Long-term outcomes of keyhole bunion surgery (Minimally Invasive Chevron Akin)

Patient-reported and radiological outcomes of 333 feet following hallux valgus correction using minimally invasive chevron and akin osteotomy after 5 years postoperatively and beyond

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ISRCTN

Registry ID

ISRCTN43431378

Enrollment

230

Registered

2023-10-13

Start date

2023-08-01

Completion date

Unknown

Last updated

2024-07-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hallux valgus (bunions) Musculoskeletal Diseases Hallux valgus (acquired)

Interventions

Minimally invasive surgery for hallux valgus (bunions) using the minimally invasive chevron akin (MICA) technique

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Adult >16 years 2. Primary hallux valgus operation

Exclusion criteria

Exclusion criteria: Unable to attend for radiographs

Design outcomes

Primary

Measure	Time frame
1. How foot problems impair health-related quality of life, assessed using the Manchester-Oxford Foot Questionnaire (MOXFQ) 2. Health state for mobility, self-care, usual activities, pain/discomfort and anxiety/depression, assessed using the EuroQol-5 Dimensions-5 Level (EQ-5D-5L) Index 3. Global assessment of health assessed using the EuroQol-visual analogue scale (EQ-VAS) 4. Pain intensity measured using Visual Analogue Score (VAS)for pain (VAS-pain) Patient-reported outcomes measures will be collected using questionnaires at pre-op, 2 years and 5 yearly	—

Measure

Time frame

1. How foot problems impair health-related quality of life, assessed using the Manchester-Oxford Foot Questionnaire (MOXFQ) 2. Health state for mobility, self-care, usual activities, pain/discomfort and anxiety/depression, assessed using the EuroQol-5 Dimensions-5 Level (EQ-5D-5L) Index 3. Global assessment of health assessed using the EuroQol-visual analogue scale (EQ-VAS) 4. Pain intensity measured using Visual Analogue Score (VAS)for pain (VAS-pain) Patient-reported outcomes measures will be collected using questionnaires at pre-op, 2 years and 5 yearly

—

Secondary

Measure	Time frame
Radiographic measures of the pre-operative deformity and the post-operative correction and its endurance over time will be measured on standing foot X-rays using digital integrated measurement software at pre-op, 6 weeks and 5 yearly. These will include the distal and proximal intermetatarsal angle (degrees), hallux valgus angle (degrees), sesamoid position (grades 0-3), round sing (presence or absence) and percentage of metatarsal head translation (percentage).	—

Measure

Time frame

Radiographic measures of the pre-operative deformity and the post-operative correction and its endurance over time will be measured on standing foot X-rays using digital integrated measurement software at pre-op, 6 weeks and 5 yearly. These will include the distal and proximal intermetatarsal angle (degrees), hallux valgus angle (degrees), sesamoid position (grades 0-3), round sing (presence or absence) and percentage of metatarsal head translation (percentage).

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Countries

England, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026