Here is another article: a meta-analysis fusion vs conservative therapy for low back pain...
Int Orthop. 2006 Nov 21; [Epub ahead of print]
Surgical versus non-surgical treatment of chronic low back pain: a meta-analysis
of randomised trials.
Ibrahim T, Tleyjeh IM, Gabbar O.
Department of Orthopaedic Surgery, Leicester General Hospital, Gwendolen Road,
Leicester, LE5 4PW, UK,
[email protected].
We performed a meta-analysis of randomised controlled trials to investigate the
effectiveness of surgical fusion for the treatment of chronic low back pain
compared to non-surgical intervention. Several electronic databases (MEDLINE,
EMBASE, CINAHL and Science Citation Index) were searched from 1966 to 2005. The
meta-analysis comparison was based on the mean difference in Oswestry Disability
Index (ODI) change from baseline to the specified follow-up of patients
undergoing surgical versus non-surgical treatment. Of the 58 articles
identified, three studies were eligible for primary analysis and one study for
sensitivity analysis, with a total of 634 patients. The pooled mean difference
in ODI between the surgical and non-surgical groups was in favour of surgery
(mean difference of ODI: 4.13, 95%CI: -0.82 to 9.08, p = 0.10, I(2) = 44.4%).
Surgical treatment was associated with a 16% pooled rate of early complication
(95%CI: 12-20, I(2) = 0%). Surgical fusion for chronic low back pain favoured a
marginal improvement in the ODI compared to non-surgical intervention. This
difference in ODI was not statistically significant and is of minimal clinical
importance. Surgery was found to be associated with a significant risk of
complications. Therefore, the cumulative evidence at the present time does not
support routine surgical fusion for the treatment of chronic low back pain.