From: Nonsurgical management of hallux valgus: findings of a randomised pilot and feasibility trial
Feasibility construct | Outcome measure | Predetermined threshold | Result | Achieved? |
---|---|---|---|---|
Demand | Recruitment rate | 6 participants per month | 2.8 | No |
Conversion rate |  ≥ 75% | 68% | No | |
Acceptability | MOS questionnaire |  ≥ 75% of the intervention group score more than 5/10 for each of questions 1–6 | 28–93% | Partlya |
Adherence | ||||
 Footwear/orthoses | Orthotimer® sensor |  ≥ 75% of participants wear the footwear/orthoses for an average of ≥ 5 h per day | 14% | No |
4-weekly diaries | Â | 57% | No | |
 Exercise | PhysiTrack® app | ≥ 75% of participants complete at least 24/36 (66%) of the exercise sessions | 7% | No |
4-weekly diaries | Â | 43% | No | |
 Adverse events | 4-weekly diaries | < 15% and no serious events | 64% | Partlyb |
 Retention rate | Proportion of participants followed up at 12 weeks | ≥ 80% retention | 82% | Yes |