2011
DOI: 10.4061/2011/231926
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Definition of Nonresponse to Analgesic Treatment of Arthritic Pain: An Analytical Literature Review of the Smallest Detectable Difference, the Minimal Detectable Change, and the Minimal Clinically Important Difference on the Pain Visual Analog Scale

Abstract: Our objective was to develop a working definition of nonresponse to analgesic treatment of arthritis, focusing on the measurement of pain on the 0–100 mm pain visual analog scale (VAS). We reviewed the literature to assess the smallest detectable difference (SDD), the minimal detectable change (MDC), and the minimal clinically important difference (MCID). The SDD for improvement reported in three studies of rheumatoid arthritis was 18.6, 19.0, and 20.0. The median MDC was 25.4 for 7 studies of osteoarthritis a… Show more

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Cited by 97 publications
(68 citation statements)
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“…Applying KT decreased this discomfort but seemed not to produce the minimal clinically important improvement in OA patients, and its effect was not much different from that of sham KT application. 16 Similar to the results of this study, the findings of previous studies have shown that KT decreased the discomfort of acute whiplashassociated disorders 21 and rotator cuff tendinitis/ impingement 8 by 10 and 2.2, respectively; however, these changes did not constitute a clinically important difference. The effects of KT on pain at rest could not be clearly characterized because the discomfort at rest in this study and previous studies was not of a high intensity.…”
Section: Discussionsupporting
confidence: 92%
“…Applying KT decreased this discomfort but seemed not to produce the minimal clinically important improvement in OA patients, and its effect was not much different from that of sham KT application. 16 Similar to the results of this study, the findings of previous studies have shown that KT decreased the discomfort of acute whiplashassociated disorders 21 and rotator cuff tendinitis/ impingement 8 by 10 and 2.2, respectively; however, these changes did not constitute a clinically important difference. The effects of KT on pain at rest could not be clearly characterized because the discomfort at rest in this study and previous studies was not of a high intensity.…”
Section: Discussionsupporting
confidence: 92%
“…Determination of clinically relevant changes in pain is contextual and probably depends on the nature and risk of the procedure required to attain a given improvement [10,18]. However, the numeric pain scale is typically associated with an MCID of approximately 2 points [50], and the mean differences observed in pain outcomes in our study were substantially smaller. Small increments (2°-58) of higher knee flexion mean values, likely of no clinical significance, were observed without tourniquet use at all testing intervals (preoperative until 3 months postoperatively).…”
Section: Discussionmentioning
confidence: 39%
“…We used VAS to evaluate pain over time which is a widely accepted method but can be difficult to manage because statistical significant difference is not always the same as clinical significant difference. The minimally clinical important difference when using VAS in pain evaluation may vary with the level of pain [29,30], but several authors suggest that the changes in VAS \18 mm cannot be regarded as a clinical relevant change [20,31,32]. It can also be doubtful to use these limits to changes in VAS on a group level since significant individual variations may not be detected [33].…”
Section: Discussionmentioning
confidence: 99%