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Acupuncture and dry-needling for low back pain (Review)

Acupuncture and dry-needling for low back pain (Review)

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Analysis 5.1.<br />

Comparison 5 acupuncture versus placebo or sham intervention (Chronic LBP: > 3 months),<br />

Outcome 1 <strong>pain</strong> (<strong>low</strong>er values mean better).<br />

<strong>Review</strong>:<br />

<strong>Acupuncture</strong> <strong>and</strong> <strong>dry</strong>-<strong>needling</strong> <strong>for</strong> <strong>low</strong> <strong>back</strong> <strong>pain</strong><br />

Comparison:<br />

5 acupuncture versus placebo or sham intervention (Chronic LBP: > 3 months)<br />

Outcome:<br />

1 <strong>pain</strong> (<strong>low</strong>er values mean better)<br />

Study or subgroup <strong>Acupuncture</strong> placebo / sham Mean Difference Weight Mean Difference<br />

N Mean(SD) N Mean(SD) IV,R<strong>and</strong>om,95% CI IV,R<strong>and</strong>om,95% CI<br />

1 Immediately after the end of the sessions<br />

Kerr 2003 26 51.3 (22.4) 20 61.7 (30.6) 9.0 % -10.40 [ -26.34, 5.54 ]<br />

Leibing 2002 35 21 (22) 40 32 (22) 22.9 % -11.00 [ -20.98, -1.02 ]<br />

Mendelson 1983 36 30.2 (18) 41 40 (24.3) 25.3 % -9.80 [ -19.28, -0.32 ]<br />

Molsberger 2002 58 26 (21) 58 36 (19) 42.9 % -10.00 [ -17.29, -2.71 ]<br />

Subtotal (95% CI) 155 159 100.0 % -10.21 [ -14.99, -5.44 ]<br />

Heterogeneity: Tau 2 = 0.0; Chi 2 = 0.03, df = 3 (P = 1.00); I 2 =0.0%<br />

Test <strong>for</strong> overall effect: Z = 4.20 (P = 0.000027)<br />

2 Short-term fol<strong>low</strong>-up (up to 3 months after the end of the sessions)<br />

Carlsson (even) 34 52 (24) 16 64 (25) 27.7 % -12.00 [ -26.67, 2.67 ]<br />

Molsberger 2002 47 23 (20) 41 43 (23) 72.3 % -20.00 [ -29.07, -10.93 ]<br />

Subtotal (95% CI) 81 57 100.0 % -17.79 [ -25.50, -10.07 ]<br />

Heterogeneity: Tau 2 = 0.0; Chi 2 = 0.83, df = 1 (P = 0.36); I 2 =0.0%<br />

Test <strong>for</strong> overall effect: Z = 4.52 (P < 0.00001)<br />

3 Intermediate-term fol<strong>low</strong>-up (3 months to 1 year)<br />

Carlsson (even) 23 48 (22) 9 62 (30) 17.4 % -14.00 [ -35.56, 7.56 ]<br />

Leibing 2002 33 31 (18) 31 35 (22) 82.6 % -4.00 [ -13.88, 5.88 ]<br />

Subtotal (95% CI) 56 40 100.0 % -5.74 [ -14.72, 3.25 ]<br />

Heterogeneity: Tau 2 = 0.0; Chi 2 = 0.68, df = 1 (P = 0.41); I 2 =0.0%<br />

Test <strong>for</strong> overall effect: Z = 1.25 (P = 0.21)<br />

4 Long-term fol<strong>low</strong>-up (more than 1 year)<br />

Carlsson (even) 21 42 (24) 6 54 (35) 100.0 % -12.00 [ -41.83, 17.83 ]<br />

Subtotal (95% CI) 21 6 100.0 % -12.00 [ -41.83, 17.83 ]<br />

Heterogeneity: not applicable<br />

Test <strong>for</strong> overall effect: Z = 0.79 (P = 0.43)<br />

-50 -25 0 25 50<br />

favours acupuncture<br />

favours control<br />

<strong>Acupuncture</strong> <strong>and</strong> <strong>dry</strong>-<strong>needling</strong> <strong>for</strong> <strong>low</strong> <strong>back</strong> <strong>pain</strong> (<strong>Review</strong>)<br />

Copyright © 2011 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.<br />

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