A Critical Review of Canadian Hip and Knee Replacement Trends and Revisions
Bibliographic record
Abstract
One of the most popular and affordable inpatient operations used to treat osteoarthritis in the older population in Canada is hip and knee replacement. However, due to their higher risk of complications and associated costs, revision procedures pose substantial challenges. Using the Canadian Joint Replacement Registry (CJRR) Annual Reports (2017–2019), a recent study on revision predictors indexed by PubMed, and preliminary findings from the open-source Kaggle dataset Too Hip to be Cool, this narrative review summarizes national trends, revision risks, and cost implications for hip and knee arthroplasty in Canada. Descriptive analysis of the Kaggle dataset was conducted in conjunction with a review of pertinent national registry reports and peer-reviewed literature. Surgery numbers, demographic trends, revision causes, and related inpatient expenses were among the important outcomes. The average number of hip and knee replacements performed in Canada is over 130,000 per year, and over 20% more have been performed in the past five years. Degenerative arthritis is the main cause of this number. The primary causes of revision rates, which are still low but costly, are infection, aseptic loosening, and instability. Exploratory Kaggle data analysis suggests potential routes for artificial intelligence risk prediction, which is consistent with registry patterns. This analysis emphasizes the need to track revision risks to inform optimal practices and the ongoing high demand for hip and knee replacements. Data-driven decision-making can be improved, and patient outcomes for Canadians can be optimized by connecting registries with open patient-level statistics and PROMs.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.004 | 0.004 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".