Applying 3-Dimensional Printing and Modeling for Preoperative Reconstruction and Instrumentation Placement Planning in Complex Deformity Surgery

Oper Neurosurg (Hagerstown). 2022 Dec 1;23(6):514-522. doi: 10.1227/ons.0000000000000409. Epub 2022 Sep 26.

Abstract

Background: Advances in three-dimensional (3D) printing technology have enabled the development of customized instrumentation and surgical training platforms. However, no existing studies have assessed how patient-specific 3D-printed spine models can facilitate patient education and operative planning in complex spinal deformity correction.

Objective: To present a cost-effective technique for constructing personalized 3D-printed spine models for patients with severe spinal deformities and to outline how these models can promote informed consent, trainee education, and planning for instrumentation placement and alignment correction.

Methods: We present 2 patients who underwent surgical correction of progressive thoracolumbar deformities. Full-scale 3D-printed models of each patient's spine were produced preoperatively and used during clinic evaluations, surgical planning, and as intraoperative references.

Results: Each model took 9 days to build and required less than 60 US dollars of material costs. Both patients were treated with a posterior approach and contiguous multilevel osteotomies. Postoperatively, their alignment parameters and neurological deficits improved.

Conclusion: Personalized 3D-printed spine models can aid in patient education, surgical training, visualization, and correction of complex spinal deformities.

MeSH terms

  • Humans
  • Osteotomy / methods
  • Printing, Three-Dimensional*
  • Spinal Fusion* / methods
  • Spine