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The use of a custom-made virtual template for corrective surgeries of asymmetric patients: proof of principle and a multi-center end-user survey

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International Journal of Computer Assisted Radiology and Surgery Aims and scope Submit manuscript

Abstract

Aim

To evaluate the utility of an individualized template for corrective surgeries for patients suffering from mandibular asymmetry.

Materials and method

Twenty patients with history of favorable clinical outcome of the correction of their mandibular asymmetry were chosen. CBCTs were taken before and 6 weeks postoperative using NewTom 3G. Each volume is mirrored and registered on the cranial base. Surface models for the mandible and its registered mirror were used to compute a template using deformable fluid registration. Surgery was simulated based of the resulting template. A multi-center survey using “Qualtrics” was conducted to gain clinical feedback of 20 surgeons/orthodontists comparing treatment outcomes.

Results

Twenty-three clinicians participated. More clinicians rated simulated outcome to be “Good,” whereas the actual surgical outcomes were rated as “fair” and “poor.” This was true for regional appraisal for the chin, Rami, and body of the mandible as well as the overall assessment of the outcome of surgeries. The gains of computer-assisted simulation tend to be greater for difficult cases especially for the body of the mandible, then the chin, and then the Ramus correction.

Conclusions

This approach has the potential to optimize and increase the predictability of the outcome of craniofacial corrective surgeries for asymmetric patients.

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Authors and Affiliations

  1. School of Dentistry, The University of Jordan, Amman, 11942, Jordan

    Abeer AlHadidi & Zaid Baqain

  2. Medical Computing Team, Kitware Inc., Carrboro, NC, USA

    Beatriz Paniagua

  3. M & I Lab Floor 17, Guy’s Hospital, The Dental Institute, King’s College London, Tower Wing, London, UK

    Richard Cook

  4. Diagnostic Sciences, School of Dentistry, UNC Chapel Hill, 5405D Koury Oral Health Sciences Building, CB #7450, Chapel Hill, NC, 27599-7450, USA

    Donald Tyndall

  5. School of Dentistry, University of Michigan, 1011 North University Avenue, Ann Arbor, MI, 48109, USA

    Lucia H. Cevidanes

Authors
  1. Abeer AlHadidi
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  2. Beatriz Paniagua
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  3. Richard Cook
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  4. Donald Tyndall
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  5. Zaid Baqain
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  6. Lucia H. Cevidanes
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Correspondence to Abeer AlHadidi.

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Conflict of interest

The authors declare that they have no competing interests.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all observers included in the study.

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AlHadidi, A., Paniagua, B., Cook, R. et al. The use of a custom-made virtual template for corrective surgeries of asymmetric patients: proof of principle and a multi-center end-user survey. Int J CARS 14, 537–544 (2019). https://doi.org/10.1007/s11548-018-1858-8

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  • DOI: https://doi.org/10.1007/s11548-018-1858-8

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