The use of PMMA bone cement has been a key factor in the advent of joint replacement as a surgical option. Despite revolutionary changes in joint replacement technology for the treatment of hip and knee arthritis, the use of PMMA bone cement in its intraoperative application has not significantly changed since Harris' description of third generation cement technique. Future answers to questions regarding cemented implant longevity may lie in the further improvement of existing PMMA technology and standardization of the manufacturing of PMMA bone cement intraoperatively.
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http://dx.doi.org/10.3928/0147-7447-20021201-21 | DOI Listing |
Chin J Traumatol
December 2024
Department of Orthopaedics, Xinhua Hospital of Zhejiang Province, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310003, China.
Purpose: Bone cement-reinforced fenestrated pedicle screws (FPSs) have been widely used in the internal fixation and repair of the spine with osteoporosis in recent years and show significant improvement in fixation strength and stability. However, compared with conventional reinforcement methods, the advantages of bone cement-reinforced FPSs remain undetermined. This article compares the effects of fenestrated and conventional pedicle screws (CPSs) combined with bone cement in the treatment of osteoporosis.
View Article and Find Full Text PDFJ Indian Prosthodont Soc
January 2025
Department of Prosthodontics and Implantology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
Aim: The purpose of this in vitro study was to compare the marginal fit of various three-dimensional (3D) printed and milled polymethylmethacrylate (PMMA) dental prostheses.
Settings And Design: The study was conducted in an in vitro study setting.
Materials And Methods: With a sample size of 45 for each fabrication method, this investigation compared the marginal fit of milled (Group 1) and 3D printed (Group 2) PMMA dental prostheses across different designs.
Expert Rev Med Devices
January 2025
Department of Orthopaedic Surgery, Kansai Medical University, Hirakata, Osaka, Japan.
Introduction: There is a worldwide trend toward 'revisiting' cemented total hip arthroplasty (THA). In Japan, however, cemented THAs accounts for 11%, and the percentage of cemented hemiarthroplasty is estimated to be less than 10%. This review was designed to reconsider the option of cemented THA and to encourage policy changes in Japan to support the best possible care for patients.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
This study aimed to evaluate the effects of nanoparticulate CaCO (NPCC) on the biological properties of calcium silicate-based cements (CSCs), including their cytotoxicity, in vitro osteogenic activity, and interactions with rat femur tissue. The average size of NPCC was 90.3±26.
View Article and Find Full Text PDFBone Joint J
January 2025
Oxford Trauma and Emergency Care, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, Kadoorie Centre, University of Oxford, Oxford, UK.
Aims: There is compelling evidence for the use of cemented hip hemiarthroplasty for displaced intracapsular hip fractures; however, the risks of cement are well reported and in rare cases may be associated with haemodynamic collapse. It is therefore important to improve our understanding of haemodynamic instability, intraoperative monitoring, and strategies to reduce the risk to patients.
Methods: We measured arterial blood pressure using the LiDCO Continuous Non-invasive Arterial Pressure (CNAP) finger cuff during surgery in patients enrolled in the WHiTE 5 trial randomized to cemented or modern uncemented hip hemiarthroplasty at a single recruiting site.
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