Metatarsophalangeal Arthrodesis of the Hallux

Study Overview
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Brief Summary
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The purpose of the study is to describe the rate of bone fusion (radiological consolidation) in the 2 groups (A and B) 4 months after the operation.

Detailed Description
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The main objective of the study is to describe the rate of bone fusion obtained with the different types of osteosynthesis material: dorsal plate, large-diameter compression screw. Patients will be divided into two groups: patient undergoing arthrodesis of the hallux with a large diameter screw (group A) patient undergoing arthrodesis of the hallux by plate (group B) This is a prospective, cross-sectional, open, comparative, non-randomized, non-interventional, monocentric study on two methods of synthesis (large-diameter plate or screw) of hallux metatarsophalangeal arthrodesis. Patients will be managed in accordance with current practice, the choice of surgical strategy (percutaneous / open) being left to the discretion of the investigators.

Official Title
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Metatarsophalangeal Arthrodesis of the Hallux : Observational Study Evaluating the Efficacy and Tolerance of Synthetic Methods Using Dorsal Plate and Large-diameter Screws

Conditions
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Hallux Deformity

Intervention / Treatment
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* Procedure: Arthrodesis of the metatarsophalangeal joint


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient undergoing isolated first ray surgery (M1 only) of hallux valgus, hallux varus or hallux rigidus by percutaneous or conventional approach; Patient who can benefit from first-line arthrodesis using a dorsal plate or large-diameter screw; Patient able to understand information related to the study and complete quality of life questionnaires; Patient accepting study follow-up visits; Patient having been informed and agreeing to participate in the study. Exclusion Criteria: Pregnant or breastfeeding women; Patient undergoing lateral ray surgery; Patient undergoing revision arthrodesis; Patient with a loss of bone substance requiring a graft; Patient suffering from chronic inflammatory disease; Patient treated with long-term immunosuppressive or corticosteroid treatments; Patient under guardianship or curatorship, or under a regime of deprivation of liberty.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Metatarsophalangeal arthrodesis of the hallux with large diameter screws<br>Patient who can benefit from first-line arthrodesis using large-diameter screws | Procedure: Arthrodesis of the metatarsophalangeal joint<br>* Isolated surgery of the first ray of hallux valgus, hallux varus or hallux rigidus by percutaneous or conventional approach<br>|
| Metatarsophalangeal arthrodesis of the hallux by plate<br>Patient who can benefit from a first intention arthrodesis by dorsal plate | Procedure: Arthrodesis of the metatarsophalangeal joint<br>* Isolated surgery of the first ray of hallux valgus, hallux varus or hallux rigidus by percutaneous or conventional approach<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Rate of bone fusion obtained with different types of osteosynthesis material (dorsal plate and large-diameter compressive screw) | Rate of bone fusion (radiological consolidation) in the 2 groups (A and B) 4 months after the operation, obtained with different types of osteosynthesis material: dorsal plate and large-diameter compressive screw | 4 months |