Is Knee Arthroscopy Beneficial in Treating Traumatic Meniscal Tears on Patients Older Than 60 Years?
Bibliographic record
Abstract
Abstract Knee arthroscopic surgery is usually performed on young or middle-aged patients with meniscal tears. However, we have noted an amount of active elderly patients who suffered from traumatic meniscal tear without significant degenerative changes. Outcome data were prospectively collected and retrospectively reviewed in patients older than 60 years who underwent partial arthroscopic meniscectomy between April 2008 and July 2013. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores, Kellgren–Lawrence (K–L) grade, Knee Society Score (KSS), and pain scores were collected, and conversion to total knee arthroplasty (TKA) was recorded. Subgroups comparing the clinical outcome of different level of K–L grade and Outerbridge's score were conducted. At an average of 31 months of follow-up (standard deviation [SD]: 8.9; range, 24–63 months) for 96 patients with a mean age of 65.8 years (SD: 5.7; range, 60–83 years), 12 patients underwent conversion to TKA at an average of 2.1 years. Patients with a clear traumatic history of the knee have better improvement in visual analog scale (p < 0.001), KSS functional score (p = 0.005), and WOMAC score (p < 0.001), patients with K–L grade greater than III were 3.1 times more likely to undergo conversion to TKA than patients with K–L grade less than III. The findings indicate that patients older than 60 years with mild osteoarthritis and clear traumatic history of the meniscus are a good indication for arthroscopic partial meniscectomy. The level of evidence is level IV (a retrospective case series).
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".