The incidence of periprosthetic fractures of distal femur (PPDFFx) after primary total knee arthroplasties is described around 0.3% and 2.5% and it is increasing as the number of patients with total knee arthroplasty continues to arise. surgical options treatments for PPDFFx include fixation in the form of eather Open reduction and internal fixation (ORIF), or retrograde intramedullary nailing (RIMN), or conventional (non locked) plating, or locked plating such as the Less Invasive Stabilization System (LISS), or dynamic condylar screws. In recent years, however, the use of megaprostheses has been increasing. Patients with periprosthetic fractures of distal femur after primary total knee arthroplasties treated with ORIF or with the use of Distal femur replacement (DFR) were retrospectively analyzed in this to evaluate differences in intra-operative blood loss, need of blood trasfusion, weight bearing, range of motion, rate of complications, rate of revision surgery and functional outcome according Oxford Knee Score between two groups. Treatment of Periprosthetic distal femur fracture remains controversial. While ORIF seems to guarantee less percentage of complications and reoperation rate, those treated with megaprosthesis seem to gain better range of motion in a very short post-operative time. In the future it will be necessary to investigate with greater numbers possible advantages and disadvantages of the various treatments in periprosthetic distal femur fractures.
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http://dx.doi.org/10.52965/001c.33772 | DOI Listing |
Arch Orthop Trauma Surg
December 2024
Department of Orthopedic Surgery, University of Michigan, Ann Arbor, MI, USA.
Objectives: Distal femur fractures (DFF) are frequently treated surgically with single traditional constructs (STC), such as with a lateral plate or intramedullary nail, although nail-plate combination constructs (NPCC) are gaining attention. The purpose of this study is to compare outcomes between NPCC and STC for surgical fixation of DFF to guide surgeon decision-making.
Methods: Data Sources: This study is a systematic review and meta-analysis using PubMed, CINAHL, MEDLINE, Web of Science, Science Direct, and SPORTDiscus from database inception until January 10th, 2024.
Clin Nucl Med
December 2024
From the Department of Nuclear Medicine, Peking University First Hospital, Beijing.
An 18F-FDG PET/CT was conducted on a 44-year-old man with a history of dermatomyositis and avascular necrosis of left femoral head, due to a fever of unknown origin. The scan revealed patchy and cloudy high densities within the medullary cavities of bilateral distal femur and proximal tibia, exhibiting peripheral high 18F-FDG avidity. Subsequent MRI confirmed bone infarction.
View Article and Find Full Text PDFCureus
November 2024
Orthopaedics, Namah Hospital, Mumbai, IND.
Background The selection of properly sized implants is essential to achieve a well-balanced knee and favorable clinical outcomes following Total Knee Arthroplasty (TKA). There is limited evidence in the literature regarding the effectiveness of robotic-assisted technology (RA-TKA) without imaging in accurately predicting implant sizes. Our aim was to provide an evidence-based assessment of this technology's accuracy in selecting appropriate implant sizes during robotic-assisted, image-free TKA.
View Article and Find Full Text PDFOTA Int
March 2025
Department of Orthopedic Surgery, Detroit Medical Center, Detroit, MI.
Introduction: Intramedullary femoral nails (IMFNs) need to be removed for subsequent joint replacement, refracture, nonunion, or infection. The tools used to extract newer IMFNs may not be suited for removal of older implants, especially if broken. The purpose of this study was to describe a novel technique in femoral nail extraction when primary measures fail and a report on 6 cases where it was used.
View Article and Find Full Text PDFOrthop Surg
December 2024
Department of Orthopedics, The 960th Hospital of the People's Liberation Army, Jinan, China.
Objective: Aseptic loosening (AL) is a common mechanical complication following reconstruction of the distal femoral cemented prosthesis (DFCP), often resulting in severe bone loss, which complicates prosthesis revision. 3D-printed personalized implants represent an emerging solution for the reconstruction of complex bone defects. This study aimed to investigate the early therapeutic effects of using a 3D-printed, customized, uncemented stem prosthesis for revising aseptic AL in DFCP.
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