The Use of Platelet-rich Plasma in Orthopedic Injuries
Bibliographic record
Abstract
Platelet-rich plasma (PRP) is an autologous concentration of blood-derived human platelets in a small volume of plasma. The types of PRP vary according to the commercial preparation system used, the platelet concentration, or the anticoagulant or activator used. Autologous conditioned plasma is an autologous concentration of human platelets in plasma 2 to 4 times greater than that which is found in blood at baseline. Platelets are important to the normal healing response of tissue by the local secretion of growth factors and recruitment of reparative cells in an area of injury. PRP is theorized to create an optimal healing environment in a region of tissue injury. This is a literature review of currently published studies using PRP in orthopedic injuries. We performed a literature search in PubMed and Medline in April 2013. We concluded that given the number of variations of PRP available and the lack of high-level published studies, there is insufficient evidence to conclusively support its clinical use.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.007 | 0.006 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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".