Conservative Management of Mechanical
Neck Disorders: A Systematic Review

This section is compiled by Frank M. Painter, D.C.
Send all comments or additions to:    Frankp@chiro.org

FROM:   J Rheumatol 2007 (May); 34 (5): 1083–1102

Gross AR, Goldsmith C, Hoving JL, Haines T, Peloso P, Aker P,
Santaguida P, Myers C; Cervical Overview Group

School of Rehabilitation Sciences,
Clinical Epidemiology and Biostatistics, and
Occupational Health and Environmental Medicine,
McMaster University,
Hamilton, Ontario, Canada.
grossa@mcmaster.ca

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OBJECTIVE:   To determine if conservative treatments (manual therapies, physical medicine methods, medication, and patient education) relieved pain or improved function/disability, patient satisfaction, and global perceived effect in adults with acute, subacute, and chronic mechanical neck disorders (MND) by updating 11 systematic reviews of randomized controlled trials (RCT).

METHODS:   Two independent authors selected studies, abstracted data, and assessed methodological quality from computerized databases. We calculated relative risks and standardized mean differences (SMD) when possible. In the absence of heterogeneity, we calculated pooled effect sizes.

RESULTS:   We studied 88 unique RCTs. The mean methodological quality scores were acceptable in 59% of the trials. We noted strong evidence of benefit for maintained pain reduction [pooled SMD -0.85 (95% CI -1.20, -0.50)], improvement in function, and positive global perceived effect favoring exercise plus mobilization/manipulation versus control for subacute/chronic MND. We found moderate evidence of longterm benefit for improved function favoring direct neck strengthening and stretching for chronic MND, and for high global perceived effect favoring vertigo exercises. We noted moderate evidence of no benefit for botulinium-A injection [pooled SMD -0.39 (95% CI -01.25, 0.47)]. We found many treatments demonstrating short-term effects.

CONCLUSION:   Exercise combined with mobilization/manipulation, exercise alone, and intramuscular lidocaine for chronic MND; intravenous glucocorticoid for acute whiplash associated disorders; and low-level laser therapy demonstrated either intermediate or longterm benefits. Optimal dosage of effective techniques and prognostic indicators for responders to care should be explored in future research.

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