Minimally Invasive Distal Chevron in Comparison to the Reverdin-Isham Osteotomy for Hallux Valgus Correction

NCT ID: NCT04288297

Last Updated: 2020-03-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-12-01

Study Completion Date

2019-08-31

Brief Summary

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This study analyses the Reverdin Isham procedure, which is the most popular minimally invasive surgical hallux valgus correction method and the minimally invasive chevron osteotomy, representing the standard technique of open surgery. It is hypothesized that the two techniques would show significant differences in regard to radiological outcome (Hypothesis 1), clinical outcome (Hypothesis 2) and development of radiological recurrence (Hypothesis 3).

Detailed Description

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Multiple different surgical techniques have been established for hallux valgus surgery so far, each technique with its unique advantages and limitations. The distal chevron method is widely accepted as a surgical method for correcting mild to moderate hallux valgus deformities. Numerous publications presenting the radiological outcome of this surgical technique and the clinical outcome by means of well established score systems have been published and make this technique, today's benchmark in hallux surgery.

Due to scarring and decreased range of motion of the greater toe joint after open surgery and increasing patients' demands several minimally invasive techniques have been brought to public in the last few years. These techniques claim minor soft tissue damage and reduced surgical time. The efficiency and stability of correction, as well as the clinical outcome of these techniques have been discussed controversially. However, most studies present data from minimally invasive surgery without specific differentiation of the type of surgery and in regard to the clinical and radiological outcome.

Recently a prospective randomized study comparing the open versus the minimally invasive chevron technique has been published presenting data with comparable clinical and radiological outcome.

Given the above-mentioned lack of evidence it was the aim of the study to compare the results of two different minimally invasive techniques. The investigators analyzed the Reverdin Isham procedure, which is known as the technique, that made minimally invasive hallux surgery popular and the minimally invasive chevron osteotomy. It was hypothesized that the two techniques would show significant differences in regard to radiological outcome (Hypothesis 1), clinical outcome (Hypothesis 2) and development of radiological recurrence (Hypothesis 3).

Conditions

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Hallux Valgus and Bunion

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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distal minimally invasive distal chevron

The investigators compare the results of a consecutive cohort of patients treated with the above mentioned technique in comparison to the results of patients treated with the minimally invasive Reverdin-Isham technique, presented in literature

distal minimally invasive chevron osteotomy

Intervention Type PROCEDURE

With an electric motor-driven machine the resection of the medial eminence as well as a V-shaped osteotomy was performed in hallux valgus patients. Intraoperative fluoroscopy was used to identify the ideal osteotomy site and to control the Intervention. Fixation of the metatarsal head was achieved with a screw or with a K wire. Residual bone ridges were reamed and bone debris washed out.

Interventions

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distal minimally invasive chevron osteotomy

With an electric motor-driven machine the resection of the medial eminence as well as a V-shaped osteotomy was performed in hallux valgus patients. Intraoperative fluoroscopy was used to identify the ideal osteotomy site and to control the Intervention. Fixation of the metatarsal head was achieved with a screw or with a K wire. Residual bone ridges were reamed and bone debris washed out.

Intervention Type PROCEDURE

Other Intervention Names

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austin, v-shaped osteotomy, percutaneous hallux valgus correction

Eligibility Criteria

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Inclusion Criteria

* patients after minimally invasive distal Chevron osteotomy for hallux valgus deformity with a Minimum follow up of 24 months
* patients with informed written consent for being analyzed
* patients, of whom radiographs are available from preoperative throughout the follow-up time of 24 months

Exclusion Criteria

* patients under 18 years of age
* pregnant patients, or women below the age of 50 ys, of whom the pregnancy status is not clear
* patients with mental illness or patients, who cannot follow the required postoperative Treatment or controls
* patients, who refuse to participate
* patients, who are assigned to other clinical studies
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Medical University Innsbruck

OTHER

Sponsor Role collaborator

Dr.Gerhard Kaufmann

OTHER

Sponsor Role lead

Responsible Party

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Dr.Gerhard Kaufmann

Dr. Gerhard Kaufmann, Principal investigator and Head of the Orthopaedic and Foot Center Innsbruck

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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Gerhard Kaufmann

Innsbruck, Tyrol, Austria

Site Status

Countries

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Austria

References

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Vopat BG, Lareau CR, Johnson J, Reinert SE, DiGiovanni CW. Comparative study of scarf and extended chevron osteotomies for correction of hallux valgus. Foot Ankle Spec. 2013 Dec;6(6):409-16. doi: 10.1177/1938640013508431. Epub 2013 Oct 23.

Reference Type BACKGROUND
PMID: 24154993 (View on PubMed)

Brogan K, Voller T, Gee C, Borbely T, Palmer S. Third-generation minimally invasive correction of hallux valgus: technique and early outcomes. Int Orthop. 2014 Oct;38(10):2115-21. doi: 10.1007/s00264-014-2500-1. Epub 2014 Aug 17.

Reference Type BACKGROUND
PMID: 25128969 (View on PubMed)

Jowett CRJ, Bedi HS. Preliminary Results and Learning Curve of the Minimally Invasive Chevron Akin Operation for Hallux Valgus. J Foot Ankle Surg. 2017 May-Jun;56(3):445-452. doi: 10.1053/j.jfas.2017.01.002. Epub 2017 Feb 22.

Reference Type BACKGROUND
PMID: 28237566 (View on PubMed)

Lee M, Walsh J, Smith MM, Ling J, Wines A, Lam P. Hallux Valgus Correction Comparing Percutaneous Chevron/Akin (PECA) and Open Scarf/Akin Osteotomies. Foot Ankle Int. 2017 Aug;38(8):838-846. doi: 10.1177/1071100717704941. Epub 2017 May 5.

Reference Type BACKGROUND
PMID: 28476096 (View on PubMed)

Redfern D, Perera AM. Minimally invasive osteotomies. Foot Ankle Clin. 2014 Jun;19(2):181-9. doi: 10.1016/j.fcl.2014.02.002.

Reference Type BACKGROUND
PMID: 24878408 (View on PubMed)

Brogan K, Lindisfarne E, Akehurst H, Farook U, Shrier W, Palmer S. Minimally Invasive and Open Distal Chevron Osteotomy for Mild to Moderate Hallux Valgus. Foot Ankle Int. 2016 Nov;37(11):1197-1204. doi: 10.1177/1071100716656440. Epub 2016 Jul 4.

Reference Type BACKGROUND
PMID: 27381179 (View on PubMed)

Crespo Romero E, Penuela Candel R, Gomez Gomez S, Arias Arias A, Arcas Ordono A, Galvez Gonzalez J, Crespo Romero R. Percutaneous forefoot surgery for treatment of hallux valgus deformity: an intermediate prospective study. Musculoskelet Surg. 2017 Aug;101(2):167-172. doi: 10.1007/s12306-017-0464-1. Epub 2017 Feb 7.

Reference Type BACKGROUND
PMID: 28168637 (View on PubMed)

Maffulli N, Longo UG, Marinozzi A, Denaro V. Hallux valgus: effectiveness and safety of minimally invasive surgery. A systematic review. Br Med Bull. 2011;97:149-67. doi: 10.1093/bmb/ldq027. Epub 2010 Aug 14.

Reference Type BACKGROUND
PMID: 20710024 (View on PubMed)

Other Identifiers

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1062/2018

Identifier Type: -

Identifier Source: org_study_id

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