Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Ability to work
RCT 3-armed trial	209 people 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 89 with distal chevron osteotomy 83 with no treatment	Difference adjusted for baseline characteristics: +6 for distal chevron osteotomy v no treatment 95% CI –3 to +11		Not significant