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Updated: May 30, 2025
08:49
Models of Bone Metastasis
Published on: September 4, 2012
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Systematic review of 99 extremity bone malignancy survival prediction models
Cheng-Yo Lai1, Hung-Kuan Yen2, Hao-Chen Lin3
1Department of Orthopedic Surgery, National Taiwan University Hospital Hsinchu Branch, Hsinchu, Taiwan.
Summary
Most prediction models for extremity metastasis and sarcoma lack excellence. This systematic review highlights suboptimal design and validation as key issues for these cancer prediction tools.
Area of Science:
- Oncology
- Medical Statistics
- Systematic Reviews
Background:
- Numerous prediction models exist for extremity metastasis and sarcoma.
- Existing models require evaluation for clinical utility.
Purpose of the Study:
- To systematically evaluate prediction models for extremity metastasis and sarcoma.
- To assess model performance using the Utility Prediction Model (UPM) framework.
Main Methods:
- Systematic literature search following PRISMA guidelines (PubMed, Embase, Cochrane).
- Inclusion of models predicting 1-year survival (extremity metastasis) and 5-year survival (sarcoma).
- Assessment using UPM scores (0-16) and categorization (excellent, good, fair, poor).
Main Results:
- Evaluated 5 extremity metastasis and 94 sarcoma models.
- Only 4% (4/99) models achieved 'excellent' UPM scores.
- Majority of models were rated 'good' (62%) or 'fair' (31%).
Conclusions:
- Most extremity metastasis and sarcoma prediction models do not meet UPM excellence criteria.
- Key limitations include poor study design, insufficient external validation, and lack of accessible tools.
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