Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Satisfaction with appearance
RCT 3-armed trial	209 people In review	Mean cosmetic appearance (assessed on a 7-point scale ranging from 0 [no cosmetic disturbance] to 6 [maximal cosmetic disturbance]) at 1 year 1.9 with distal chevron osteotomy 2.8 with no treatment	Difference adjusted for baseline characteristics: –1.2 for distal chevron osteotomy v no treatment 95% CI –1.8 to –0.6	Effect size not calculated	distal chevron osteotomy