Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective study
Introduction Although several imaging options are available for diagnosing syndesmotic injury, a fundamental question that guides treatment remains unanswered. Syndesmotic instability is still challenging to diagnose correctly, and syndesmotic disruption and true syndesmotic instability should be di...
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BMJ Publishing Group
2020-09-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/10/9/e037239.full |
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| author | João Carlos Rodrigues Mario Lenza Laercio Alberto Rosemberg Durval do Carmo Santos Barros Mario Ferretti Alexandre Leme Godoy Santos Marcelo Pires Prado José Felipe Marion Alloza Renato Amaral Masagão Adham do Amaral e Castro Marco Kawamura Demange |
| author_facet | João Carlos Rodrigues Mario Lenza Laercio Alberto Rosemberg Durval do Carmo Santos Barros Mario Ferretti Alexandre Leme Godoy Santos Marcelo Pires Prado José Felipe Marion Alloza Renato Amaral Masagão Adham do Amaral e Castro Marco Kawamura Demange |
| author_sort | João Carlos Rodrigues |
| collection | DOAJ |
| description | Introduction Although several imaging options are available for diagnosing syndesmotic injury, a fundamental question that guides treatment remains unanswered. Syndesmotic instability is still challenging to diagnose correctly, and syndesmotic disruption and true syndesmotic instability should be differentiated. Currently, imaging tests quickly diagnose severe syndesmotic instability but have difficulty in diagnosing mild and moderate cases. This study aims to investigate which strategy among an existing CT index test and two new add-on CT index tests with stress manoeuvres more accurately diagnoses syndesmotic instability. The secondary objective is to investigate the participants’ disability outcomes by applying the Foot and Ankle Ability Measure questionnaire.Methods and analyses This study of a diagnostic accuracy test will consecutively select individuals older than 18 years with a clinical diagnosis of a suspected acute syndesmotic injury. Three strategies of the CT index test (one in the neutral position and two with stress) will examine the accuracy using MRI as the reference standard. The external rotation and dorsiflexion of the ankle will guide the stress manoeuvres. A comparison of measurements between the injured syndesmosis and the uninjured contralateral side of the same individual will investigate the syndesmotic instability, by evaluating the rotational and translational relationships between the fibula and tibia. Sensitivity, specificity, area under the receiver operating characteristic curve and likelihood analyses will compare the diagnostic accuracies of the strategies.Ethics and dissemination The Internal Review Board and the Einstein Ethics Committee approved this study (registered number 62100016.5.0000.0071). All participants will receive an oral description of the study’s aim, and the choice to participate will be free and voluntary. Participants will be enrolled after they sign the written informed consent form, including the terms of confidentiality. The results will be presented at national and international conferences and published in peer-reviewed journals and social media.Trial registration number ClinicalTrials.gov Registry (NCT04095598; preresults). |
| format | Article |
| id | doaj-art-4934c6a631e54d1bab61bfea204b4b35 |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2020-09-01 |
| publisher | BMJ Publishing Group |
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| series | BMJ Open |
| spelling | doaj-art-4934c6a631e54d1bab61bfea204b4b352025-01-06T14:25:14ZengBMJ Publishing GroupBMJ Open2044-60552020-09-0110910.1136/bmjopen-2020-037239Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective studyJoão Carlos Rodrigues0Mario Lenza1Laercio Alberto Rosemberg2Durval do Carmo Santos Barros3Mario Ferretti4Alexandre Leme Godoy Santos5Marcelo Pires Prado6José Felipe Marion Alloza7Renato Amaral Masagão8Adham do Amaral e Castro9Marco Kawamura Demange102 Departamento de Radiologia, Universidade de São Paulo, Hospital das Clinicas da Faculdade de Medicina, Instituto de Ortopedia e Traumatologia, São Paulo, Brazil3 Programa Locomotor, Hospital Israelita Albert Einstein, São Paulo, Brazil1 Departamento de Radiologia, Hospital Israelita Albert Einstein, São Paulo, Brazil1 Departamento de Radiologia, Hospital Israelita Albert Einstein, São Paulo, Brazil3 Programa Locomotor, Hospital Israelita Albert Einstein, São Paulo, BrazilPrograma Locomotor, Hospital Israelita Albert Einstein, Sao Paulo, BrazilPrograma Locomotor, Hospital Israelita Albert Einstein, Sao Paulo, BrazilPrograma Locomotor, Hospital Israelita Albert Einstein, Sao Paulo, BrazilPrograma Locomotor, Hospital Israelita Albert Einstein, Sao Paulo, BrazilRadiologia, Hospital Israelita Albert Einstein, Sao Paulo, BrazilPrograma Locomotor, Hospital Israelita Albert Einstein, Sao Paulo, BrazilIntroduction Although several imaging options are available for diagnosing syndesmotic injury, a fundamental question that guides treatment remains unanswered. Syndesmotic instability is still challenging to diagnose correctly, and syndesmotic disruption and true syndesmotic instability should be differentiated. Currently, imaging tests quickly diagnose severe syndesmotic instability but have difficulty in diagnosing mild and moderate cases. This study aims to investigate which strategy among an existing CT index test and two new add-on CT index tests with stress manoeuvres more accurately diagnoses syndesmotic instability. The secondary objective is to investigate the participants’ disability outcomes by applying the Foot and Ankle Ability Measure questionnaire.Methods and analyses This study of a diagnostic accuracy test will consecutively select individuals older than 18 years with a clinical diagnosis of a suspected acute syndesmotic injury. Three strategies of the CT index test (one in the neutral position and two with stress) will examine the accuracy using MRI as the reference standard. The external rotation and dorsiflexion of the ankle will guide the stress manoeuvres. A comparison of measurements between the injured syndesmosis and the uninjured contralateral side of the same individual will investigate the syndesmotic instability, by evaluating the rotational and translational relationships between the fibula and tibia. Sensitivity, specificity, area under the receiver operating characteristic curve and likelihood analyses will compare the diagnostic accuracies of the strategies.Ethics and dissemination The Internal Review Board and the Einstein Ethics Committee approved this study (registered number 62100016.5.0000.0071). All participants will receive an oral description of the study’s aim, and the choice to participate will be free and voluntary. Participants will be enrolled after they sign the written informed consent form, including the terms of confidentiality. The results will be presented at national and international conferences and published in peer-reviewed journals and social media.Trial registration number ClinicalTrials.gov Registry (NCT04095598; preresults).https://bmjopen.bmj.com/content/10/9/e037239.full |
| spellingShingle | João Carlos Rodrigues Mario Lenza Laercio Alberto Rosemberg Durval do Carmo Santos Barros Mario Ferretti Alexandre Leme Godoy Santos Marcelo Pires Prado José Felipe Marion Alloza Renato Amaral Masagão Adham do Amaral e Castro Marco Kawamura Demange Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective study BMJ Open |
| title | Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective study |
| title_full | Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective study |
| title_fullStr | Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective study |
| title_full_unstemmed | Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective study |
| title_short | Comparative CT with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain: a protocol for an accuracy- test prospective study |
| title_sort | comparative ct with stress manoeuvres for diagnosing distal isolated tibiofibular syndesmotic injury in acute ankle sprain a protocol for an accuracy test prospective study |
| url | https://bmjopen.bmj.com/content/10/9/e037239.full |
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