Clinical and Radiographic Indices as Correlates and Predictors of Self-Reported Physical Functions in Patients with Chronic Knee Osteoarthritis
Rehabilitation Science
Volume 1, Issue 1, November 2016, Pages: 9-15
Received: Sep. 20, 2016; Accepted: Oct. 2, 2016; Published: Oct. 27, 2016
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Onigbinde Ayodele Teslim, Department of Medical Rehabilitation, Faculty of Basic Medical Sciences, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria
Olaoye Ayoola Olumide, Department of Medical Rehabilitation, Faculty of Basic Medical Sciences, College of Health Sciences, Obafemi Awolowo University, Ile-Ife, Nigeria
Lasisi Kamil, Department of Physiotherapy, Ladoke Akintola University Teaching Hospital, Osogbo, Nigeria
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It is unknown if there would be relationship between symptoms, radiographic changes and self-reported physical functions among patients with knee osteoarthritis (OA). The primary aims were to determine if there would be correlation between symptomatic and radiographic indices of knee OA, and physical function; and also determine if the indices are significant predictors of functional ability. 53 patients who had grade III knee OA participated in the study. The major test instruments were plain X-ray films and Western Ontario and Mcmaster University – WOMAC Osteoarthritis index Questionnaire. The Joint Space Width (JSW), inter-condylar thickening (ICT), tibia width (TW) and other measurements were measured using standard procedures. Descriptive statistics, Pearson’s product moment correlation, ANOVA and step-wise multiple regression analysis were used to summarize the data. Alpha level was set at p = 0.05. The mean WOMAC score was 33.78 ± 9.71. The duration of onset was 10.39 ± 7.14 months. Active knee flexion range of motion (AKFROM) was 102.71 (15.21) degrees while the medial and lateral JSW; ICT and TW were 0.51 ± 0.12cm, 0.74 ± 0.15cm, 1.09 ± 0.35cm and 7.01 ± 1.11cm respectively. There were significant correlations between WOMAC score; and AKFROM, PIA and passive KF (r = -0.37, p = 0.06; r = -0.32, p = 0.02; r = - 0.57, p = 0.001 respectively). There were also significant correlations between WOMAC score and lateral JSW (r = -0.31, p = 0.02), and TW (r = 0.37, p = 0.007) on plain radiograph. The result of the multiple regression analysis showed that the most significant predictor of functional capability was active knee flexion range of motion (F = 23.92, p = 0.001), contributing 31.9% to the prediction. It was concluded that pain intensities, active knee flexion range of motion, pain intensity, inter-condylar thickening, joint space and tibia widths were correlates of physical functions. Active Knee Flexion Range of Motion was the most significant predictor of self-reported functional capability of patients with knee OA.
Knee Osteoarthritis, Physical Functions, Pain Intensity, Range of Motion, Radiographic Parameters
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Onigbinde Ayodele Teslim, Olaoye Ayoola Olumide, Lasisi Kamil, Clinical and Radiographic Indices as Correlates and Predictors of Self-Reported Physical Functions in Patients with Chronic Knee Osteoarthritis, Rehabilitation Science. Vol. 1, No. 1, 2016, pp. 9-15. doi: 10.11648/
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