOG SCALE FOOT03 medical and health sciencesOsteoarthritisanklemedicineHumansPatient Reported Outcome MeasuresVALIDITYARTHROPLASTYRASCH ANALYSIS030203 arthritis & rheumatologybusiness.industryFoot and ankle surgeryReproducibility of Results3126 Surgery anesthesiology intensive care radiologymedicine.diseaseArthroplastySurgeryQuality of LifePhysical therapySurgeryLEFSAnklebusinessFollow-Up Studies

description

The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a patient-reported outcome measure (PROM) that is widely used to evaluate the pain, stiffness, and physical function of patients with osteoarthritis of the hip and knee. Although the WOMAC has also been used for patients after foot and ankle surgery, it has not been validated for this purpose. A total of 130 patients with surgically treated ankle fractures completed the WOMAC, Visual Analogue Scale Foot and Ankle (VAS FA), Lower Extremity Functional Scale (LEFS), 15D Health-Related Quality-of-Life Questionnaire (15D), and Visual Analog Scale for General Health (VAS general health) after foot and ankle surgery. The structural validity of the WOMAC was assessed by using Cronbach's a, and convergent validity was tested between the WOMAC and reference outcome measures. Cronbach's a for the index score was 0.98 and 0.95, 0.86, and 0.98 for the Pain, Stiffness, and Physical Function subscales, respectively. The Spearman correlation coefficients were -0.84, -0.74, -0.58, and 0.55 for the VAS-FA, LEFS, 15D, and VAS general health, respectively. The relationships with the VAS-FA, LEFS, 15D, and VAS general health were strong. All relationships were statistically significant (p <.001). The WOMAC provides valid scores for assessing pain, stiffness, and physical function in patients having undergone ankle fracture surgery. (C) 2019 by the American College of Foot and Ankle Surgeons. All rights reserved. Peer reviewed

yearjournalcountryeditionlanguage
2019-11-01The Journal of Foot and Ankle Surgery
https://doi.org/10.1053/j.jfas.2019.01.018