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COSMIC Study - Comparing Open Scarf/Akin Osteotomy and Minimally Invasive Chevron/Akin. A Feasibility Study

COSMIC Study - Comparing Open Scarf/Akin Osteotomy and Minimally Invasive Chevron/Akin. A Feasibility Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02915822
Enrollment
43
Registered
2016-09-27
Start date
2017-10-11
Completion date
2023-03-05
Last updated
2025-06-18

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

Conditions

Hallux Valgus

Brief summary

The aim of this study is to assess the feasibility of conducting a study to compare the patient recorded and clinical outcomes for the surgical management of Hallux Valgus correction. A prospective trial will randomise the patients into two groups - Open Scarf/Akin osteotomy and Minimally Invasive Chevron/Akin osteotomy.

Detailed description

This study will assess the feasibility of a prospective trial that would randomise the patients into two groups for surgical correction of Hallux Valgus - Open Scarf/Akin osteotomy and Minimally Invasive Chevron/Akin osteotomy. Patients will complete a validated questionnaire (Manchester Oxford Foot questionnaire) preoperatively and post operatively at 6 months and 1 year. Range of motion of the Great Toe Metatarsal Phalangeal Joint will also be measured by goniometer. This study will assess the ability to recruit and retain patients and thus determine if a study comparing the surgical techniques would be feasible. In addition, for data collected statistical differences of the change in patient reported outcomes, range of motion between the two groups will be calculated with a significance level of p\<0.05. This study will assess if a larger study comparing minimally invasive to open Hallux Valgus correction would be able to be performed

Interventions

PROCEDUREMinimally Invasive Chevron/Akin osteotomy

Minimally invasive technique for hallux valgus correction

PROCEDUREOpen Scarf/Akin osteotomy

Open technique for Hallux Valgus correction

Sponsors

Northumbria Healthcare NHS Foundation Trust
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients over 18 years of age. * Patients with Hallux valgus deformity suitable for treatment by both Open Scarf/Akin and MICA procedures. * Patients with no significant co-morbidities that would increase their risk of procedure. * Patients able to understand and complete questionnaires. * Patients with the capacity to provide informed consent. * Patients who have, in addition to Hallux Valgus Deformity, lesser toe deformities requiring correction distal to the metatarsal phalangeal joint at time of procedure. * Patients without significant other mid foot or hind foot pathology

Exclusion criteria

* Patients under 18 years of age * Patients with severity of Hallux valgus deformity necessitating Open procedure * Patients with significant co-morbidities that would increase the risk of surgery * Patients unable to understand or complete questionnaires. * Patients without the capacity to provide informed consent. * Patients with additional deformity requiring additional procedures proximal to the metatarsal phalangeal joint.

Design outcomes

Primary

MeasureTime frameDescription
Number of patients recruited1 yearThe number of patients able to be recruited and retained in this feasibility study. This will determine if a larger study can go forward.

Secondary

MeasureTime frameDescription
Patient reported outcomes assessed by questionnaire1 yearPatient satisfaction, MOXFQ score recorded by questionnaire preoperatively, at 6 months and at 1 year.
MTPJ range of movement in degrees6 monthsMeasured preoperatively at 6 weeks and 6 months by goniometer
Complications1 year

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026