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The hind- and midfoot alignment computed after a medializing calcaneal osteotomy using a 3D weightbearing CT.

Publication ,  Journal Article
Burssens, A; Barg, A; van Ovost, E; Van Oevelen, A; Leenders, T; Peiffer, M; Bodere, I; Weightbearing CT International Study Group (WBCT ISG), ...
Published in: Int J Comput Assist Radiol Surg
August 2019

PURPOSE: A medializing calcaneal osteotomy (MCO) is a surgical procedure frequently performed to correct an adult acquired flatfoot (AAFD) deformity. However, most studies are limited to a 2D analysis of 3D deformity. Therefore, the aim is to perform a 3D assessment of the hind- and midfoot alignment using a weightbearing CT (WBCT) preoperatively as well as postoperatively. METHODS: Eighteen patients with a mean age of 49.4 years (range 18-67) were prospectively included in a pre-post-study design. A MCO was performed and a WBCT was obtained pre- and postoperative. Images were converted into 3D models to compute linear and angular measurements, respectively, in millimeters (mm) and degrees (°), based on previously reported landmarks of the hind- and midfoot alignment. A regression analysis was performed between the displacement of a MCO and the obtained postoperative correction. RESULTS: The mean 3D hindfoot angle improved significantly preoperative compared to postoperative (p < 0.001). This appeared according to a linear relation with the amount of medial translation in a MCO (R2 = 0.84, p < 0.001). The axes of the tibia showed significant coronal as well as axial changes (p < 0.05). Analysis of the midfoot showed significant changes in the navicular height and rotation as well as the Méary angle (p < 0.05). Additionally, a linear trend between the midfoot measurements and amount of medial translation in a MCO was observed, but not significant (p > 0.05). CONCLUSION: This study demonstrates an effective 3D correction of an AAFD by a MCO according to a linear relationship. The concomitant formula can be used to perform a preoperative planning. The novelty is the comparative 3D weightbearing CT assessment of both the computed hind- and midfoot alignment after a medializing calcaneus osteotomy. This could improve accuracy of the currently performed preoperative planning in clinical practice.

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Published In

Int J Comput Assist Radiol Surg

DOI

EISSN

1861-6429

Publication Date

August 2019

Volume

14

Issue

8

Start / End Page

1439 / 1447

Location

Germany

Related Subject Headings

  • Young Adult
  • Weight-Bearing
  • Tomography, X-Ray Computed
  • Tibia
  • Rotation
  • Research Design
  • Reproducibility of Results
  • Regression Analysis
  • Radiography
  • Prospective Studies
 

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Burssens, A., Barg, A., van Ovost, E., Van Oevelen, A., Leenders, T., Peiffer, M., … Victor, J. (2019). The hind- and midfoot alignment computed after a medializing calcaneal osteotomy using a 3D weightbearing CT. Int J Comput Assist Radiol Surg, 14(8), 1439–1447. https://doi.org/10.1007/s11548-019-01949-7
Burssens, Arne, Alexej Barg, Esther van Ovost, Aline Van Oevelen, Tim Leenders, Matthias Peiffer, Irina Bodere, Irina Weightbearing CT International Study Group (WBCT ISG), Emmanuel Audenaert, and Jan Victor. “The hind- and midfoot alignment computed after a medializing calcaneal osteotomy using a 3D weightbearing CT.Int J Comput Assist Radiol Surg 14, no. 8 (August 2019): 1439–47. https://doi.org/10.1007/s11548-019-01949-7.
Burssens A, Barg A, van Ovost E, Van Oevelen A, Leenders T, Peiffer M, et al. The hind- and midfoot alignment computed after a medializing calcaneal osteotomy using a 3D weightbearing CT. Int J Comput Assist Radiol Surg. 2019 Aug;14(8):1439–47.
Burssens, Arne, et al. “The hind- and midfoot alignment computed after a medializing calcaneal osteotomy using a 3D weightbearing CT.Int J Comput Assist Radiol Surg, vol. 14, no. 8, Aug. 2019, pp. 1439–47. Pubmed, doi:10.1007/s11548-019-01949-7.
Burssens A, Barg A, van Ovost E, Van Oevelen A, Leenders T, Peiffer M, Bodere I, Weightbearing CT International Study Group (WBCT ISG), Audenaert E, Victor J. The hind- and midfoot alignment computed after a medializing calcaneal osteotomy using a 3D weightbearing CT. Int J Comput Assist Radiol Surg. 2019 Aug;14(8):1439–1447.
Journal cover image

Published In

Int J Comput Assist Radiol Surg

DOI

EISSN

1861-6429

Publication Date

August 2019

Volume

14

Issue

8

Start / End Page

1439 / 1447

Location

Germany

Related Subject Headings

  • Young Adult
  • Weight-Bearing
  • Tomography, X-Ray Computed
  • Tibia
  • Rotation
  • Research Design
  • Reproducibility of Results
  • Regression Analysis
  • Radiography
  • Prospective Studies