Regional Analgesia After Total Knee Replacement
Bibliographic record
Abstract
Our protocol was written before the modification for posterior lumbar plexus block by using the peripheral nerve stimulator became popular, and we totally agree that the posterior lumbar plexus block is superior to the femoral three-in-one block. We also agree with regard to the need for patient-controlled analgesia morphine in this subset of patients with the femoral block. In our study, we used the patient-controlled analgesia to allow patients to dose themselves to achieve similar analgesic endpoints, and morphine consumption was used as an indicator of the severity of the pain. Thus, our pain scores are similar, but the morphine consumption is not. Evaluation of the femoral catheter location was done entirely for experimental purposes and is not routinely done for this block in our institution. The investigation, however, teaches a good point that not all catheters reach where you aim to put them. Although there is no doubt about the presence of opiate receptors in the spinal cord and peripheral nerve nociceptive terminals, their presence in the peripheral axons has not been proven, to our knowledge. Systemic absorption of opiates delivered in the periaxonal area could per se provide some analgesia. We did not use opiates in our infusion to keep the study as clean as possible. S. Ganapathy FRCA FRCPC J. Watson FRCPC R. Wasserman FRCPC DABA K. Armstrong FRCPC D. G. Chess FRCSC
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.019 | 0.004 |
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 source (direct Gemma or distilled Codex), 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".