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

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...

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Bibliographic Details
Published in:International journal for computer assisted radiology and surgery 2019-08, Vol.14 (8), p.1439-1447
Main Authors: Burssens, Arne, Barg, Alexej, van Ovost, Esther, Van Oevelen, Aline, Leenders, Tim, Peiffer, Matthias, Bodere, Irina, Audenaert, Emmanuel, Victor, Jan
Format: Article
Language:English
Subjects:
Alignment
Biocompatibility
Computation
Computer Imaging
Computer Science
Deformation
Health Informatics
Imaging
Medicine
Medicine & Public Health
Original Article
Pattern Recognition and Graphics
Radiology
Regression analysis
Surgery
Three dimensional models
Tibia
Two dimensional analysis
Vision
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Summary: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 
ISSN:1861-6410
1861-6429
DOI:10.1007/s11548-019-01949-7