Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Ability to work
RCT 3-armed trial	209 adults In review	Ability to work (assessed on a visual analogue scale ranging from 0 [total inability to work] to 100 [maximal working ability]) at 1 year 81 with orthoses 83 with no treatment	Difference adjusted for baseline differences: –2 95% CI –9 to +5		Not significant