An innovative and cost-advantage cad solution for cubitus varus surgical planning in children

Leonardo Frizziero, Gian Maria Santi, Christian Leon-Cardenas, Giampiero Donnici, Alfredo Liverani, Francesca Napolitano, Paola Papaleo, Curzio Pagliari, Diego Antonioli, Stefano Stallone, Giovanni Luigi Di Gennaro, Giovanni Trisolino, Paola Zarantonello

Research output: Contribution to journalArticlepeer-review


The study of CAD (computer aided design) modeling, design and manufacturing techniques has undergone a rapid growth over the past decades. In medicine, this development mainly concerned the dental and maxillofacial sectors. Significant progress has also been made in orthopedics with pre-operative CAD simulations, printing of bone models and production of patient-specific instruments. However, the traditional procedure that formulates the surgical plan based exclusively on two-dimensional images and interventions performed without the aid of specific instruments for the patient and is currently the most used surgical technique. The production of custom-made tools for the patient, in fact, is often expensive and its use is limited to a few hospitals. The purpose of this study is to show an innovative and cost-effective procedure aimed at prototyping a custom-made surgical guide for address the cubitus varus deformity on a pediatric patient. The cutting guides were obtained through an additive manufacturing process that starts from the 3D digital model of the patient’s bone and allows to design specific models using Creo Parametric. The result is a tool that adheres perfectly to the patient’s bone and guides the surgeon during the osteotomy procedure. The low cost of the methodology described makes it worth noticing by any health institution.

Original languageEnglish
Article number4057
Pages (from-to)1-14
Number of pages14
JournalApplied Sciences (Switzerland)
Issue number9
Publication statusPublished - May 1 2021


  • 3D Printing
  • CAD Modeling
  • Cutting guides
  • Pediatric orthope-dics
  • Preoperative simulation
  • Surgery and diagnostics

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes


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