Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trial

Aims: Treatment of Weber B ankle fractures that are stable on weightbearing radiographs but unstable on concomitant stress tests (classified SER4a) is controversial. Recent studies indicate that these fractures should be treated nonoperatively, but no studies have compared alternative nonoperative o...

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Main Authors: Martin G. Gregersen, Ragnhild T. Justad-Berg, Nicolaj E. Q. Gill, Ola Saatvedt, Lars K. Aas, Marius Molund
Format: Article
Language:English
Published: The British Editorial Society of Bone & Joint Surgery 2023-09-01
Series:Bone & Joint Open
Subjects:
Online Access:https://online.boneandjoint.org.uk/doi/epdf/10.1302/2633-1462.49.BJO-2023-0012.R1
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author Martin G. Gregersen
Ragnhild T. Justad-Berg
Nicolaj E. Q. Gill
Ola Saatvedt
Lars K. Aas
Marius Molund
author_facet Martin G. Gregersen
Ragnhild T. Justad-Berg
Nicolaj E. Q. Gill
Ola Saatvedt
Lars K. Aas
Marius Molund
author_sort Martin G. Gregersen
collection DOAJ
description Aims: Treatment of Weber B ankle fractures that are stable on weightbearing radiographs but unstable on concomitant stress tests (classified SER4a) is controversial. Recent studies indicate that these fractures should be treated nonoperatively, but no studies have compared alternative nonoperative options. This study aims to evaluate patient-reported outcomes and the safety of fracture treatment using functional orthosis versus cast immobilization. Methods: A total of 110 patients with Weber B/SER4a ankle fractures will be randomized (1:1 ratio) to receive six weeks of functional orthosis treatment or cast immobilization with a two-year follow-up. The primary outcome is patient-reported ankle function and symptoms measured by the Manchester-Oxford Foot and Ankle Questionnaire (MOxFQ); secondary outcomes include Olerud-Molander Ankle Score, radiological evaluation of ankle congruence in weightbearing and gravity stress tests, and rates of treatment-related adverse events. The Regional Committee for Medical and Health Research (approval number 277693) has granted ethical approval, and the study is funded by South-Eastern Norway Regional Health Authority (grant number 2023014). Discussion: Randomized controlled trials are needed to evaluate alternative nonoperative treatment options for Weber B/SER4a ankle fractures, as current clinical guidelines are based on biomechanical reasoning. The findings will be shared through publication in peer-reviewed journals and presentations at conferences. Cite this article: Bone Jt Open 2023;4(9):713–719.
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spelling doaj.art-98124605ff5149a48a0d17a80d30f1312023-09-27T14:59:50ZengThe British Editorial Society of Bone & Joint SurgeryBone & Joint Open2633-14622023-09-014971371910.1302/2633-1462.49.BJO-2023-0012.R1Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trialMartin G. Gregersen0https://orcid.org/0000-0001-9941-4518Ragnhild T. Justad-Berg1Nicolaj E. Q. Gill2Ola Saatvedt3https://orcid.org/0009-0009-8638-9195Lars K. Aas4Marius Molund5https://orcid.org/0000-0003-1683-8214Department of Physical Medicine and Rehabilitation, Østfold Hospital Trust, Grålum, NorwayOrthopaedic Department, Møre og Romsdal Hospital Trust, Ålesund Hospital, Alesund, NorwayDepartment of Orthopaedic Surgery, Innlandet Hospital Trust, Gjøvik Hospital, Gjøvik, NorwayDepartment of Orthopaedic Surgery, Innlandet Hospital Trust, Gjøvik Hospital, Gjøvik, NorwayOrthopaedic Department, Møre og Romsdal Hospital Trust, Ålesund Hospital, Alesund, NorwayDepartment of Orthopaedic Surgery, Østfold Hospital Trust, Grålum, NorwayAims: Treatment of Weber B ankle fractures that are stable on weightbearing radiographs but unstable on concomitant stress tests (classified SER4a) is controversial. Recent studies indicate that these fractures should be treated nonoperatively, but no studies have compared alternative nonoperative options. This study aims to evaluate patient-reported outcomes and the safety of fracture treatment using functional orthosis versus cast immobilization. Methods: A total of 110 patients with Weber B/SER4a ankle fractures will be randomized (1:1 ratio) to receive six weeks of functional orthosis treatment or cast immobilization with a two-year follow-up. The primary outcome is patient-reported ankle function and symptoms measured by the Manchester-Oxford Foot and Ankle Questionnaire (MOxFQ); secondary outcomes include Olerud-Molander Ankle Score, radiological evaluation of ankle congruence in weightbearing and gravity stress tests, and rates of treatment-related adverse events. The Regional Committee for Medical and Health Research (approval number 277693) has granted ethical approval, and the study is funded by South-Eastern Norway Regional Health Authority (grant number 2023014). Discussion: Randomized controlled trials are needed to evaluate alternative nonoperative treatment options for Weber B/SER4a ankle fractures, as current clinical guidelines are based on biomechanical reasoning. The findings will be shared through publication in peer-reviewed journals and presentations at conferences. Cite this article: Bone Jt Open 2023;4(9):713–719.https://online.boneandjoint.org.uk/doi/epdf/10.1302/2633-1462.49.BJO-2023-0012.R1ankle fracturedeltoid ligamentnonoperative treatmentweber b ankle fracturescast immobilizationstress testsorthotic devicesanklesankle fracturesradiographymoxfq scorepatient-reported outcomesnonoperative treatment
spellingShingle Martin G. Gregersen
Ragnhild T. Justad-Berg
Nicolaj E. Q. Gill
Ola Saatvedt
Lars K. Aas
Marius Molund
Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trial
Bone & Joint Open
ankle fracture
deltoid ligament
nonoperative treatment
weber b ankle fractures
cast immobilization
stress tests
orthotic devices
ankles
ankle fractures
radiography
moxfq score
patient-reported outcomes
nonoperative treatment
title Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trial
title_full Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trial
title_fullStr Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trial
title_full_unstemmed Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trial
title_short Functional orthosis versus cast immobilization for weightbearing stable Weber B ankle fractures with concomitant unstable gravity stress tests: a protocol for a two-year multicentre randomized controlled noninferiority trial
title_sort functional orthosis versus cast immobilization for weightbearing stable weber b ankle fractures with concomitant unstable gravity stress tests a protocol for a two year multicentre randomized controlled noninferiority trial
topic ankle fracture
deltoid ligament
nonoperative treatment
weber b ankle fractures
cast immobilization
stress tests
orthotic devices
ankles
ankle fractures
radiography
moxfq score
patient-reported outcomes
nonoperative treatment
url https://online.boneandjoint.org.uk/doi/epdf/10.1302/2633-1462.49.BJO-2023-0012.R1
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