Set - Out - English

otelho

402

ssoc

ras

2014; 60(5):400-403

Recommendation

The most appropriate diagnostic test in this situation is

plain radiography, which is more widely available; howe-

ver, MRI is indicated for patients with symptomatic lum-

bar stenosis.

one

substitutes

are

equal

superior

autografts

this

situation

Two randomized trials

23,24

evaluated the association of

bone expander beta-tricalcium phosphate to “local” bone

tissue from the posterior vertebral elements, and compa-

red their achieved results with autologous iliac graft, con-

sidered the gold standard in this clinical scenario. Both

studies reported there were no clinical or radiographic

differences between the groups assessed, and the use of

bone expanders avoided the occurrence of pain in the iliac

donor site (

23,24

Recommendation

The association of local bone graft (from the posterior

vertebral elements) and beta-tricalcium phosphate is a

therapeutic option for the removal of autologous bone

graft from the iliac bone (

hould

the

spondylolisthesis

reduced

In the search for Keywordsand indexed terms, 388 articles

were retrieved; of these, 47 abstracts, and 3 comparative

clinical trials chosen for analysis. A thorough analysis sho-

wed that the three articles were case series with small sam-

ples, and two showed a 60% loss on follow-up and conflic-

ting results (

25-27

Due to the low quality of the articles,

it was not possible to make a recommendation.

there

any

differences

among

the

various

types

arthrodesis

There are no randomized trials comparing the various

methods of arthrodesis focusing on degenerative spondy-

lolisthesis, especially with regard to intersomatic spacers.

We found that lower-quality observational studies using

different techniques for lumbar fusion and heterogeneous

study populations showed a higher fusion rate in patients

undergoing circumferential arthrodesis, but without evi-

dence of better functional results (

28-30

Recommendation

There are no randomized trials comparing the various

methods of arthrodesis and use of intersomatic spacers

in cases of degenerative spondylolisthesis; thus, it is not

possible to recommend a specific technique (

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