
Your Custom Quiz
In Ibrahim 2022 et al., on scrotal arterial supply, what was the observed consequence when scrotal flaps were based on cranial supply only?
🔍 Key Findings
- Dorsal scrotal arteries, branching from the ventral perineal arteries, are the dominant arterial supply to the scrotum in dogs.
- The ventral scrotal arteries, arising from the external pudendal arteries, perfused only the cranial scrotal border and were inconsistently present or absent in some dogs.
- A scrotal flap based on the dorsal scrotal arteries showed strong perfusion and may be a viable axial pattern flap.
- Perfusion was consistent across fresh and frozen cadavers, showing no difference due to preservation method.
- Poor flap survival (27%) occurred when based on cranial supply alone (i.e., ventral scrotal arteries), confirming importance of preserving caudal supply.
- There are anastomoses between dorsal and ventral scrotal arteries, offering collateral flow but insufficient alone for complete perfusion.
- Scrotal flaps based on the caudal pedicle may be applicable for reconstruction of proximal medial/lateral thigh wounds.
- Proposed flap requires careful preservation of ventral perineal arteries, ideally designed 2.5–3 cm lateral to midline in large dogs.
Veterinary Surgery
4
2022
Arterial supply to the scrotum: A cadaveric angiographic study
2022-4-VS-ibrahim-2
In Dalton 2023 et al., In Minimally invasive acetabular fracture repair in dogs, what was the clinical outcome of the Chihuahua case treated with minimally invasive acetabular repair?
🔍 Key Findings
- Feasibility study in 5 canine cadavers plus 1 clinical case (Chihuahua, 5.5 kg).
- Technique used two small approaches (caudal and craniolateral) connected with an epiperiosteal tunnel.
- Plates were precontoured on mirrored 3D-printed hemipelves to improve fit and reduce intraoperative bending.
- Cadaver outcomes: fracture gap <2 mm, step defect <1 mm, pelvic angulation <5°.
- Sciatic nerve injury was minimal: 1/5 cadavers had a mild indentation; others had no gross injury.
- Median total surgical time: ~46 minutes in cadavers; incisions ~5 cm.
- Clinical Chihuahua case: weight-bearing within 24 hrs, radiographic union at 3 months; one screw fractured but no adverse effect.
- Authors conclude: MIAF with 3D printing is feasible and accurate, but requires further evaluation before routine use.
Veterinary Surgery
7
2023
Minimally invasive repair of acetabular fractures in dogs: Ex vivo feasibility study and case report
2023-7-VS-dalton-5
In Wood 2024 et al., on knot security and locking throws, which knot had the poorest performance, especially without a locking throw?
🔍 Key Findings
- Adding a single locking throw significantly increased holding security for specific knots, including the surgeon's throw (p = .0001) and square throw (p = .0002).
- For the Miller's throw (p = .166) and strangle throw (p = .808), no significant improvement was observed with a locking throw.
- After locking throw addition, all five knots leaked at similar pressures (p = .5233), and these pressures exceeded physiologic arterial pressures.
- Surgeon's throw without a locking throw had the lowest leak pressure (62.5 ± 46.2 mm Hg), below physiologic arterial values.
- The square throw without locking also leaked below physiologic pressures (148.7 ± 109.4 mm Hg), though it outperformed the surgeon's throw.
- Miller’s and strangle throws performed significantly better than square or surgeon’s throws without locking, achieving leak pressures >200 mm Hg.
- All knots used 2-0 polyglyconate monofilament (Maxon); no comparisons across suture types or sizes were performed.
- Authors concluded that correct tensioning and locking throw addition are key to safe vascular ligation. Miller’s, strangle, or slip knots are preferred for challenging surgical fields.
Veterinary Surgery
4
2024
Influence of a single locking throw on the in vitro holding security of five friction knots using two monofilament suture materials in a canine model
2024-4-VS-wood-5
In Muroi 2025 et al., on refracture risk, what bone quality indicator was significantly lower in dogs that refractured **after plate removal**?
🔍 Key Findings
- Refracture occurred in 5.5% of limbs, with higher incidence in the plate removal group (12.5%) vs. non-removal (3.5%).
- In the non-plate removal group, refractures occurred at the most distal screw site, linked to greater screw position change during growth (OR 1.79, p=0.04).
- Screw-to-bone diameter ratio (SBDR) >0.4 was a significant risk factor for refracture in the plate retention group.
- In the plate removal group, refractures occurred at the original fracture site, associated with lower pixel value ratio (bone mineral density) and reduced radial thickness.
- Implant-induced osteoporosis (IIO) beneath the plate likely contributed to refracture risk after plate removal.
- Younger age at fracture (<6 months) was associated with higher refracture risk due to ongoing radial growth and shifting screw position.
- No significant association was found between refracture and plate type (locking vs conventional), fixation method, or ulnar union.
- Recommendations include careful SBDR sizing, motion restriction, and cautious plate removal decisions in growing dogs.
Veterinary and Comparative Orthopaedics and Traumatology
2
2025
A Retrospective Study of Risk Factors Associated with Refracture after Repair of Radial–Ulnar Fractures in Small-Breed Dogs
2025-2-VCOT-muroi-4
In Buote 2023 et al., on 3D-printed cannulas in feline laparoscopy, what was the effect on mean surgical time?
🔍 Key Findings
- 3D-printed cannulas (3DPCs) reduced mean surgical time significantly in cadaveric procedures (125.6 vs 95.2 min, p = 0.03).
- Cannula pullout events decreased from a mean of 10 to 2.2 per procedure when using only 3DPCs (p = 0.03).
- Instrument collisions were significantly fewer with 3DPCs (6.8 vs 2.6 collisions, p = 0.03).
- Live patients experienced no postoperative complications, including no incision site infections or discomfort.
- Initial versions of 3DPCs had minor issues, including valve leakage and looser trocar fit, requiring surgical workarounds.
- Customization of cannula shaft length (3 cm vs standard 5–8.3 cm) improved working space and reduced instrument interference.
- Production cost was under $5 per cannula, suggesting 3DPCs may be a cost-effective and reusable alternative for small patients.
- Study supports broader use of 3DPCs in laparoscopic procedures requiring long-jawed instruments or intricate tissue handling.
Veterinary Surgery
6
2023
3D printed cannulas for use in laparoscopic surgery in feline patients: A cadaveric study and case series
2023-6-VS-buote-1
In Geier 2022 et al., on smoke evacuation in TPLO, which of the following statements best reflects the effect of electrosurgery on ultrafine particle levels during surgery?
🔍 Key Findings
- Use of smoke evacuators reduced ultrafine particle concentrations by 56.4% during approach to the proximal tibia for TPLO in dogs.
- Mean intraoperative particle concentrations were significantly higher in surgeries without smoke evacuation (1352 ppc vs. 763 ppc, P < .0001).
- Maximum particle concentrations were six times higher without smoke evacuation (62,450 ppc vs. 10,100 ppc, P < .0001).
- Particle counts increased above baseline regardless of evacuator use, confirming electrosurgery contributes substantially to airborne particles.
- Surgeons noted reduced odor and health concerns when using the smoke evacuator, despite initial visibility limitations due to pencil attachment.
- Standard surgical masks do not protect against ultrafine particles, underscoring the importance of smoke mitigation systems.
- The smoke-evacuation unit did not eliminate all ultrafine particles, suggesting optimization (e.g., higher power setting) may be beneficial.
- This is the first clinical veterinary study to measure surgical smoke reduction using evacuators during TPLO.
Veterinary Surgery
5
2022
The effect of a smoke‐evacuation unit on ultrafine particle concentrations in the operating room during approach to the proximal tibia for tibial plateau-leveling osteotomy surgery in dogs
2022-5-VS-geier-2
In Cruciani 2022 et al., on feline pancreaticoduodenostomy, what complication did *not* occur during the follow-up period?
🔍 Key Findings
- Left pancreaticoduodenostomy successfully restored digestive continuity after right lobe and body pancreatectomy in a cat.
- No clinical signs of exocrine or endocrine insufficiency were observed postoperatively up to 225 days.
- Histopathology confirmed chronic pancreatitis with abscess formation and reactive lymphadenopathy.
- No postoperative pancreatitis developed, based on imaging and normal feline pancreatic lipase levels.
- Progressive focal ampulla-like dilation of the pancreatic duct occurred near the anastomosis without clinical signs.
- The cat maintained weight and improved clinically for several months post-op, indicating satisfactory outcomes.
- Surgical technique involved end-to-side anastomosis between the left pancreatic duct and duodenum.
- Ultimately, the cat was euthanized due to disseminated carcinoma, presumed unrelated to the pancreatic surgery.
Veterinary Surgery
8
2022
Left pancreaticoduodenostomy after removal of the right lobe and the head of the pancreas in a cat
2022-8-VS-cruciani-4
In Parlier 2024 et al., on insufflation effects on portal pressure in dogs, what insufflation pressure was predicted to induce portal hypertension (>15 mmHg)?
🔍 Key Findings
- Portal pressure increased proportionally with insufflation pressure: 38% at 6 mmHg, 95% at 10 mmHg, and 175% at 14 mmHg.
- Exponential model: average increase of 7.45% per mmHg of insufflation pressure (CI: 4.7–10.2%).
- No systemic hemodynamic adverse effects were observed; MAP remained >60 mmHg throughout.
- Portal hypertension threshold (15 mmHg) predicted at ~6.4 mmHg insufflation pressure.
- No statistical impact from patient weight, pressure-to-weight ratio, or order of insufflation rounds.
- Measurement technique was feasible and safe, with only minor challenges (e.g., catheter kinking).
- The study supports use of the lowest insufflation pressure needed for visualization to avoid portal hypertension.
- Baseline portal pressures returned after desufflation, supporting comparison pre- and post-attenuation.
Veterinary Surgery
4
2024
Prospective, randomized, clinical trial on the effects of laparoscopic insufflation pressures on portal pressures in dogs
2024-4-VS-parlier-2
In Whyte 2025 et al., on cannulated screw fixation, what factor was significantly associated with an increased risk of screw breakage?
🔍 Key Findings
Study focus: Outcomes of cannulated screw fixation in unicondylar humeral condylar fractures (UHCF) in dogs.
Clinical union rate: 89%
Overall complication rate: 36%
- Major complication: Most common was screw breakage
Significant risk factor for screw breakage:
- Body weight >20 kg (statistically significant)
Breed distribution:
- Spaniels, especially English Springer Spaniels, were most common
No mention of plate augmentation as standard in this cohort
Veterinary Surgery
2
2025
Use of cannulated screws in the treatment of unicondylar humeral condylar fractures in dogs
2025-2-VS-whyte-4
In Monnet 2023 et al., on barbed vs conventional suture in vesicourethral anastomosis (VUA), despite reduced suturing time, what is a clinical limitation of using unidirectional barbed suture for VUA?
🔍 Key Findings
- Leakage pressure was not significantly different between unidirectional barbed suture (UBS) and conventional (C) suture groups (p = .236).
- UBS group had a 28% lower median leakage pressure than the C group (8.6 mmHg vs. 11.7 mmHg), suggesting higher biological risk of leakage.
- UBS significantly reduced suturing time (median 12.7 vs. 17.3 minutes; p < .0002).
- Fewer suture bites were needed in the UBS group (median 14 vs. 19; p = .012).
- No suture breakage or urethral narrowing occurred in either group.
- Leakage site distribution (ventral vs lateral) was similar between groups; no dorsal leaks noted.
- Leakage occurred as low as 5 mmHg in UBS group, indicating potential for postoperative extravasation.
- UBS may aid intracorporeal suturing in minimally invasive prostatectomy, but catheterization remains necessary postoperatively.
Veterinary Surgery
5
2023
Influence of conventional versus unidirectional barbed suture on leakage pressures in canine vesicourethral anastomosis: An ex-vivo study
2023-5-VS-monnet-5
Quiz Results
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Key Findings
