Your Custom Quiz

In Low 2025 et al., on machine-learning outcomes in IVDE, which model achieved the highest predictive performance for ambulation recovery?

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Correct. XGBoost had the highest AUC (0.9502) and accuracy (89.1%) in this cohort.
Incorrect. The correct answer is XGBoost.
XGBoost had the highest AUC (0.9502) and accuracy (89.1%) in this cohort.

🔍 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:

  1. T2-weighted to L2 spinal cord signal ratio (lower values predicted better outcome)
  2. Use of fenestration (presence associated with better recovery)
  3. Hospitalization duration
  4. Imaging modality used
  5. Duration of nonambulatory status

Machine learning provided better insight into prognostic factors than traditional statistical methods.

Low

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-2

Article Title: Machine-learning-based prediction of functional recovery in deep-pain-negative dogs after decompressive thoracolumbar hemilaminectomy for acute intervertebral disc extrusion

Journal: Veterinary Surgery

In Danielski 2022 et al., on humero-anconeal incongruity, what dynamic sign was frequently observed during elbow manipulation in dogs with HIF?

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Correct. This sign was observed in 16/21 elbows with HIF during dynamic arthroscopy.
Incorrect. The correct answer is Clunk-like sensation with anconeal engagement into lesion.
This sign was observed in 16/21 elbows with HIF during dynamic arthroscopy.

🔍 Key Findings

  • A novel caudo-medial arthroscopic portal allowed visualization of previously undescribed cartilage lesions on the caudal medial humeral condyle.
  • A consistent focal cartilage lesion (HA lesion) was observed in 100% of elbows with HIF (21/21), but in none of the 31 elbows without HIF.
  • Lesions varied from indentations to full-thickness cartilage loss, typically elliptical and located just medial to the humeral condyle isthmus.
  • A clunk-like sensation and dynamic engagement of the anconeal process into the lesion were observed in 16/21 elbows with HIF during elbow manipulation.
  • In 5/21 elbows, engagement of the anconeal process led to observable widening of the HIF line, suggesting dynamic instability.
  • Findings support a novel concept of humero-anconeal incongruity as a contributor to the pathogenesis of HIF.
  • Spaniel breed was not a confounder—the lesion was only present in elbows with HIF, regardless of breed.
  • The study suggests potential for using arthroscopy as a screening tool for early detection of humero-anconeal incongruity and HIF risk.

Danielski

Veterinary Surgery

1

2022

Humero-anconeal elbow incongruity in spaniel breed dogs with humeral intracondylar fissure: Arthroscopic findings

2022-1-VS-danielski2-3

Article Title: Humero-anconeal elbow incongruity in spaniel breed dogs with humeral intracondylar fissure: Arthroscopic findings

Journal: Veterinary Surgery

In Moreira 2024 et al., what was a key methodological tool used for simulation of all osteotomy types?

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Correct. All models used individualized CT-based reconstructions to simulate osteotomies in silico.
Incorrect. The correct answer is Patient-specific 3D CT reconstructions.
All models used individualized CT-based reconstructions to simulate osteotomies in silico.

2024-1-VS-moreira-5

Article Title:

Journal:

In Janas 2024 et al., on ARC outcomes in cats, what was the most common short-term clinical outcome?

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Correct. 14 of 18 cats had an excellent short-term outcome after surgery.
Incorrect. The correct answer is Excellent.
14 of 18 cats had an excellent short-term outcome after surgery.

🔍 Key Findings:

  • Study design: Retrospective, 20 cats with congenital EHPSS treated with ameroid ring constrictor (ARC).
  • Perioperative complication rate: 25% (5/20), including seizures, blindness, ascites, and one death.
  • Short-term outcomes (18 cats):
    • Excellent: 14
    • Good: 2
    • Poor: 2
  • Long-term outcomes (18 cats):
    • Excellent: 15
    • Good: 1
    • Poor: 2
  • Persistent seizures: Noted in some cats despite normal bile acids and CBC/chemistry.
  • Preoperative blindness resolved in most cats.
  • Mean follow-up duration: Median 8 years.

Janas

Veterinary Surgery

2

2024

Clinical outcomes for 20 cats with congenital extrahepatic portosystemic shunts treated with ameroid constrictor ring attenuation (2002–2020)

2024-2-VS-janas-2

Article Title: Clinical outcomes for 20 cats with congenital extrahepatic portosystemic shunts treated with ameroid constrictor ring attenuation (2002–2020)

Journal: Veterinary Surgery

In Clough 2022 et al., on CBLO-TTT construct testing, what is the clinical implication of combining CBLO and TTT?

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Correct. The study supports the feasibility of combined CBLO-TTT to address both stifle instability and patellar luxation.
Incorrect. The correct answer is It offers a viable option for concurrent MPL and CCL treatment..
The study supports the feasibility of combined CBLO-TTT to address both stifle instability and patellar luxation.

🔍 Key Findings

  • Combined CBLO-TTT did not reduce load to failure compared to CBLO or TTT alone (P = .81 and P = .12, respectively).
  • CBLO-TTT maintains construct strength without significant compromise compared to individual procedures.
  • Most common failure mode in CBLO-TTT was displacement of the tibial crest segment with k-wire pullout and tension band untwisting.
  • No fulcrum effect was seen in CBLO-TTT, unlike TPLO-TTT combinations, likely due to preservation of buttress effect.
  • Patellar ligament avulsion occurred in both CBLO and CBLO-TTT, but not as a clinical concern — possibly artifact from cadaver model.
  • Load-to-failure testing was static and unidirectional, not accounting for cyclic fatigue or in vivo healing.
  • Plate size and saw blade variation were based on clinical realism, introducing potential variability but not affecting outcomes.
  • Study suggests feasibility of simultaneous surgical correction of CCL rupture and MPL using CBLO-TTT in dogs.

Clough

Veterinary Surgery

3

2022

Combined center of rotation of angulation‐based leveling osteotomy and tibial tuberosity transposition: An ex vivo mechanical study

2022-3-VS-clough-5

Article Title: Combined center of rotation of angulation‐based leveling osteotomy and tibial tuberosity transposition: An ex vivo mechanical study

Journal: Veterinary Surgery

In Israel 2022 et al., on cerclage wire in THR, what was the reported incidence of proximal femoral fractures in dogs with cerclage placement?

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Correct. Cerclage wire placement proximal to the lesser trochanter prevented proximal femoral fractures in all 184 hips reviewed.
Incorrect. The correct answer is None.
Cerclage wire placement proximal to the lesser trochanter prevented proximal femoral fractures in all 184 hips reviewed.

🔍 Key Findings

  • No proximal femoral fractures occurred in any of the 184 hips with cerclage wire placement
  • Cerclage wire was well tolerated, with no failures or complications related to the wire
  • Application of a single cerclage wire took <10 minutes, was cost-effective, and required minimal instrumentation
  • 3 postoperative complications (1 fissure, 2 fractures) occurred distal to the cerclage site, near the stem tip, requiring plate/screw fixation
  • All dogs returned to normal activity, and all owners were satisfied with the outcome
  • Cerclage placement location is critical—must be proximal to the lesser trochanter and close to the calcar to resist hoop strain
  • Biomechanical evidence supports that cerclage wires improve resistance to hoop strain and subsidence of cementless stems
  • Press-fit cementless stems may settle, but when supported by cerclage, this does not result in fractures even in undersized implants

Israel

Veterinary Surgery

2

2022

Outcome of canine cementless collared stem total hip replacement with proximal femoral periprosthetic cerclage application: 184 consecutive cases

2022-2-VS-israel-1

Article Title: Outcome of canine cementless collared stem total hip replacement with proximal femoral periprosthetic cerclage application: 184 consecutive cases

Journal: Veterinary Surgery

In Thomsen 2024 et al., on CT accuracy for liver tumors, CT accuracy was NOT significantly influenced by which of the following?

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Correct. No statistical link was found between tumor type and localization accuracy.
Incorrect. The correct answer is Histopathologic diagnosis.
No statistical link was found between tumor type and localization accuracy.

🔍 Key Findings

  • CT localization of liver masses was more accurate by division (88%) than by lobe (74.3%)
  • Inter-radiologist agreement was excellent for division (kappa up to 0.885) and only moderate–good for lobe
  • Quadrate and right lateral lobes had significantly lower localization accuracy compared to left lateral or medial lobes
  • CT localization of the left division was most accurate (90.1%) compared to central (77.1%) and right (88.3%)
  • Portal and hepatic venous phases were equally helpful for localization (each ~30–38% usefulness)
  • No significant associations found between histopathologic diagnosis and localization accuracy
  • Lobe-level CT localization should be interpreted with caution, especially for the quadrate and right lateral lobes
  • Radiologist experience likely influenced accuracy, with the most experienced radiologist performing best

Thomsen

Veterinary Surgery

7

2024

Computed tomography scan accuracy for the prediction of lobe and division of liver tumors by four board-certified radiologists

2024-7-VS-thomsen-5

Article Title: Computed tomography scan accuracy for the prediction of lobe and division of liver tumors by four board-certified radiologists

Journal: Veterinary Surgery

In Healy 2025 et al., on incidental PBBs, what was the prevalence of PBBs in the studied dog population?

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Correct. 30 of 2178 canine CTs had incidental PBBs, a prevalence of 1.37%.
Incorrect. The correct answer is 1.37%.
30 of 2178 canine CTs had incidental PBBs, a prevalence of 1.37%.

🔍 Key Findings

Population: 2,178 canine CTs reviewed retrospectively.
Prevalence: Incidental PBBs found in 1.37% (30/2178).
Outcome: None of the dogs with incidental PBBs developed clinical spontaneous pneumothorax (SP) over a median follow-up of 1255 days.
Significant Associations:

  • Age: Dogs with PBBs were significantly older (median 10.5 yrs vs. 8.2 yrs, p = .001).
  • CT indication: PBBs more likely during neoplastic staging (p = .006).

PBB Characteristics:

  • Total = 60 PBBs (median 1/dog; range 1–7).
  • Location: 35% in left caudal, 31.6% right caudal, only 13.3% in right cranial lobe.
  • Size-based: 25 bullae (>10 mm), 35 blebs (≤10 mm).

Conclusion: Prophylactic resection of incidental PBBs not justified given no observed SP risk in this population.

Healy

Veterinary Surgery

1

2025

Significance of incidentally identified bullae and blebs on thoracic computed tomography and prevalence of subsequent pneumothorax in dogs

2025-1-VS-healy-1

Article Title: Significance of incidentally identified bullae and blebs on thoracic computed tomography and prevalence of subsequent pneumothorax in dogs

Journal: Veterinary Surgery

In Ellis 2024 et al., what conclusion was drawn regarding sclerosis seen on elbow CT in Guide Dogs?

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Correct. Higher HU values (suggestive of sclerosis) in Guide Dogs were not linked to elbow pathology and may reflect breed variation:contentReference[oaicite:3]{index=3}
Incorrect. The correct answer is It should be interpreted with caution.
Higher HU values (suggestive of sclerosis) in Guide Dogs were not linked to elbow pathology and may reflect breed variation:contentReference[oaicite:3]{index=3}

🔍 Key Findings Summary

  • 86 elbows assessed: 32 Guide Dogs, 11 Border Collies
  • Guide Dogs showed significantly higher HU values in:
    • MCP: min (p = 0.022), mean (p < 0.01), max (p < 0.01)
    • Humeral trochlea: mean (p < 0.01), max (p < 0.01)
  • Results imply breed-associated HU variation, not necessarily pathologic sclerosis
  • Relevance: Important to avoid false positives for elbow dysplasia during CT-based breeding screens
  • Good interobserver agreement for mean HU values (ICC ~0.82–0.90)

Ellis

Veterinary and Comparative Orthopedics and Traumatology

3

2024

Comparison of Hounsfield Units within the Humeral Trochlea and Medial Coronoid Process in a Population of Labrador X Golden Retriever Guide Dogs and Border Collies

2024-3-VCOT-ellis-4

Article Title: Comparison of Hounsfield Units within the Humeral Trochlea and Medial Coronoid Process in a Population of Labrador X Golden Retriever Guide Dogs and Border Collies

Journal: Veterinary and Comparative Orthopedics and Traumatology

In Wood 2024 et al., on knot security and locking throws, what was the effect of a single locking throw on holding strength?

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Correct. Adding a single locking throw increased the holding strength for all five knots tested.
Incorrect. The correct answer is Increased in all knots.
Adding a single locking throw increased the holding strength for all five knots tested.

🔍 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.

Wood

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-3

Article Title: 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

Journal: Veterinary Surgery

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