
Your Custom Quiz
In Low 2025 et al., on machine-learning outcomes in IVDE, what was the performance of the XGBoost model when using only preoperative variables?
🔍 Key Findings
The study included 162 deep-pain-negative dogs undergoing decompressive surgery (hemilaminectomy) for acute thoracolumbar intervertebral disc extrusion (IVDE).
Ambulatory recovery occurred in 53.1% of dogs (86/162).
The best performing machine-learning model was XGBoost, with an AUC of 0.9502 and accuracy of 89.1%, outperforming Ridge, AdaBoost, and Naive Bayes models.
Preoperative-only XGBoost models were less accurate, with AUC dropping to 0.8271 and accuracy to 71.9%.
Top predictive features (by SHAP analysis) included:
- T2-weighted to L2 spinal cord signal ratio (lower values predicted better outcome)
- Use of fenestration (presence associated with better recovery)
- Hospitalization duration
- Imaging modality used
- Duration of nonambulatory status
Machine learning provided better insight into prognostic factors than traditional statistical methods.
Veterinary Surgery
4
2025
Machine-learning-based prediction of functional recovery in deep-pain-negative dogs after decompressive thoracolumbar hemilaminectomy for acute intervertebral disc extrusion
2025-4-VS-low-5
In Jeong 2025 et al., on contoured saw guide vs jig, which statement is correct regarding *osteotomy torsion*?
🔍 Key Findings
- TPLO with the contoured saw guide achieved more accurate osteotomy angles for both inclination and torsion in bone models and cadaveric limbs (p < .05).
- Medial cortical damage was significantly lower with the contoured guide (247 vs. 1866 pixels in bone models; p < .001).
- No significant difference in eccentricity (distance between actual and intended osteotomy center) was found between groups.
- Postoperative tibial plateau angle (TPA) was similar between groups (6.4° vs. 7.6°; p = .15), though both were slightly higher than the target of 6°.
- Deviation in medial mechanical proximal tibial angle (mMPTA) showed no significant group difference; valgus deformity occurred in both.
- Osteotomy and device application times were similar between the contoured guide and jig-assisted TPLO.
- The contoured guide eliminated the need for proximal jig pin, potentially reducing intra-articular pin risk.
- The guide's multiple pin fixation system improved stability and alignment, supporting safer osteotomy on curved tibial surfaces.
Veterinary Surgery
7
2025
Evaluation of a contoured saw guide for tibial plateau leveling osteotomy in dogs
2025-7-VS-jeong-4
In Sabol 2024 et al., what was the narrowest documented corridor width in thoracic vertebrae?
🔍 Key Findings Summary
- Evaluated ideal dorsolateral implant trajectories in T1–T13 using CT in 30 dogs across five weight classes.
- Corridor widths were narrowest in the mid-thoracic vertebrae (as little as 1.8 mm) and increased cranially and caudally.
- Allowable deviation angles (ADA) were often very small (as little as 3°), indicating high risk for canal or thoracic structure breach.
- Distances to critical structures (lungs, aorta, subclavian artery, azygos vein) were often <1 mm, even in large dogs.
- Data suggest extreme caution and precision are needed for thoracic vertebral implant placement and support use of navigation or 3D-printed guides.
Veterinary and Comparative Orthopedics and Traumatology
2
2024
Implantation Corridors in Canine Thoracic Vertebrae: A Morphometric Study in Dogs of Varying Sizes
2024-2-VCOT-sabol-1
In Scheuermann 2023 et al., on canine femoral MIPO, what was the most significant drawback observed with the use of the FRS?
🔍 Key Findings
- Precontoured plates using 3D-printed femoral models achieved near-anatomic alignment in all cadaver limbs.
- Fracture reduction system (FRS) required significantly fewer fluoroscopy images than intramedullary pin (IMP) methods (7 vs 26, P = .001).
- Despite longer surgical time (43 vs 29 minutes, P = .011), FRS showed equally accurate or better alignment compared to IMP.
- Femoral length, frontal, sagittal, and axial alignment were all within near-anatomic thresholds (<10 mm or <5° deviation) in both groups.
- FRS was associated with more consistent length maintenance, with IMP showing a median shortening of 2.3 mm (P = .03).
- Axial plane deviation was statistically different in the FRS group (P = .04), but still clinically acceptable.
- Study highlights potential for custom 3D-printed guides to reduce radiation exposure and improve precision in MIPO procedures.
- Authors caution that FRS was time-consuming and cumbersome, suggesting design refinements needed for clinical use.
Veterinary Surgery
6
2023
Minimally invasive plate osteosynthesis of femoral fractures with 3D‐printed bone models and custom surgical guides: A cadaveric study in dogs
2023-6-VS-scheuermann-2
In Turner 2025 et al., on TPA changes after SH-1/2 fracture repair, what surgical feature may contribute to the dynamic reduction in TPA over time?
🔍 Key Findings
- TPA decreased significantly from preoperative to follow-up (mean 5.89°; p < 0.001), and from immediate postoperative to follow-up (mean 2.2°; p = 0.018)
- Use of tension band in addition to K-wires did not significantly improve TPA reduction compared to K-wires alone
- Cranial K-wire positioning may attenuate growth at the cranial tibial physis, allowing relative caudal growth to reduce TPA over time
- Dynamic TPA reduction may reduce risk of cranial cruciate ligament rupture even when initial TPA is high
- Small breeds (e.g., French Bulldogs) were overrepresented; further research is needed in larger breeds with more growth potential
- Surgical reduction is difficult, but perfect alignment may not be essential if TPA reduces postoperatively
- Radiographic TPA measurement was reliably performed with low interobserver variability
- K-wire removal at 3–8 weeks may facilitate continued growth in growing dogs
Veterinary and Comparative Orthopaedics and Traumatology
5
2025
Tibial Plateau Angle Changes following Repair of Salter–Harris Type 1 and 2 Fractures in Dogs
2025-5-VCOT-turner-3
In Banse 2022 et al., on skill retention methods, what is a key consideration when using massed instruction in veterinary surgical curricula?
🔍 Key Findings
- Spaced instruction (SI) improved immediate performance on the first learned skill compared to massed instruction (MI) in both LSU and LMU cohorts.
- Cognitive load was higher in MI students at LMU, particularly in physical demand, effort, and frustration, while LSU showed no significant cognitive load differences.
- Skill performance differences disappeared after 2 weeks of supervised practice, regardless of instructional format.
- Time to complete skills improved over time, but this did not always correlate with improved checklist or global rating scores.
- Intrinsic cognitive load increased when teaching more complex or related surgical tasks in the same session.
- Initial skill complexity and prior exposure may influence effectiveness of spaced vs massed instruction.
- Supervised practice sessions are critical to eliminate initial skill disparities between instructional methods.
- Massed instruction may still be acceptable if followed by scheduled practice opportunities.
Veterinary Surgery
7
2022
Teaching veterinary surgical skills: Comparison of massed versus spaced instruction
2022-7-VS-banse-5
In Otero Balda 2025 et al., on Short-term outcomes after feline cPSS surgery, what was the survival rate in cats pretreated with levetiracetam following the LEV1 protocol?
🔍 Key Findings
- 78% of cats that developed postattenuation neurologic signs (PANS) after congenital portosystemic shunt (cPSS) surgery survived to 30 days.
- Postattenuation seizures (PAS) were associated with significantly decreased 30-day survival (50% vs. 78%; OR: 0.015, p = .005).
- Treatment of PANS with propofol was a negative prognostic factor (OR: 0.112, p = .0008).
- Generalized PAS accounted for most seizure cases and were more frequently fatal than focal or unknown-type seizures.
- Pretreatment with levetiracetam (LEV1 protocol) showed a trend toward improved survival (100% vs. 60.6% in untreated cats), though not statistically significant (p = .06).
- Shunt morphology, method of attenuation, and study period (early vs. late) were not significantly associated with 30-day survival.
- Electrolyte, glucose, and ammonia abnormalities were not strongly linked to survival outcomes in this study.
- Majority of PAS-related deaths were due to uncontrolled generalized seizures or euthanasia because of severity.
Veterinary Surgery
5
2025
Prognostic factors for short‐term survival of cats that experienced postattenuation neurologic signs after surgical attenuation of single congenital portosystemic shunts
2025-5-VS-otero-5
In Scott 2023 et al., on thoracoscopic-assisted lung lobectomy, which **surgical device** was associated with **shorter median surgery time**?
🔍 Key Findings
- TA lung lobectomy was feasible in dogs ≥3 kg, including those with lesions up to 10 cm.
- 12 intraoperative complications (40%) occurred, with 6 dogs (20%) converted to open thoracotomy, mainly due to adhesions or inability to isolate lobes.
- Postoperative complications occurred in 8 dogs (27%), most were mild (63%), and only 1 death (3%) was reported.
- Median hospitalization was 47 hours; 29/30 dogs were discharged successfully.
- One-lung ventilation (OLV) was attempted in 7 dogs but successfully maintained in only 4.
- Linear staplers had shorter surgery times (median 57.5 min) than endoscopic staplers (80 min).
- Histopathology confirmed neoplasia in 77% of cases, most commonly papillary and bronchioalveolar carcinoma.
- TA lobectomy allows MIS in smaller dogs or with large lesions, avoiding need for full thoracotomy or complex anesthesia/stapling.
Veterinary Surgery
1
2023
Complications and outcomes of thoracoscopic-assisted lung lobectomy in dogs
2023-1-VS-scott-3
In Radke 2022 et al., on outcome measure validation, which of the following OROMs demonstrated the **most rigorous development process** according to COSMIN criteria?
🔍 Key Findings
- CBPI, COI, and LOAD are recommended for assessing canine osteoarthritis based on COSMIN criteria.
- COI scored highest in development rigor and evidence quality among evaluated OROMs.
- Internal consistency, reliability, and responsiveness were commonly validated, though no OROMs reported measurement error.
- LOAD was considered formative, and internal consistency assessment was deemed unnecessary.
- CBPI and COI showed sufficient internal consistency, but CBPI’s factor structure was inconsistent across studies.
- All 6 evaluated OROMs (CBPI, COI, LOAD, BHSII, HCPI, HVAS) were quick to complete (under 5 min).
- Three tools—BHSII, HCPI, HVAS—need more evidence before recommendation; only CBPI, COI, and LOAD are Category A (recommended).
- Future studies should assess interpretability, including measurement error and clinically meaningful change scores (MIC, SDC).
Veterinary Surgery
2
2022
Evidence‐based evaluation of owner‐reported outcome measures for canine orthopedic care – a COSMIN evaluation of 6 instruments
2022-2-VS-radke-1
In Guénégo 2025 et al., on AMA-based CCWO, which combination was key to minimizing SSIs in AMA-based CCWO?
🔍 Key Findings
- AMA-based CCWO realigned the anatomical and mechanical axes in 82% of dogs >50 kg, with postoperative AMA angle of 0° in most cases.
- Surgical site infection (SSI) rate was only 0.5%, markedly lower than TPLO-reported rates in similar populations (up to 37.5%).
- All osteotomies achieved Grade 4 healing by 8 weeks, with no implant failures.
- AMA-based planning based on preoperative AMA and TPA allowed for better correction of proximal tibial angulation compared to TPLO in large dogs.
- Use of a double locking plate (DLP) fixation and Robert Jones bandage (RJB) contributed to improved mechanical stability and infection prevention.
- Dogs with AMA angle >3.4° (hyper-CCAPT) were 38% of the cohort, supporting AMA as a critical metric in planning.
- Postoperative alignment of the AA and MA was more consistently achieved when preoperative AMA was >2.4°, confirming suitability of AMA-based CCWO for severe angulation.
- Most infections in TPLOs occur within 15 days, but RJB plus antibiotics in this study appeared protective, suggesting benefit for early-phase SSI prevention.
Veterinary and Comparative Orthopaedics and Traumatology
3
2025
Modified Cranial Closing Wedge Osteotomy (AMA-Based CCWO) to Treat Cranial Cruciate Ligament Deficient Stifle in 204 Dogs Over 50 Kg
2025-3-VCOT-guenego-3
Quiz Results
You answered 7 out of 10 questions correctly
Key Findings
