Survivorship, complications, and functional outcomes of uncemented distal femoral endoprosthesis with short, curved stem for patients with bone tumours.
Bone Joint J
; 106-B(9): 1000-1007, 2024 Sep 01.
Article
in En
| MEDLINE
| ID: mdl-39216865
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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Postoperative Complications
/
Prosthesis Design
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Prosthesis Failure
/
Femoral Neoplasms
Limits:
Adolescent
/
Adult
/
Female
/
Humans
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Male
/
Middle aged
Language:
En
Journal:
Bone Joint J
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
United kingdom