We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.


Download Mobile App
Recent News COVID-19 Medica 2021 AI Critical Care Surgical Techniques Women's Health Patient Care Health IT Business

Perry Health

Advanced Navigation Solution Aids THR Surgery

By HospiMedica International staff writers
Posted on 16 Nov 2021
A digital pre-operative planning application enables orthopedic surgeons to perform navigated CT-based total hip replacement surgery (THR).

The Naviswiss (Brugg, Switzerland) Naviplan hip application is a CT-based solution that assists surgeons in optimal positioning of THR implants, automatic three-dimensional (3D) segmentation, and advanced image processing. The pre-operative planning tool automatically analyzes the CT DICOM data and proposes initial implant configuration. After reviewing and fine-tuning the pre-operative plan, it is transferred to the Naviswiss navigation system and used during the surgery to execute it as planned.

Image: The Naviplan application helps plan total hip replacements (Photo courtesy of Naviswiss)
Image: The Naviplan application helps plan total hip replacements (Photo courtesy of Naviswiss)

Naviswiss is a miniature hip navigation system that uses proprietary optical tracking technology to provide real-time intra-operative spatial measurements and relationships using optical tags attached to the pelvis, cup impactor, and femur. The relationships between the tags are documented using a camera, and displayed in real-time during alignment and insertion to determine cup inclination, anteversion, leg length, and offset. The open platform system works with all major hip implants and approaches.

“The seamless integration of a largely automatic pre-operative planning with the extremely easy to use navigation system marks a milestone in quality control for orthopedics. The surgeon can rely on highly accurate guidance in placing the acetabular components,” said Jan Stifter, CEO of Naviswiss. “CT-based navigation may be needed in difficult deformity cases, while kinematic registration may be preferred in more traditional surgeries. With the addition of image-based surgery we now enter a completely new league which puts us on eye-level with the robotic systems.”

A hip replacement implant is a ball-and-socket mechanism, designed to simulate a human hip joint and mimic its movement. Typical components include a stem that inserts into the femur, a ball that replaces the head of the thigh bone, and a shell that lines the hip socket. Assessment of individual patient pelvic tilt and digital measurement of leg length and offset changes are used to achieve more consistent leg length restoration.

Related Links:

Latest Surgical Techniques News