C Fingleton1, K Smart2, N Moloney3, B M Fullen4, C Doody4. 1. School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland. Electronic address: caitriona.fingleton@ucdconnect.ie. 2. St. Vincent's University Hospital, Dublin, Ireland. 3. Department of Physiotherapy, Faculty of Health Sciences, University of Sydney, Sydney, Australia. 4. School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland.
Abstract
OBJECTIVE: Emerging evidence suggests that pain sensitization plays an important role in pain associated with knee osteoarthritis (OA). This systematic review and meta-analysis examined the evidence for pain sensitization in people with knee OA and the relationship between pain sensitization and symptom severity. METHODS: A search of electronic databases and reference lists was carried out. All full text observational studies published between 2000 and 2014 with the aim of investigating pain sensitization in humans with knee OA using quantitative sensory testing (QST) measures of hyperalgesia and central hyperexcitability were eligible for inclusion. Meta-analysis of data was carried out using a random effects model, which included results comparing knee OA participants to controls, and results comparing high symptom severity to low symptom severity. RESULTS: Fifteen studies were identified following screening and quality appraisal. For the meta-analysis, pressure pain threshold (PPT) and heat pain threshold (HPT) means and standard deviations were pooled using random effects models. The point estimate was large for differences in PPTs between knee OA participants and controls [-0.85; confidence interval (CI): -1.1 to -0.6], and moderate for PPT differences between knee OA participants with high symptom severity vs those with low symptom severity (0.51; CI: -0.73 to -0.30). A small point estimate was found for differences in HPTs between knee OA participants and controls (-0.42; CI: -0.87 to 0.02). CONCLUSION: Evidence from this systematic review and meta-analysis suggests that pain sensitization is present in people with knee OA and may be associated with knee OA symptom severity.
OBJECTIVE: Emerging evidence suggests that pain sensitization plays an important role in pain associated with knee osteoarthritis (OA). This systematic review and meta-analysis examined the evidence for pain sensitization in people with knee OA and the relationship between pain sensitization and symptom severity. METHODS: A search of electronic databases and reference lists was carried out. All full text observational studies published between 2000 and 2014 with the aim of investigating pain sensitization in humans with knee OA using quantitative sensory testing (QST) measures of hyperalgesia and central hyperexcitability were eligible for inclusion. Meta-analysis of data was carried out using a random effects model, which included results comparing knee OA participants to controls, and results comparing high symptom severity to low symptom severity. RESULTS: Fifteen studies were identified following screening and quality appraisal. For the meta-analysis, pressure pain threshold (PPT) and heat pain threshold (HPT) means and standard deviations were pooled using random effects models. The point estimate was large for differences in PPTs between knee OA participants and controls [-0.85; confidence interval (CI): -1.1 to -0.6], and moderate for PPT differences between knee OA participants with high symptom severity vs those with low symptom severity (0.51; CI: -0.73 to -0.30). A small point estimate was found for differences in HPTs between knee OA participants and controls (-0.42; CI: -0.87 to 0.02). CONCLUSION: Evidence from this systematic review and meta-analysis suggests that pain sensitization is present in people with knee OA and may be associated with knee OA symptom severity.
Authors: A J Dave; F Selzer; E Losina; I Usiskin; J E Collins; Y C Lee; P Band; D F Dalury; R Iorio; K Kindsfater; J N Katz Journal: Osteoarthritis Cartilage Date: 2016-12-14 Impact factor: 6.576
Authors: Erin M Macri; Tuhina Neogi; Irina Tolstykh; Rafael Widjajahakim; Cora E Lewis; James C Torner; Michael C Nevitt; Michael Roux; Joshua J Stefanik Journal: Arthritis Care Res (Hoboken) Date: 2020-07-03 Impact factor: 4.794