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Pigmented Villonodular Synovitis (PVNS) is a relatively rare, benign proliferation lesion of the synovium of large joints. The etiology is varied and unclear. We had report a 79-year-old woman had PVNS after 14 years right hip arthroplasty with metal prosthesis. Here we report another 4 patients had PVNS after arthroplasty. The second one had PVNS in the 2(th) year after hip arthroplasty with bone cement prosthesis. The specimen was brown and like usual PVNS in tissue. The third case had PVNS in the 8(th) after arthroplasty with human bone prosthesis because of the recurrence of PVNS. The proliferated synovium became black from brown. There was brown and many groups black pigment in the tissue. The fourth one had PVNS in the 4(th) year after knee arthroplasty with polyethylene prosthesis. The specimen was yellow. There was no pigment in the tissue but multinucleated giant cells with unstained foreign body. The fifth patient had PVNS in the 10(th) month after the left hip arthroplasty with metal prosthesis. The macroscopy was yellow. There were hemosiderin particles in the tissue but black metal particles. This indicates that arthroplasty with prosthesis could cause some new disease or PVNS had new etiology with different pathological show.
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J Am Acad Orthop Surg Glob Res Rev
December 2024
From the Connecticut Orthopaedics, Fairfield, CT (Dr. Bernstein); the Epidemiology and Real-World Data Sciences, Johnson & Johnson MedTech, New Brunswick, NJ (Dr. Gupta and Ruppenkamp); the Global Health Economics and Market Access, Johnson & Johnson MedTech, Raynham, MA (Dr. Kabiri and Goldstein); and the Medical Affairs, Johnson & Johnson MedTech, Palm Beach Gardens, FL (Dr. Diaz).
Background: Computer-assisted fluoroscopic navigation and robotic technologies aim to optimize implant placement and alignment in primary total hip arthroplasty (THA) to improve patient outcomes. This study uses a retrospective hospital billing database covering 1,300 hospitals to compare the clinical and economic effect of these technologies.
Methods: The study compared patients undergoing THA with robotic versus computer-assisted fluoroscopic navigation technologies between January 1, 2016, and September 30, 2021, using the Premier Healthcare Database.
Arch Orthop Trauma Surg
December 2024
Department of Orthopaedic Surgery, Sint Maartenskliniek, Ubbergen, The Netherlands.
Introduction: Recent studies have increasingly provided evidence that one-stage septic revisions for hip and knee are a safe treatment option for periprosthetic joint infections (PJI) in selected patients. However, there is still a wide treatment variation concerning indications and execution among different practices. This study aimed to describe these differences.
View Article and Find Full Text PDFArthroplast Today
December 2024
Department of Orthopedic Surgery, Vanderbilt University, Nashville, TN, USA.
Background: Aseptic loosening is the most common aseptic failure modality following total knee arthroplasty. Recent literature suggests that the implant-cement interface is the "weak-link" in fixation and lipid contamination may drive this debonding pattern. Therefore, the purpose of this study was to determine if the "double-butter" technique would significantly decrease lipid contamination of the tibial tray.
View Article and Find Full Text PDFArthroplast Today
December 2024
Department of Orthopaedic Surgery, Changi General Hospital, Singapore.
Adverse local tissue reaction (ALTR) and osteolysis formation are more frequently described complications after total hip arthroplasty (THA) with metal-on-metal bearings. In this report, we present a unique case of ALTR and osteolysis formation with ceramic-on-ceramic bearing THA, which has been less commonly described in the existing literature. This rare case occurred in a 54-year-old patient who had a primary THA done 17 years prior to representing to our institution.
View Article and Find Full Text PDFArthroplast Today
December 2024
Department of Orthopaedic Surgery, The Queen Elizabeth Hospital, Woodville South, South Australia, Australia.
Lower limb amputation has been well characterized in the literature to cause resultant osteoarthritis in the hip of the contralateral limb. This further amplifies the already significant physical disability and morbidity that come with lower limb amputation. The use of total hip arthroplasty (THA) in patients with lower limb amputations is rare, with available literature subsequently also limited.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!