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Correlation between indirect radiographic parameters of first metatarsal rotation in hallux valgus and values on weight-bearing computed tomography.

Publication ,  Journal Article
Mansur, NSB; Lalevee, M; Schmidt, E; Dibbern, K; Wagner, P; Wagner, E; de Souza Nery, CA; de Cesar Netto, C
Published in: Int Orthop
December 2021

PURPOSE: To verify if indirect radiographic signs of first metatarsal pronation, determined by the head round sign, correspond to weight-bearing computed tomography (WBCT) measurements. METHODS: In this case-control retrospective study, we analyzed 26 hallux valgus (HV) feet and 20 controls through conventional radiograph (CR) and WBCT images. Two blinded orthopaedic foot and ankle surgeons performed the measurements. Pronation classification (head roundness), head diameter (HD), traditional HV angles, arthritis, sesamoid positioning, and first metatarsal rotation angle (MRA) (alpha angle) were evaluated. Comparisons were performed by Student's T-test and a multivariate regression was executed. P-values less than 0.05 were considered significant. RESULTS: Mean values were higher in HV patients than controls when evaluating MRA (11.51 [9.42-13.60] to 4.23 [1.84-6.62], 95%CI), HD (22.35 [21.52-23.18] to 21.01 [20.07-21.96]), and sesamoid rotation angle (SRA) (26.72 [24.09-29.34] to 4.56 [1.63-7.50]). The MRA had a low influence in head roundness classification (R2: 0.15). Changes in the pronation classification were explained chiefly by the sesamoid station (SS) (R2: 0.37), where stations 4 to 7 were found to be strong predictors of roundness classifications 2 and 3. CONCLUSION: Indirect signs of metatarsal pronation, determined by the head round sign, correlate weakly with the alpha angle measured in WBCT. The presence of arthritis and sesamoids displacement might modify the perception of first head roundness. The influence of MRA in the classification was low, where SS from 4 to 7 was strong predictors of a higher pronation classification.

Duke Scholars

Published In

Int Orthop

DOI

EISSN

1432-5195

Publication Date

December 2021

Volume

45

Issue

12

Start / End Page

3111 / 3118

Location

Germany

Related Subject Headings

  • Weight-Bearing
  • Tomography, X-Ray Computed
  • Rotation
  • Retrospective Studies
  • Orthopedics
  • Metatarsal Bones
  • Humans
  • Hallux Valgus
  • Hallux
  • 3202 Clinical sciences
 

Citation

APA
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ICMJE
MLA
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Mansur, N. S. B., Lalevee, M., Schmidt, E., Dibbern, K., Wagner, P., Wagner, E., … de Cesar Netto, C. (2021). Correlation between indirect radiographic parameters of first metatarsal rotation in hallux valgus and values on weight-bearing computed tomography. Int Orthop, 45(12), 3111–3118. https://doi.org/10.1007/s00264-021-05136-9
Mansur, Nacime Salomão Barbachan, Matthieu Lalevee, Eli Schmidt, Kevin Dibbern, Pablo Wagner, Emilio Wagner, Caio Augusto de Souza Nery, and Cesar de Cesar Netto. “Correlation between indirect radiographic parameters of first metatarsal rotation in hallux valgus and values on weight-bearing computed tomography.Int Orthop 45, no. 12 (December 2021): 3111–18. https://doi.org/10.1007/s00264-021-05136-9.
Mansur NSB, Lalevee M, Schmidt E, Dibbern K, Wagner P, Wagner E, et al. Correlation between indirect radiographic parameters of first metatarsal rotation in hallux valgus and values on weight-bearing computed tomography. Int Orthop. 2021 Dec;45(12):3111–8.
Mansur, Nacime Salomão Barbachan, et al. “Correlation between indirect radiographic parameters of first metatarsal rotation in hallux valgus and values on weight-bearing computed tomography.Int Orthop, vol. 45, no. 12, Dec. 2021, pp. 3111–18. Pubmed, doi:10.1007/s00264-021-05136-9.
Mansur NSB, Lalevee M, Schmidt E, Dibbern K, Wagner P, Wagner E, de Souza Nery CA, de Cesar Netto C. Correlation between indirect radiographic parameters of first metatarsal rotation in hallux valgus and values on weight-bearing computed tomography. Int Orthop. 2021 Dec;45(12):3111–3118.
Journal cover image

Published In

Int Orthop

DOI

EISSN

1432-5195

Publication Date

December 2021

Volume

45

Issue

12

Start / End Page

3111 / 3118

Location

Germany

Related Subject Headings

  • Weight-Bearing
  • Tomography, X-Ray Computed
  • Rotation
  • Retrospective Studies
  • Orthopedics
  • Metatarsal Bones
  • Humans
  • Hallux Valgus
  • Hallux
  • 3202 Clinical sciences