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Record W2143269401 · doi:10.1001/jamafacial.2013.1416

Precise Anatomical Study of Rhinoplasty

2013· article· en· W2143269401 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJAMA Facial Plastic Surgery · 2013
Typearticle
Languageen
FieldMedicine
TopicNasal Surgery and Airway Studies
Canadian institutionsLakeshore General HospitalHôpital Maisonneuve-Rosemont
Fundersnot available
KeywordsCadaveric spasmRhinoplastyMedicineRotation (mathematics)AnatomyNoseProjection (relational algebra)SurgeryOrthodonticsMathematicsGeometry

Abstract

fetched live from OpenAlex

IMPORTANCE: The prediction of nasal tip position in terms of projection, rotation, and length is a major challenge in rhinoplasty. Studies using preoperative and postoperative photographs lack accuracy owing to variable position, and computer-simulated models lack clinical applicability. OBJECTIVES: (1) To describe an accurate and reproducible technique to study the effect of surgical manipulations on the nasal tip; and (2) to describe the effect on the nasal tip cartilages of the lateral crural steal (LCS). DESIGN, SETTING, AND PARTICIPANTS: Cadaveric study in a tertiary hospital center using 10 cadaveric specimens. INTERVENTIONS: Heads were placed in a Mayfield head holder, and a 12.2-megapixel camera was fixed on a tripod in a perfectly still position and focused on the surgical field during all surgical manipulations. An external rhinoplasty approach was performed for all specimens, and a 4-mm LCS was achieved. MAIN OUTCOMES AND MEASURES: Measures include tip projection, tip rotation, and nasal length using preoperative and postoperative photographs. RESULTS: Our method was successfully performed on all specimens: LCS resulted in a significant mean increase in projection using the Goode ratio (mean, 0.05; P = .005) and rotation (mean, 13.2°; P = .005). However, absolute tip projection variation was inconsistent, ranging from -1.0 mm to 0.6 mm. Nasal length was significantly shortened in all cases (mean, 1.3 mm, P = .005). CONCLUSIONS AND RELEVANCE: We describe the first technique for precise anatomical study of tip position in rhinoplasty on cadaveric specimens. This technique was successfully applied to 10 consecutive nasal tips. We have shown a significant increase in projection using the Goode ratio and rotation with LCS. However, the effect on absolute projection is inconsistent. LEVEL OF EVIDENCE: NA.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.004
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.053
Threshold uncertainty score0.770

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.004
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.024
GPT teacher head0.254
Teacher spread0.230 · 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