The authors present a method of semiquantitative analysis of bone scintigraphy in the study of the evolution of total hip prosthesis and analyse the course of remodelling processes in a group of patients who showed no post surgical complication after total isoelastic hip arthroplasty without cement. The authors will use data worked out as terms of comparison in the study of those patients who present, after surgery, a symptomatology difficult to be evaluated in order to discriminate the cases where the symptoms indicate the beginning of a pathologic process (loosening and/or infection).
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Hip Int
January 2025
Orthopaedic Clinic Lucerne, Lucerne, Switzerland.
Introduction: The RM Pressfit vitamys is an uncemented, titanium particle-coated, isoelastic monoblock cup made of vitamin E blended highly cross-linked polyethylene. We addressed the following questions: (1) What are the clinical and (2) radiographic outcomes 10 years after implantation? (3) What is the revision rate?
Methods: In this prospective observational study in a tertiary care centre we investigated all consecutive cases of total hip replacement with the RM Pressfit vitamys cup between September 2009 and November 2011. It was implanted in 162 hips, 49.
Bone Jt Open
October 2024
Department of Orthopaedics and Traumatology, University Medical Centre of the Johannes Gutenberg-University of Mainz, Mainz, Germany.
Arch Orthop Trauma Surg
January 2024
Department of Orthopaedics and Traumatology, University Medical Centre of the Johannes Gutenberg-University of Mainz, Mainz, Germany.
Introduction: Bone preservation and long-term survival are the main challenges in cementless total hip arthroplasty (THA). A good bone stock is especially important for adequate anchorage of the cup in revision cases. However, the optimal acetabular cup design for preserving good bone stock is still unclear.
View Article and Find Full Text PDFHSS J
February 2023
Department of Orthopaedic Surgery, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.
The Epoch FullCoat Hip Stem (Zimmer) was an isoelastic composite femoral stem developed to address stem stiffness concerns. : We sought to evaluate the long-term bone mineral density (BMD) of a cohort of patients who underwent total hip arthroplasty (THA) using the Epoch isoelastic stem and having more than 2-decade follow-up. : We conducted a retrospective chart review of all patients who were study subjects at our institution in a multicenter prospective trial for the Food and Drug Administration of the Epoch implant in the mid-1990s.
View Article and Find Full Text PDFJ Arthroplasty
June 2022
Department of Orthopaedic Surgery, Ordensklinikum Barmherzige Schwestern, Vinzenz Gruppe, Center of Orthopaedic Excellence, Teaching Hospital of the Paracelsus Medical University Salzburg, Linz, Austria.
Background: Preserving bone stock in younger and more active patients after total hip arthroplasty (THA) is important for future revision. Newer prosthesis designs, including short femoral stems and isoelastic acetabular cups, are likely to preserve more bone stock. However, long-term follow-up studies on bone remodeling after short-stem THA with an isoelastic monoblock acetabular cup are few.
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