(based on overall LoE, considering balance of clinical practice information and evidence)
and >80%
follow-up
(based on two or more studies or a single large, well-designed study)
(or extrapolation from one procedure-specific
LoE 1 study)
case study; (e.g. some adverse effects evidence)
*Allocation concealment: A, adequate; B, unclear; C, inadequate; D, not use
Last update search conducted: 2008–2015 Search in Medline and Embase using Embase as search engine
Inclusion criteria 1 not fulfilled: chronic pain trial or not a pain study
Inclusion criteria 2 not fulfilled: surgical technique
Inclusion criteria 3 not fulfilled: randomisation
Incusion criteria 4 not fulfilled: other
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