A new 3D printing porous trabecular titanium metal acetabular cup for primary total hip arthroplasty: a minimum 2-year follow-up of 92 consecutive patients

Geng, Xilin; Li, Yang; Li, Feng; Wang, Xinguang; Zhang, Ke; Liu, Zhongjun; Tian, Hua

doi:10.1186/s13018-020-01913-1

Cited by 30 publications

(29 citation statements)

References 27 publications

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“…The outcomes of 3D printed ACT sockets were retrospectively assessed in 108 hips by Geng et al [ 26 ] at an average follow-up of 48 months. A significant clinical improvement was observed, with 106 of 108 (91.3%) patients satisfied with the outcome.…”

Section: Clinical and Radiological Outcomesmentioning

confidence: 99%

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Off-the-shelf 3D printed titanium cups in primary total hip arthroplasty

Castagnini¹,

Caternicchia²,

Biondi³

et al. 2021

WJO

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Three-dimensional (3D)-printed titanium cups used in primary total hip arthroplasty (THA) were developed to combine the benefits of a low elastic modulus with a highly porous surface. The aim was to improve local vascularization and bony ingrowth, and at the same time to reduce periprosthetic stress shielding. Additive manufacturing, starting with a titanium alloy powder, allows serial production of devices with large interconnected pores (trabecular titanium), overcoming the drawbacks of tantalum and conventional manufacturing techniques. To date, 3D-printed cups have achieved dependable clinical and radiological outcomes with results not inferior to conventional sockets and with good rates of osseointegration. No mechanical failures and no abnormal ion release and biocompatibility warnings have been reported. In this review, we focused on the manufacturing technique, cup features, clinical outcomes, open questions and future developments of off-the-shelf 3D-printed titanium shells in THA.

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Section: Clinical and Radiological Outcomesmentioning

confidence: 99%

“…Radiographic signs of osseointegration were evident in all the cups. The overall survival rate was 99.1% at 72 months, with cup survival rate achieving 100%[ 26 ].…”

Section: Clinical and Radiological Outcomesmentioning

confidence: 99%

Off-the-shelf 3D printed titanium cups in primary total hip arthroplasty

Castagnini¹,

Caternicchia²,

Biondi³

et al. 2021

WJO

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“…The application of 3D printing in primary joint arthroplasty is mainly realized by designing osteotomy guide plates [ 8 ] and customizing personalized prostheses [ 9 , 10 ]. A series of clinical studies have shown that 3D printing technology can achieve excellent clinical outcomes [ 11 – 13 ]. With the further development of the research, orthopedic surgeons are using 3D printing technology to assist in RTHA and revision total knee arthroplasty (RTKA), especially for complex revision surgery involving bone defects.…”

Section: Introductionmentioning

confidence: 99%

Clinical and radiological outcomes in three-dimensional printing assisted revision total hip and knee arthroplasty: a systematic review

et al. 2021

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Background This study investigates whether three-dimensional (3D) printing-assisted revision total hip/knee arthroplasty could improve its clinical and radiological outcomes and assess the depth and breadth of research conducted on 3D printing-assisted revision total hip and knee arthroplasty. Methods A literature search was carried out on PubMed, Web of Science, EMBASE, and the Cochrane Library. Only studies that investigated 3D printing-assisted revision total hip and knee arthroplasty were included. The author, publication year, study design, number of patients, patients’ age, the time of follow-up, surgery category, Coleman score, clinical outcomes measured, clinical outcomes conclusion, radiological outcomes measured, and radiological outcomes conclusion were extracted and analyzed. Results Ten articles were included in our review. Three articles investigated the outcome of revision total knee arthroplasty, and seven investigated the outcome of revision total hip arthroplasty. Two papers compared a 3D printing group with a control group, and the other eight reported 3D printing treatment outcomes alone. Nine articles investigated the clinical outcomes of total hip/knee arthroplasty, and eight studied the radiological outcomes of total hip/knee arthroplasty. Conclusion 3D printing is being introduced in revision total hip and knee arthroplasty. Current literature suggests satisfactory clinical and radiological outcomes could be obtained with the assistance of 3D printing. Further long-term follow-up studies are required, particularly focusing on cost-benefit analysis, resource availability, and, importantly, the durability and biomechanics of customized prostheses using 3D printing compared to traditional techniques.

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“…Porous materials, also called cellular solids, fabricated by additive manufacturing have attracted attention in biomedical implants, such as acetabular hip cups [ 1 , 2 , 3 ], mandibles [ 4 ], fusion cages [ 5 , 6 ], and various other applications [ 2 ]. Implants made from a material with a low elastic modulus can reduce the effect of stress shielding [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis on Initial Crack Site of Porous Structure Fabricated by Electron Beam Additive Manufacturing

Tsai

Yang

Hung³

et al. 2021

Materials

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Ti6Al4V specimens with porous structures can be fabricated by additive manufacturing to obtain the desired Young’s modulus. Their mechanical strength and deformation behavior can be evaluated using finite element analysis (FEA), with various models and simulation methodologies described in the existing literature. Most studies focused on the evaluation accuracy of the mechanical strength and deformation behavior using complex models. This study presents a simple elastic model for brittle specimens followed by an electron beam additive manufacturing (EBAM) process to predict the initial crack site and threshold of applied stress related to the failure of cubic unit lattice structures. Six cubic lattice specimens with different porosities were fabricated by EBAM, and compression tests were performed and compared to the FEA results. In this study, two different types of deformation behavior were observed in the specimens with low and high porosities. The adopted elastic model and the threshold of applied stress calculated via FEA showed good capabilities for predicting the initial crack sites of these specimens. The methodology presented in this study should provide a simple yet accurate method to predict the fracture initiation of porous structure parts.

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A new 3D printing porous trabecular titanium metal acetabular cup for primary total hip arthroplasty: a minimum 2-year follow-up of 92 consecutive patients

Cited by 30 publications

References 27 publications

Off-the-shelf 3D printed titanium cups in primary total hip arthroplasty

Off-the-shelf 3D printed titanium cups in primary total hip arthroplasty

Clinical and radiological outcomes in three-dimensional printing assisted revision total hip and knee arthroplasty: a systematic review

Finite Element Analysis on Initial Crack Site of Porous Structure Fabricated by Electron Beam Additive Manufacturing

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