Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Improvement in joint angle
Systematic review	28 people, 39 feet corrected by Mitchell's osteotomy Data from 1 RCT	Hallux abductus angle (radiological outcome) mean follow-up of 11 months (range 2–24 months) 15.8° with standard fixation 18.2° with absorbable pin fixation	Mean difference: +2.40° 95% CI –4.81° to +9.61° Validity of the results may be limited; people were used as the unit of randomisation and feet were used as the unit of statistical analysis		Not significant
Systematic review	28 people, 39 feet corrected by Mitchell's osteotomy Data from 1 RCT	Intermetatarsal angle (radiological outcome) mean follow-up of 11 months (range 2–24 months) 9.1° with standard fixation 9.4° with absorbable pin fixation	Mean difference: +0.3° 95% CI –1.77° to +2.37° Validity of the results may be limited; people were used as the unit of randomisation and feet were used as the unit of statistical analysis		Not significant