The effect of a manual therapy knee protocol on osteoarthritic knee pain: a randomised controlled trial

Macquarie Injury Management Group, Department of Health and Chiropractic, Macquarie University, NSW 2109, Australia.
JCCA. Journal of the Canadian Chiropractic Association. Journal de l'Association chiropratique canadienne 01/2009; 52(4):229-42.
Source: PubMed


Knee osteoarthritis is a highly prevalent condition with a significant socioeconomic burden to society. It is known to effect sufferers through pain, loss of function and changes in health related quality of life. Management typically involves pharmacologic and/or exercise based therapy approaches to reduce pain. Previous studies have shown multimodal treatment approaches incorporating manual therapy to be efficacious. The aim of this study is to determine if a manual therapy technique knee protocol can alter the self reported pain experienced by a group of chronic knee osteoarthritis sufferers in a randomised controlled trial.
43 participants with a chronic, non-progressive history of osteoarthritic knee pain, aged between 47 and 70 years were randomly allocated following a screening procedure to an intervention group (n=26; 18 men and 8 women, mean age 56.5 years) or a control group (n=17; 11 men and 6 women, mean age 54.6 years). Participants were matched for present knee pain intensity measured on a visual analogue scale. The intervention consisted of the Macquarie Injury Management Group Knee Protocol whilst the control involved a non-forceful manual contact to the knee followed by interferential therapy set at zero. Participants received three treatments per week for two consecutive weeks with a follow up immediately after the final treatment. Post-treatment Participants completed 11 questions including present knee pain intensity and feedback regarding their response to treatment utilizing a visual analogue scale. Results were analysed using descriptive statistics.
Prior to the intervention, there was no significant differences in age or present knee pain intensity. Following treatment, the intervention group reported a significant decrease in the present pain severity (mean 1.9) when compared to the control group (mean 3.1). Response to treatment questions indicated that compared to the control group, the intervention group felt the intervention had helped them (intervention mean 7.0; control mean 3.4), felt it decreased their knee symptoms such as crepitus (intervention mean 6.0; control mean 3.4) and improved their knee mobility (intervention mean 6.4; control mean 3.4) and their ability to perform general activities (intervention mean 6.5; control mean 3.8). Importantly the MIMG Knee Protocol intervention group reported no adverse reactions during treatment.
A short-term manual therapy knee protocol significantly reduced pain suffered by participants with osteoarthritic knee pain and resulted in improvements in self-reported knee function immediately after the end of the 2 week treatment period.

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    • "Our results, without considering mediating effects, are consistent with cross-sectional studies [7,9,12] of a positive association between knee extension ROM and physical function in TKA (path c in Figure  1). Furthermore, case series [28,29] and small trials [30] are available demonstrating that in patients before and following a TKA, rehabilitation interventions – for example, such as manual therapy and splinting – increased knee ROM and improved physical function. Overall, our large study using longitudinal change scores extends the previous literature to suggest that knee extension ROM is an important correlate of physical function in TKA. "
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    ABSTRACT: Background Knee extensor strength and knee extension range of motion (ROM) are important predictors of physical function in patients with a total knee arthroplasty (TKA). However, the relationship between the two knee measures remains unclear. The purpose of this study was to examine whether changes in knee extensor strength mediate the association between changes in knee extension ROM and self-report physical function. Methods Data from 441 patients with a TKA were collected preoperatively and 6 months postoperatively. Self-report measure of physical function was assessed by the Short Form 36 (SF-36) questionnaire. Knee extensor strength was measured by handheld dynamometry and knee extension ROM by goniometry. A bootstrapped cross product of coefficients approach was used to evaluate mediation effects. Results Mediation analyses, adjusted for clinicodemographic measures, revealed that the association between changes in knee extension ROM and SF-36 physical function was mediated by changes in knee extensor strength. Conclusions In patients with TKA, knee extensor strength mediated the influence of knee extension ROM on physical function. These results suggest that interventions to improve the range of knee extension may be useful in improving knee extensor performance.
    Full-text · Article · Jan 2013 · BMC Musculoskeletal Disorders
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    ABSTRACT: Comment on the publication by Pollard H et al (2008) The effect of a manual therapy knee protocol on osteoarthritic knee pain: A randomised controlled trial. J Can Chiropr Assoc 52:229–242
    No preview · Article · Jan 2009 · Manuelle Medizin
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