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Record W1540488727 · doi:10.1002/0470867639.ch6

Joint Mechanics in Osteoarthritis

2004· article· en· W1540488727 on OpenAlexaff
Walter Herzog, Andrea L. Clark, David Longino

Bibliographic record

VenueNovartis Foundation symposium · 2004
Typearticle
Languageen
FieldMedicine
TopicOsteoarthritis Treatment and Mechanisms
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsOsteoarthritisCartilageKnee JointArticular cartilageAnterior cruciate ligamentDegeneration (medical)Joint (building)BiomechanicsIn vivoMedicineAnatomyLigamentMechanicsBiomedical engineeringBiologySurgeryPathologyStructural engineeringEngineeringPhysics

Abstract

fetched live from OpenAlex

The primary goal of our research has been to quantify the in vivo loading of normal and osteoarthritic (OA) joints, and to determine the corresponding biological responses. Much of the research in this area has been performed using articular cartilage explants. We feel that, although critically important to our understanding of cartilage mechanics and biology, these experiments may not be directly transferable to interpreting the in vivo joint mechanics and elucidating the detailed mechanisms of onset and progression of OA. Therefore, we have attempted to measure the loading of the knee in freely moving feline and lapine models of OA. We have found that, upon anterior cruciate ligament transection in the cat, knee joints are more flexed, muscle forces are decreased and muscle control patterns are destroyed. Articular cartilage initially becomes thicker, softer and more permeable, resulting in generally increased joint contact areas and decreased peak pressures in the initial stages of joint degeneration compared to control values. Based on our results, we speculate that unloading of the joint (rather than overloading), combined with poor muscular control and weakness, might constitute risks for the onset of joint degeneration.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.006
Threshold uncertainty score0.021

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0020.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0060.001

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.

Opus teacher head0.020
GPT teacher head0.259
Teacher spread0.239 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations25
Published2004
Admission routes1
Has abstractyes

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