Ex Vivo Biomechanical Comparison of 4 Suture Materials for Laparoscopic Bladder Closure in the Horse
Bibliographic record
Abstract
OBJECTIVE: To compare a knotless, barbed suture to standard suture using laparoscopic suturing methods in an ex vivo model of equine bladder repair. STUDY DESIGN: Cadaveric study. SAMPLE POPULATION: Equine cadaver bladders (n=42). METHODS: A 5-cm incision was created and repaired in a laparoscopic training box with 4 different suture materials. Groups 1 and 2 used 2-0 poliglecaprone and 2-0 glycomer knotless, barbed suture, respectively, placed using laparoscopic instruments. Groups 3 and 4 used 0 and 2-0 polyglyconate knotless, barbed suture, respectively, placed using an automated laparoscopic suturing device. All groups used a double-layer inverting pattern. Time for suture placement was recorded. Bladders were inflated with water and bursting strength pressures recorded, including a control group of intact bladders. Statistical analysis using a linear model and taking into account the unequal variances was followed by a post-hoc Tukey's test. Significance was set at P<.05. RESULTS: Bursting strength did not vary significantly between treatment groups, but was significantly decreased compared to the control group (P<.001). Time to place the sutures with the 2 automated suture device groups (groups 3 and 4) was significantly faster than those in which the suture was placed using laparoscopic needle holders and forceps (groups 1 and 2; P=.001). CONCLUSION: Knotless, barbed suture may be a viable alternative to standard suture material for laparoscopic closure of the urinary bladder in horses. Further cyclic and in vivo testing should be performed before use in clinical cases.
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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 | 0.003 | 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 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".