One article on PainSci cites Jevsevar 2015: Should You Get A Lube Job for Your Arthritic Knee?
original abstract †Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
BACKGROUND: The purpose of this analysis was to determine the clinical significance of injectable hyaluronic acid (HA) in the treatment of knee osteoarthritis, and to assess which trial-level factors influence the overall treatment effect of HA on pain (as measured by a VAS [visual analog scale] or the WOMAC [Western Ontario and McMaster Universities Osteoarthritis Index]) and the WOMAC function and WOMAC stiffness subscales.
METHODS: A comprehensive literature search of PubMed, EMBASE, the Physiotherapy Evidence Database, and the Cochrane Central Register of Controlled Trials was done to locate randomized controlled trials that compared HA with control treatment and had a minimum of thirty patients per subgroup. To be considered for inclusion, each article had to include VAS or WOMAC pain, WOMAC function, and/or WOMAC stiffness as outcomes because the minimal important difference (MID) has been established for these instruments. A "best-evidence" systematic review and meta-analysis of nineteen trials was performed; because of high heterogeneity among the trials, meta-regression analyses were conducted to determine the influence of trial characteristics on overall HA treatment effects for pain, function, and stiffness.
RESULTS: The most consistent finding was that double-blinded, sham-controlled trials had much smaller treatment effects than trials that were not sufficiently blinded (p < 0.05). For double-blinded trials, the overall treatment effect was less than half of the MID for pain, function, and stiffness. Other significant associations were found for cross-linked HAs and follow-up duration. However, the effect sizes among double-blinded trials of cross-linked HAs were still less than half of the MIDs for pain and stiffness. The statistically significant effect of follow-up duration disappeared when the open-label trials were removed from the analysis.
CONCLUSIONS: Meta-analysis of only the double-blinded, sham-controlled trials with at least sixty patients did not show clinically important differences of HA treatment over placebo. When all literature was added to the analysis, the overall effect was greater but was biased toward stronger treatment effects because of the influence of nonblinded or improperly blinded trials.
- “Viscosupplementation for Osteoarthritis of the Knee: A Systematic Review and Meta-analysis,” Anne W S Rutjes, Peter Jüni, Bruno R da Costa, Sven Trelle, Eveline Nüesch, and Stephan Reichenbach, Annals of Internal Medicine, 2012.
- “Intra-articular hyaluronic acid in treatment of knee osteoarthritis: a meta-analysis,” Grace H Lo, Michael LaValley, Timothy McAlindon, and David T Felson, Journal of the American Medical Association, 2003.
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
- No long-term effects after a three-week open-label placebo treatment for chronic low back pain: a three-year follow-up of a randomized controlled trial. Kleine-Borgmann 2022 Pain.
- Exercise and education versus saline injections for knee osteoarthritis: a randomised controlled equivalence trial. Bandak 2022 Ann Rheum Dis.
- Association of Lumbar MRI Findings with Current and Future Back Pain in a Population-based Cohort Study. Kasch 2022 Spine (Phila Pa 1976).
- A double-blinded randomised controlled study of the value of sequential intravenous and oral magnesium therapy in patients with chronic low back pain with a neuropathic component. Yousef 2013 Anaesthesia.
- Is Neck Posture Subgroup in Late Adolescence a Risk Factor for Persistent Neck Pain in Young Adults? A Prospective Study. Richards 2021 Phys Ther.