American-Israeli Breakthrough in Bone Reconstruction
In recent years, orthopaedics has experienced a true technological boom, with 3D printing technology being one of the main drivers of this process. In 2024–2025, the Hospital for Special Surgery (HSS) in New York, one of the leading orthopaedic clinics in the USA, in collaboration with the Ichilov Medical Center in Tel Aviv, is actively implementing 3D-printed implants for osteointegration. This innovation allows for the creation of individualized structures that perfectly match the patient's anatomy, reduce operation times, and accelerate recovery. The project combines American expertise in orthopaedic surgery with Israeli experience in medical technologies, making it an example of effective international cooperation.
Personalized 3D Printing in Joint and Bone Surgery
Dr. Robert Rosenbruch from HSS and Dr. Amir Sternheim from Ichilov have become key figures in this initiative. Their goal is to overcome the limitations of standard implants that require prolonged adaptation and can cause complications. “The use of 3D technologies allows us to achieve unprecedented accuracy in joint reconstruction,” notes Dr. Sternheim. The technology is already being applied in complex cases, such as bone reconstruction after injuries or oncological surgeries.
A significant advantage is the ability for preoperative planning: surgeons can virtually model the operation, determine the optimal position of the implant, and anticipate possible complications before the procedure begins. This enhances the safety of interventions and improves outcomes.
The process of creating 3D-printed implants begins with detailed scanning of the damaged area using CT or MRI. The obtained data is processed by special software that creates a digital model, which is then sent to a 3D printer. The printer uses biocompatible materials, such as titanium alloys or polymers, allowing for the recreation of complex structures with a porous surface for better osteointegration.
Modern printers use selective laser sintering (SLS) or electron beam melting (EBM) technologies, creating a microporous structure with pores ranging from 100 to 500 microns—optimal for the growth of bone tissue and vessels. This precision ensures high biomechanical compatibility of the implant with the patient's bone.
In addition to individualized design, the technology reduces the duration of surgeries, as there is no need to fit the implant during the intervention. This lowers the risk of complications and promotes rapid recovery. Patients report less pain and a shorter hospitalization period—at Ichilov, the length of stay has decreased by 20–30%.
An additional advantage is the ability to combine materials with different properties. For example, the base may be made of titanium, while the surface is coated with a bioactive layer to enhance integration.
International Cooperation and a Look to the Future
The collaboration between HSS and Ichilov has been made possible by strong ties between medical centers in the USA and Israel. Israeli companies such as Nano Dimension, Stratasys, and CollPlant provide technological support: from high-precision 3D printers to bioactive materials. CollPlant stands out particularly for developing a technology for producing human collagen using genetically modified plants.
The American side contributes clinical expertise and access to extensive research databases. HSS performs over 30,000 surgeries annually, providing ideal conditions for testing and implementing new solutions. Regular exchanges of specialists and joint master classes accelerate the introduction of innovations and promote mutual learning.
As part of the partnership, a common database of clinical data is being formed, allowing for the analysis of the effectiveness of various types of implants and materials. This contributes to the continuous improvement of technologies and the updating of treatment standards.
The future of 3D printing in orthopaedics looks promising. It is expected that in the coming years, it will become the standard in reconstructive surgery, especially in complex cases following injuries and oncological interventions. Research is underway on biodegradable implants that will eventually be completely replaced by bone tissue.
Promising directions include 4D printing, where structures can change properties under the influence of external factors, and integration with sensors that monitor healing in real time. The use of artificial intelligence for designing truly personalized solutions based on data analysis is also being developed.
Despite the need to comply with strict regulatory requirements and create new quality standards, the advantages of the technology are clear: reduced trauma, rapid recovery, and a high level of implant adaptation. Thanks to such international-scale projects, orthopaedics is moving towards a new era of personalized medicine.