1. Survivorship, complications, and functional outcomes of uncemented distal femoral endoprosthesis with short, curved stem for patients with bone tumours.
- Author
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Gong T, Lu M, Sheng H, Li Z, Zhou Y, Luo Y, Min L, and Tu C
- Subjects
- Humans, Adult, Male, Female, Adolescent, Young Adult, Retrospective Studies, Prosthesis Implantation methods, Femur surgery, Bone Neoplasms surgery, Treatment Outcome, Middle Aged, Prosthesis Design, Femoral Neoplasms surgery, Prosthesis Failure, Postoperative Complications epidemiology, Postoperative Complications etiology
- Abstract
Aims: Endoprosthetic reconstruction following distal femur tumour resection has been widely advocated. In this paper, we present the design of an uncemented endoprosthesis system featuring a short, curved stem, with the goal of enhancing long-term survivorship and functional outcomes., Methods: This study involved patients who underwent implantation of an uncemented distal femoral endoprosthesis with a short and curved stem between 2014 and 2019. Functional outcomes were assessed using the 1993 version of the Musculoskeletal Tumour Society (MSTS-93) score. Additionally, we quantified five types of complications and assessed osseointegration radiologically. The survivorship of the endoprosthesis was evaluated according to two endpoints. A total of 134 patients with a median age of 26 years (IQR 16 to 41) were included in our study. The median follow-up time was 61 months (IQR 56 to 76), and the median functional MSTS-93 was 83% (IQR 73 to 91) postoperatively., Results: Overall, 21 patients (16%) encountered complications, and the rate of aseptic loosening was 7% (9/134). The survival rate up to 8.5 years was 93% for aseptic loosening as the endpoint, and 88% for any reason as the endpoint, retrospectively., Conclusion: The use of an uncemented distal femoral endoprosthesis with a short, curved stem demonstrated a low incidence of aseptic loosening and achieved long-term survivorship of up to nine years. Meanwhile, aseptic loosening typically occurs in the early stage postoperatively., Competing Interests: Y. Luo reports funding support for the manuscript from the Key project of Sichuan Provincial Department of Science and Technology (2023YFH0099), related to this study., (© 2024 The British Editorial Society of Bone & Joint Surgery.)
- Published
- 2024
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