Coverage maps demonstrate 3D Chopart joint subluxation in weightbearing CT of progressive collapsing foot deformity

Andrew Behrens; Kevin Dibbern; Matthieu Lalevée; Kepler Alencar Mendes de Carvalho; Francois Lintz; Nacime Salomao Barbachan Mansur; Cesar de Cesar Netto

doi:10.1038/s41598-022-23638-3

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Coverage maps demonstrate 3D Chopart joint subluxation in weightbearing CT of progressive collapsing foot deformity

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Coverage maps demonstrate 3D Chopart joint subluxation in weightbearing CT of progressive collapsing foot deformity

Andrew Behrens, Kevin Dibbern, Matthieu Lalevée, Kepler Alencar Mendes de Carvalho, Francois Lintz, Nacime Salomao Barbachan Mansur and Cesar de Cesar Netto

Scientific reports, Vol.12(1), pp.19367-19367

11/12/2022

DOI: 10.1038/s41598-022-23638-3

PMCID: PMC9653439

PMID: 36371449

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Abstract

A key element of the peritalar subluxation (PTS) seen in progressive collapsing foot deformity (PCFD) occurs through the transverse tarsal joint complex. However, the normal and pathological relations of these joints are not well understood. The objective of this study to compare Chopart articular coverages between PCFD patients and controls using weight-bearing computed tomography (WBCT). In this retrospective case control study, 20 patients with PCFD and 20 matched controls were evaluated. Distance and coverage mapping techniques were used to evaluate the talonavicular and calcaneocuboid interfaces. Principal axes were used to divide the talar head into 6 regions (medial/central/lateral and plantar/dorsal) and the calcaneocuboid interface into 4 regions. Repeated selections were performed to evaluate reliability of joint interface identification. Surface selections had high reliability with an ICC > 0.99. Talar head coverage decreases in plantarmedial and dorsalmedial (− 79%, p = 0.003 and − 77%, p = 0.00004) regions were seen with corresponding increases in plantarlateral and dorsolateral regions (30%, p = 0.0003 and 21%, p = 0.002) in PCFD. Calcaneocuboid coverage decreased in plantar and medial regions (− 12%, p = 0.006 and − 9%, p = 0.037) and increased in the lateral region (13%, p = 0.002). Significant subluxation occurs across the medial regions of the talar head and the plantar medial regions of the calcaneocuboid joint. Coverage and distance mapping provide a baseline for understanding Chopart joint changes in PCFD under full weightbearing conditions.

Bone imaging

Musculoskeletal system

Three-dimensional imaging

Tomography

Details

Title: Subtitle: Coverage maps demonstrate 3D Chopart joint subluxation in weightbearing CT of progressive collapsing foot deformity
Creators: Andrew Behrens - University of Iowa
Kevin Dibbern - 200 Hawkins Drive, Iowa City, IA 52242 USA
Matthieu Lalevée - 200 Hawkins Drive, Iowa City, IA 52242 USA 37 Boulevard Gambetta, 76000 Rouen, France
Kepler Alencar Mendes de Carvalho - 200 Hawkins Drive, Iowa City, IA 52242 USA
Francois Lintz - Clinique de L’Union, Bd Ratalens, 31240 Saint-Jean, France
Nacime Salomao Barbachan Mansur - 200 Hawkins Drive, Iowa City, IA 52242 USA São Paulo, SP Brazil
Cesar de Cesar Netto - 200 Hawkins Drive, Iowa City, IA 52242 USA
Resource Type: Journal article
Publication Details: Scientific reports, Vol.12(1), pp.19367-19367
DOI: 10.1038/s41598-022-23638-3
PMID: 36371449
PMCID: PMC9653439
NLM abbreviation: Sci Rep
eISSN: 2045-2322
Publisher: Nature Publishing Group UK
Language: English
Date published: 11/12/2022
Academic Unit: Orthopedics and Rehabilitation
Record Identifier: 9984315753602771

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