The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomies

Abstract Background The extended trochanteric osteotomy (ETO) is a surgical technique utilized to expose the intramedullary canal of the proximal femur, protect the soft tissues and promote reliable healing. However, imprecise execution of the osteotomy can lead to fracture, soft tissue injury, non-...

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Main Authors: Reza Bergemann, Gregory R. Roytman, Lidia Ani, Alim F. Ramji, Michael P. Leslie, Steven M. Tommasini, Daniel H. Wiznia
Format: Article
Language:English
Published: BMC 2024-03-01
Series:3D Printing in Medicine
Subjects:
Online Access:https://doi.org/10.1186/s41205-024-00204-3
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author Reza Bergemann
Gregory R. Roytman
Lidia Ani
Alim F. Ramji
Michael P. Leslie
Steven M. Tommasini
Daniel H. Wiznia
author_facet Reza Bergemann
Gregory R. Roytman
Lidia Ani
Alim F. Ramji
Michael P. Leslie
Steven M. Tommasini
Daniel H. Wiznia
author_sort Reza Bergemann
collection DOAJ
description Abstract Background The extended trochanteric osteotomy (ETO) is a surgical technique utilized to expose the intramedullary canal of the proximal femur, protect the soft tissues and promote reliable healing. However, imprecise execution of the osteotomy can lead to fracture, soft tissue injury, non-union, and unnecessary morbidity. We developed a technique to create patient specific, 3D-printed cutting guides to aid in accurate positioning of the ETO and improve osteotomy quality and outcomes. Methods Patient specific cutting guides were created based on CT scans using Synopysis Simpleware ScanIP and Solidworks. Custom 3D printed cutting guides were tested on synthetic femurs with foam cortical shells and on cadaveric femurs. To confirm accuracy of the osteotomies, dimensions of the performed osteotomies were compared to the virtually planned osteotomies. Results Use of the patient specific ETO cutting guides resulted in successful osteotomies, exposing the femoral canal and the femoral stem both in synthetic sawbone and cadaveric testing. In cadaveric testing, the guides allowed for osteotomies without fracture and cuts made using the guide were accurate within 6 percent error from the virtually planned osteotomy. Conclusion The 3D-printed patient specific cutting guides used to aid in ETOs proved to be accurate. Through the iterative development of cutting guides, we found that a simple design was key to a reliable and accurate guide. While future clinical trials in human subjects are needed, we believe our custom 3D printed cutting guide design to be effective at aiding in performing ETOs for revision total hip arthroplasty surgeries.
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spelling doaj.art-a4dd25b7ee2d47f3a23ecc6775029c402024-03-05T17:44:06ZengBMC3D Printing in Medicine2365-62712024-03-011011810.1186/s41205-024-00204-3The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomiesReza Bergemann0Gregory R. Roytman1Lidia Ani2Alim F. Ramji3Michael P. Leslie4Steven M. Tommasini5Daniel H. Wiznia6Orthopaedics and Rehabilitation, Yale School of Medicine, Yale UniversityOrthopaedics and Rehabilitation, Yale School of Medicine, Yale UniversityOrthopaedics and Rehabilitation, Yale School of Medicine, Yale UniversityOrthopaedics and Rehabilitation, Yale School of Medicine, Yale UniversityOrthopaedics and Rehabilitation, Yale School of Medicine, Yale UniversityOrthopaedics and Rehabilitation, Yale School of Medicine, Yale UniversityOrthopaedics and Rehabilitation, Yale School of Medicine, Yale UniversityAbstract Background The extended trochanteric osteotomy (ETO) is a surgical technique utilized to expose the intramedullary canal of the proximal femur, protect the soft tissues and promote reliable healing. However, imprecise execution of the osteotomy can lead to fracture, soft tissue injury, non-union, and unnecessary morbidity. We developed a technique to create patient specific, 3D-printed cutting guides to aid in accurate positioning of the ETO and improve osteotomy quality and outcomes. Methods Patient specific cutting guides were created based on CT scans using Synopysis Simpleware ScanIP and Solidworks. Custom 3D printed cutting guides were tested on synthetic femurs with foam cortical shells and on cadaveric femurs. To confirm accuracy of the osteotomies, dimensions of the performed osteotomies were compared to the virtually planned osteotomies. Results Use of the patient specific ETO cutting guides resulted in successful osteotomies, exposing the femoral canal and the femoral stem both in synthetic sawbone and cadaveric testing. In cadaveric testing, the guides allowed for osteotomies without fracture and cuts made using the guide were accurate within 6 percent error from the virtually planned osteotomy. Conclusion The 3D-printed patient specific cutting guides used to aid in ETOs proved to be accurate. Through the iterative development of cutting guides, we found that a simple design was key to a reliable and accurate guide. While future clinical trials in human subjects are needed, we believe our custom 3D printed cutting guide design to be effective at aiding in performing ETOs for revision total hip arthroplasty surgeries.https://doi.org/10.1186/s41205-024-00204-33D PrintingCutting guideTotal hip arthroplastyExtended trochanteric osteotomyPatient specific instrumentation
spellingShingle Reza Bergemann
Gregory R. Roytman
Lidia Ani
Alim F. Ramji
Michael P. Leslie
Steven M. Tommasini
Daniel H. Wiznia
The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomies
3D Printing in Medicine
3D Printing
Cutting guide
Total hip arthroplasty
Extended trochanteric osteotomy
Patient specific instrumentation
title The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomies
title_full The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomies
title_fullStr The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomies
title_full_unstemmed The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomies
title_short The feasibility of a novel 3D-Printed patient specific cutting guide for extended trochanteric osteotomies
title_sort feasibility of a novel 3d printed patient specific cutting guide for extended trochanteric osteotomies
topic 3D Printing
Cutting guide
Total hip arthroplasty
Extended trochanteric osteotomy
Patient specific instrumentation
url https://doi.org/10.1186/s41205-024-00204-3
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