Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Improvement in joint angle
RCT	51 people In review	Hallux abductus angle at 38 months 25.7° with distal chevron osteotomy 13.3° with Wilson's osteotomy	Difference: +12.4° 95% CI +7.5° to +17.5°	Effect size not calculated	Wilson's osteotomy
RCT	100 people (94 women, 6 men), 100 feet	Hallux valgus angle (change from baseline) at 1 year from 29° to 15° with Lindgren osteotomy from 30° to 17° with distal chevron osteotomy	P = 0.01	Effect size not calculated	Lindgren osteotomy
RCT	100 people (94 women, 6 men), 100 feet	Hallux valgus angle 3–6 years (mean 4.7 years) 17° with Lindgren osteotomy 21° with distal chevron osteotomy	P = 0.01	Effect size not calculated	Lindgren osteotomy
RCT	100 people (94 women, 6 men), 100 feet	Intermetatarsal angle (change from baseline) at 1 year from 14° to 8° with Lindgren osteotomy from 14° to 10° with distal chevron osteotomy	P = 0.01	Effect size not calculated	Lindgren osteotomy
RCT	100 people (94 women, 6 men), 100 feet	Intermetatarsal angle 3–6 years 8° with Lindgren osteotomy 10° with distal chevron osteotomy	P = 0.04	Effect size not calculated	Lindgren osteotomy
RCT	96 people, 108 feet	Hallux abductus angle (change from baseline) at 2 years from 30.4° to 17.2° with chevron osteotomy from 28.9° to 18.1° with scarf osteotomy	P = 0.13		Not significant
RCT	96 people, 108 feet	Intermetatarsal angle (change from baseline) at 2 years from 13.4° to 10.3° with chevron osteotomy from 12.8° to 9.9° with scarf osteotomy	P = 0.97		Not significant