Revista de Morfología y Anatomía

The Use of 3D Printing Pelvis and Hip in a Complex THA Clinical Experience and Reports of Literature

Abstract

Chenyu Huang1,2,3 *, Qingqiang Yao1,3,4, Wei Liu2, Yan Xu1,3,4, Cheng Tang1,3,4, Bo Wei1,3,4, Jiayi Li1,3,4, Liming Wang1,3,4

Background: Total Hip Arthroplasty (THA) is a good solution of Developmental Dysplasia of the Hip (DDH). However, patients diagnosed with Crowe type IV are difficult to deal with. With traditional operation skills, the operation time is quite long and the patients will lose a lot of blood.

Case presentation: We present the case of a 58-year-old male patient who underwent left THA due to Crowe type IV DDH with the help of 3D printing models. Before the operation, we put the CT image into computer software named mimics. After getting the stl. Document, we use 3D printer to print the models out. By using the models, we planned the operation in advance. And after sterilizing the models, we put them in the operation area, which saves a lot of operation time and reduces much blood loss by giving surgeons a better anatomy view.

Methods: A health institution-based retrospective cohort study was conducted among 421 children with HIV/AIDS from to 2009-2018. The Time to develop TB was defined as the time from enrollment for ART care until the development of TB among children on ART. Variables with a P-value <0.25 at bivariate Cox regression analysis, were entered into the multivariable Cox model. Multivariable-Cox-regression model with 95% CI and AHR was used to identify significant predictor variables to develop TB at P< 0.05.

Conclusion: THA with the help of 3D printing pelvis and femur can result in a relatively short recovery time and provide good clinical efficacy of type IV DDH patients.