ArticleBMC musculoskeletal disorders2022
Classification and reconstruction of femoral bone defect in the revision of aseptic loosening of distal femoral endoprostheses: a 10-year multicenter retrospective analysis.
Article in BMC musculoskeletal disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 9 citations in OpenAlex.
- Uncemented slotted stem versus short stem for distal femoral endoprosthetic reconstruction in pediatric bone tumor patients: a retrospective analysis of prosthetic performance and functional outcomes.Journal of orthopaedic surgery and research · 2026Article
- The Nasser-Gavvala-Shirodkar-Botchu Classification: A Classification System for Loosening of Endoprosthetic Replacements.Journal of clinical medicine · 2025Article
- Utilization of 3D-Printed Customized Uncemented Stem Prostheses for Revision of Aseptic Loosening in the Distal Femoral Cemented Prostheses: Case Series and Literature Review.Orthopaedic surgery · 2025Review
- Effect of segmental rim defect morphology on press-fit stability of the cementless acetabular cup: a finite element analysis.Frontiers in medicine · 2025Article
- Porous metal materials for applications in orthopedic field: A review on mechanisms in bone healing.Journal of orthopaedic translation · 2024Review
- Three-dimensional design custom-made uncemented stem for revision of cemented distal femoral endoprosthesis due to aseptic loosening.Journal of orthopaedic surgery and research · 2023Article
- Aseptic loosening of tumor prostheses in distal femur after revision surgery: a retrospective study.World journal of surgical oncology · 2023Article
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4 authors at 3 institutions in 1 country.
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Abstract
objectiveThis study proposes a system for classifying the aseptic loosening of distal femoral endoprostheses and discusses reconstruction methods for revision surgery, based on different classification types.
methodsWe retrospectively analyzed the data of patients who received revision surgery for aseptic loosening in distal femoral tumor endoprosthesis from January 2008 to December 2020 at 3 bone tumor treatment centers in China. Based on the patient imaging data, we proposed a classification system for the aseptic loosening of distal femoral endoprostheses and discussed its revision surgery strategy for various bone defects.
resultsA total of 31 patients were included in this study, including 21 males and 10 females aged 15-75 y (average: 44.3 y). First-revision surgery was performed on 24 patients, whereas second-revision surgery was conducted on 7 patients. The 31 patients were classified into different types based on the degree of aseptic loosening: Type I, 12 patients (38.7%); Type IIa, 7 patients (22.5%); Type IIb, 7 patients (22.5%); Type III, 4 patient (12.9%); and Type IV, 1 patient (3.2%). For type I, 11 patients underwent revisions with standard longer-stem prostheses (one with the original prosthesis), and one patient had the original prosthesis plus cortical allograft strut. For type II (a and b), 10 patients underwent revisions with original prosthesis or longer-stem prosthesis and 4 patients combined with cortical allograft strut. For type III, one patient underwent revision with a longer-stem prosthesis and the other 3 patients with a custom short-stem prosthesis. For type IV, only one patient underwent revision with a custom short-stem prosthesis.
conclusionsAseptic loosening of the distal femoral prosthesis can be divided into 4 types: type I, type II (a, b), type III and type IV. The reconstruction methods of our centers for different types of bone defects can offer some reference value in the revision of aseptic loosening.
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