Format

Send to

Choose Destination
See comment in PubMed Commons below
BMJ. 2004 Dec 18;329(7480):1450-4.

Randomised controlled trial of magnetic bracelets for relieving pain in osteoarthritis of the hip and knee.

Author information

1
College Surgery, Cullompton, Devon EX15 1TG. timharlow@eclipse.co.uk

Abstract

OBJECTIVE:

To determine the effectiveness of commercially available magnetic bracelets for pain control in osteoarthritis of the hip and knee.

DESIGN:

Randomised, placebo controlled trial with three parallel groups.

SETTING:

Five rural general practices.

PARTICIPANTS:

194 men and women aged 45-80 years with osteoarthritis of the hip or knee.

INTERVENTION:

Wearing a standard strength static bipolar magnetic bracelet, a weak magnetic bracelet, or a non-magnetic (dummy) bracelet for 12 weeks.

MAIN OUTCOME MEASURES:

Change in the Western Ontario and McMaster Universities osteoarthritis lower limb pain scale (WOMAC A) after 12 weeks, with the primary comparison between the standard and dummy groups. Secondary outcomes included changes in WOMAC B and C scales and a visual analogue scale for pain.

RESULTS:

Mean pain scores were reduced more in the standard magnet group than in the dummy group (mean difference 1.3 points, 95% confidence interval 0.05 to 2.55). Self reported blinding status did not affect the results. The scores for secondary outcome measures were consistent with the WOMAC A scores.

CONCLUSION:

Pain from osteoarthritis of the hip and knee decreases when wearing magnetic bracelets. It is uncertain whether this response is due to specific or non-specific (placebo) effects.

PMID:
15604181
PMCID:
PMC535975
DOI:
10.1136/bmj.329.7480.1450
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Support Center