With ever increasing cost-pressure and requirements from regulators to show the efficacy of new arthroplasty (joint replacement) devices, the International Society for Technology in Arthroplasty has become a more relevant conference than ever before. With a mix of orthopedic surgeons, academics and representatives from the industry, the conference was a great opportunity to have fruitful discussions about new and ongoing topics in arthroplasty. We look back at the highlights and the lessons learned.
When Dr. Noble, an orthopaedic surgeon specializing in total joint replacement at Palm Beach Orthopaedic Institute, FL, found himself without hard copy X-rays to plan his hip and knee arthroplasty procedures, he took a leap towards digital pre-operative planning.
In a recent study in the Netherlands, all 12 patients who underwent an acetabular reconstruction of large Paprosky type 3 defects using the Materialise aMace custom acetabular cup, were recorded as being satisfied with the results of their procedure. The study, by Marieke Baauw, MD, Gijs Gerard van Hellemondt, MD and Maarten Spruit, MD, PhD from the Department of Orthopaedic Surgery at Sint-Maartenskliniek in Nijmegen, the Netherlands reported on their use of the aMace as part of an integral approach which included “a detailed approach to defect analysis, including measurement of bone deficiency and bone quality”. As reported in Helio Orthopaedics, the study presents positive results from a follow up of the 12 patients at least 18 months after surgery.
Hip disorders such as cartilage degeneration or bone fractures are common pathologies which are often treated with prosthetic surgery. Andrea Calvo-Echenique from the University of Zaragoza, Spain investigated how to prolong the lifespan of hip prostheses, and assessed the best options by comparing different stems and bearing materials. Her goals were to reduce the wear in bearing surfaces, as well as reducing the loosening of the stem, which tends to be caused by a lack of mechanical load in the bone. She received a Mimics innovation Award for the best poster submission in 2015.
Both surgical planning and medical 3D Printing are providing surgeons with more options for the surgical treatment of hip patients. With complex hip revision surgery in mind, we recently organized a webinar to present the range of planning and patient-specific surgical solutions offered by Materialise. These include X-ray based planning, 3D-printed anatomical models, and patient-specific surgical guides and implants. We also refer to this as the Materialise Hip Continuum.