Full-Scale 3D Preoperative Planning System for Calcaneal Osteotomy with a Multimedia System

Sun, Shuh-Ping; Chou, Yi-Jiun; Sue, Chun-Chia

doi:10.1053/j.jfas.2009.05.007

Cited by 12 publications

(5 citation statements)

References 16 publications

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“…By taking the advantage of medical imaging, analysis, and computational simulation as a part of computer-assisted technology, measurements of anatomical parameters in threedimensional (3D) space have been implemented to obtain relevant information [13][14][15][16]. It allows calculating the surface, distance, and angle on a bone model that is directly generated from CT or magnetic resonance imaging (MRI).…”

Section: Introductionmentioning

confidence: 99%

A reliable method for morphological measurement of 3D calcaneus models from computed tomography images.

Idram¹,

Lai²,

Lee³

2019

biomedicalresearch

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The way to assess the calcaneal fractures reduction is still open. Anatomical morphology is an important clinical value to maintain normal function and may use as references to evaluate the reduction for calcaneal fractures. The aim of study is to provide reliable and repeatable three-dimensional (3D) morphology measurement. 3D models of ninety-nine Taiwanese normal calcaneus were reconstructed and segmented from CT image. Anatomical landmark serves as measurement constraints that manually identified and localized on bone mesh surface according to Gaussian curvature analysis. Computer assisted measurement and manual measurement were performed to quantify morphological parameters. Statistically, measurement results of calcaneal morphology were analyzed. The correlation between each of morphological parameters was tested using Bivariate-Pearson correlation. Gender differences relate to parameters were also tested. Intraclass correlation coefficient (ICC) and root mean square standard deviation (RMS-SD) were performed for reliable and precision study. Significant parameter differences between males and females were found (p<0.05). Yet, the correlation for each morphology parameters shows a strong correlation. Overall measurements show acceptable reliability and repeatability (ICC>0.754). RMS-SD of precision for linear and angular measurement was adequate, around 0.8 mm and 1.7°. Morphological parameters for both male and female groups, 78.5 mm in length, 42.1 in height, 43.3 mm in width, 112.5° in Gissane angle, 33.4° in Böhler angle, which is not much different compared to Asian morphology population. The proposed method positively contributes to measurement calcaneal morphology with significant reliability and repeatability. This study may offer to be a basic data and reference for assessment calcaneal fracture reduction.

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Section: Introductionmentioning

confidence: 99%

A reliable method for morphological measurement of 3D calcaneus models from computed tomography images.

Idram¹,

Lai²,

Lee³

2019

biomedicalresearch

View full text Add to dashboard Cite

show abstract

“…The body of literature is currently limited with regard to the use 3D modeling in optimizing patients with hindfoot deformities. Chou and Sun introduced 3D software and 3D printed models of calcaneal osteotomies and suggested that this technology may be used for preoperative planning 12,13 . The current study seeks to expand on this concept by defining accurate reference points, limitations, and parameters for optimal lateral closing wedge in calcaneal osteotomies.…”

Section: Discussionmentioning

confidence: 99%

Effects of variations in Dwyer calcaneal osteotomy determined by three‐dimensional printed patient‐specific modeling

Weinheimer

Campbell

Roush

et al. 2020

Journal Orthopaedic Research

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Dwyer (lateral calcaneal closing wedge) osteotomy is commonly used in surgical correction of heel varus deformity. The purpose of this study was to determine the effect of wedge size and angle of osteotomy on deformity correction using preoperative imaging analysis with three‐dimensional (3D) printed modeling. Seven patients diagnosed with pes cavovarus deformity who underwent Dwyer calcaneal osteotomy were identified retrospectively. Preoperative computed tomogrphy scans were used to create 3D printed models of the foot. After18 variations of osteotomy and fixation performed for each foot, Harris heel and Saltzman images were obtained. The angle between the tibia‐talus axis and calcaneal‐tuber axis was measured and compared to pre‐osteotomy state. Change in the calcaneal lengths was also analyzed. The average degree correction of deformity per mm of bone resected was 3.8 ± 0.2 degrees in the Harris Heel view and 2.7 ± 0.8 degrees in the Saltzman view. A significant increase in correction was obtained with 10 mm compared with 5 mm wide wedges (P < .001). The difference in correction was not statistically significant between 30 and 45 degree cuts or osteotomy distance from the posterior calcaneal tuberosity, but a 45 degree sagittal angle resulted in less calcaneal shortening compared to 30 degrees (P = .02). A clinically driven method using patient‐specific 3D models for determining effects of calcaneal osteotomy variables in correcting hindfoot alignment was developed. In summary, the amount of wedge resected impacts hindfoot alignment more than location and sagittal angle of the cut. Calcaneal shortening depends on sagittal angle of the cut.

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“…Preoperative planning methods in orthopedic surgery are part of a more comprehensive computer-assisted surgical navigation system. These methods have been used in various procedures, including osteotomies for calcaneal and acetabular fractures, [13][14][15][16][17] pedicle screw placement in spine surgery, 18 and tunnel placement for knee ligament reconstruction. 19 There have been limited reports on the use of physical models and CT images in preoperative planning for upper extremity surgery; most have been for distal radius malunions.…”

Section: Discussionmentioning

confidence: 99%

Preoperative Computer-Assisted Design Templating of Complex Articular Olecranon Osteotomy: Case Report

Garg

Hammoud²,

Lipman³

et al. 2010

The Journal of Hand Surgery

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Full-Scale 3D Preoperative Planning System for Calcaneal Osteotomy with a Multimedia System

Cited by 12 publications

References 16 publications

A reliable method for morphological measurement of 3D calcaneus models from computed tomography images.

A reliable method for morphological measurement of 3D calcaneus models from computed tomography images.

Effects of variations in Dwyer calcaneal osteotomy determined by three‐dimensional printed patient‐specific modeling

Preoperative Computer-Assisted Design Templating of Complex Articular Olecranon Osteotomy: Case Report

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