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In Clarke 2022 et al., on nasopharyngeal collapse severity, which diagnostic modality was used to quantify pharyngeal collapse in awake dogs?

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Correct. Fluoroscopy was used to measure nasopharyngeal dimensions during respiration.
Incorrect. The correct answer is Fluoroscopy.
Fluoroscopy was used to measure nasopharyngeal dimensions during respiration.

🔍 Key Findings

  • Nasopharyngeal collapse was significantly more severe in brachycephalic dogs (median 65%) than in nonbrachycephalic controls (median 10%) (p = .0001).
  • Postoperative fluoroscopy showed no significant improvement in nasopharyngeal collapse (p = .0505), despite reported clinical improvement.
  • 70% of brachycephalic dogs had ≥50% collapse; 26% had 100% collapse preoperatively.
  • All owners of surgical cases reported clinical improvement, including reduced respiratory noise and improved exercise tolerance.
  • Surgical techniques used included combinations of alaplasty, staphylectomy, sacculectomy, and tonsillectomy.
  • Improvement in nasopharyngeal dimensions was variable, with some dogs improving ≥45%, some worsening, and one dog showing a 100% increase post-op.
  • Pharyngeal collapse may not be solely anatomical; neuromuscular dysfunction (e.g., reduced pharyngeal dilator muscle function) may contribute.
  • Current surgical techniques may not address functional airway abnormalities, suggesting a need for multimodal or targeted interventions.

Clarke

Veterinary Surgery

6

2022

Severity of nasopharyngeal collapse before and after corrective upper airway surgery in brachycephalic dogs

2022-6-VS-clarke-2

Article Title: Severity of nasopharyngeal collapse before and after corrective upper airway surgery in brachycephalic dogs

Journal: Veterinary Surgery

In Sullivan 2025 et al., on TTT stabilization methods, which stabilization method showed significantly different failure force or stiffness?

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Correct. All methods showed comparable failure force and stiffness.
Incorrect. The correct answer is No significant differences were found.
All methods showed comparable failure force and stiffness.

🔍 Key Findings

  • Spacer pin fixation showed no difference in failure force or stiffness compared to tension band wire (TBW) or 2-pin techniques.
  • All constructs failed under loads >1000 N, exceeding estimated peak quadriceps force in dogs during walking (~240 N).
  • Patellar ligament failure was the most common mode of failure across all groups (5–8 samples per group).
  • Distal tibial crest fractures were seen only in 2-pin and spacer pin groups, not in TBW group, suggesting TBW may protect against crest failure.
  • No failures occurred at pin tracts, possibly due to pin placement within patellar ligament footprint.
  • Spacer pin technique avoids placing pins through the tuberosity, potentially reducing risks of soft tissue complications like tendinopathy or irritation.
  • Use of partial osteotomy with robust distal crest may substitute for TBW without compromising initial mechanical strength.
  • Further in vivo or cyclic loading studies are required, as this cadaveric study tested only acute tensile failure.

Sullivan

Veterinary and Comparative Orthopaedics and Traumatology

3

2025

Biomechanical Comparison of Spacer Pin Fixation to Two Established Methods of Tibial Tuberosity Transposition Stabilization in Dogs

2025-3-VCOT-sullivan-1

Article Title: Biomechanical Comparison of Spacer Pin Fixation to Two Established Methods of Tibial Tuberosity Transposition Stabilization in Dogs

Journal: Veterinary and Comparative Orthopaedics and Traumatology

In Trefny 2025 et al., on locking plate biomechanics, when did transcortical contact occur in long working length constructs?

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Correct. Transcortical contact occurred in long constructs around 150–155 N in tension bending.
Incorrect. The correct answer is Between 150–155 N.
Transcortical contact occurred in long constructs around 150–155 N in tension bending.

🔍 Key Findings

  • Short working length constructs had significantly higher stiffness and lower strain than long constructs in compression bending (p = 0.0172).
  • In tension bending, short constructs also had higher precontact stiffness and lower strain, but this reversed after transcortical contact (~150 N).
  • Transcortical contact increased stiffness only in long constructs, producing a bilinear load-displacement curve.
  • Postcontact stiffness was higher in long constructs, but this may not reflect clinical benefit due to risks of high interfragmentary strain.
  • Short working length reduced strain at multiple ROIs under both loading conditions, including over fracture gap (Tables 1–3).
  • Increased working length promoted stress concentration and deformation, especially in compression bending.
  • In vitro benefits of long constructs (via contact stability) may not translate to healing, as repetitive loading could increase plate strain and bone resorption.
  • Plate strain was effectively mapped using 3D digital image correlation, confirming regional strain differences between configurations.

Trefny

Veterinary and Comparative Orthopaedics and Traumatology

3

2025

Effect of Plate Screw Configuration on Construct Stiffness and Plate Strain in a Synthetic Short Fragment Small Gap Fracture Model Stabilized with a 12-Hole 3.5-mm Locking Compression Plate

2025-3-VCOT-trefny-2

Article Title: Effect of Plate Screw Configuration on Construct Stiffness and Plate Strain in a Synthetic Short Fragment Small Gap Fracture Model Stabilized with a 12-Hole 3.5-mm Locking Compression Plate

Journal: Veterinary and Comparative Orthopaedics and Traumatology

In Planchamp 2022 et al., on imaging-based AAI diagnosis, which measurement had the highest diagnostic accuracy in both head positions?

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Correct. The VCI had 100% sensitivity and >94% specificity in both flexed and extended positions, with AUCs near 1.0.
Incorrect. The correct answer is Ventral compression index (VCI).
The VCI had 100% sensitivity and >94% specificity in both flexed and extended positions, with AUCs near 1.0.

🔍 Key Findings

  • Ventral Compression Index (VCI) ≥0.16 (extension) or ≥0.2 (flexion) was diagnostic for AAI with 100% sensitivity and >94% specificity
  • VCI had the highest diagnostic accuracy among all measured variables (AUC > 0.99)
  • C1-C2 overlap ≤2.7 mm (extension) or ≤1.8 mm (flexion) also diagnostic for AAI (sensitivity 84–96%, specificity 81–90%)
  • C1-C2 angle ≥176.9° (extension) or ≥187.4° (flexion) had high sensitivity and specificity (~95%)
  • Basion-dens interval ≥5.9 mm (extension) or ≥3.0 mm (flexion) provided moderate diagnostic accuracy
  • Cranial translation ratio (CTR) ≥0.18 classified dogs as potentially unstable (sensitivity 90%, specificity 78%)
  • VCI ≥0.23 reliably differentiated AAI from potentially unstable cases (sensitivity 94%, specificity 94%)
  • DALR ≤0.24 had high specificity (100%) but low sensitivity for AAI diagnosis

Planchamp

Veterinary Surgery

4

2022

Determination of cutoff values on computed tomography and magnetic resonance images for the diagnosis of atlantoaxial instability in small-breed dogs

2022-4-VS-planchamp-1

Article Title: Determination of cutoff values on computed tomography and magnetic resonance images for the diagnosis of atlantoaxial instability in small-breed dogs

Journal: Veterinary Surgery

In Adrian 2024 et al., on feline pelvic fracture stabilization, how did the median sacral index change from immediate postop to follow-up?

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Correct. Pelvic canal narrowing led to a median sacral index decrease of 5.7% at follow-up.
Incorrect. The correct answer is Decreased by ~5.7%.
Pelvic canal narrowing led to a median sacral index decrease of 5.7% at follow-up.

🔍 Key Findings

  • 20 cats with pelvic fractures treated with SOP plates and cortical screws
  • Full function reported in all patients per FMPI follow-up
  • Screw loosening in 3/20 SOP cases; implant removal in 3 cats
  • Median sacral index decrease at follow-up: 5.7%; mostly mild narrowing
  • Complications: 5 major (3 SOP removals, 2 trochanter osteotomy issues); 20 minor
  • SOP plate shown feasible even in challenging configurations; good functional outcomes

Adrian

Veterinary and Comparative Orthopedics and Traumatology

1

2024

Use of Locking Plates Fixed with Cortical Screws for Pelvic Fracture Repair in 20 Cats

2024-1-VCOT-adrian-3

Article Title: Use of Locking Plates Fixed with Cortical Screws for Pelvic Fracture Repair in 20 Cats

Journal: Veterinary and Comparative Orthopedics and Traumatology

In Danielski 2025 et al., on PUO complication reduction, how did **IM pin breakage** affect clinical outcomes?

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Correct. Although breakage occurred in 11.8% of cases, no healing delays were observed.
Incorrect. The correct answer is It had no effect on bone healing.
Although breakage occurred in 11.8% of cases, no healing delays were observed.

🔍 Key Findings

  • Combined intramedullary (IM) pin and rhBMP-2 use resulted in a low complication rate (7.4%) after proximal ulnar osteotomy (PUO).
  • Major complications occurred in 5.3% of cases (4 infections, 1 pin breakage with ulnar tilt requiring revision).
  • Minor complications occurred in 2.1% of cases (seroma, delayed union).
  • No cases of non-union were observed; 98.9% of limbs achieved radiographic healing by 6 weeks.
  • IM pin breakage was noted in 11.8% of limbs but did not affect healing outcomes.
  • Chondrodystrophic breeds made up 64.8% of the cohort and tolerated the procedure well.
  • Compared to prior studies, complication rates were substantially reduced with this technique (prior major: 13.9%; this study: 5.3%).
  • The use of rhBMP-2 likely enhanced early bone healing and provided biologic support, particularly important in breeds at higher risk of complications.

Danielski

Veterinary Surgery

6

2025

Impact of intramedullary pinning and recombinant human bone morphogenetic protein‐2 on postoperative complications after proximal ulnar osteotomy in dogs

2025-6-VS-danielski-4

Article Title: Impact of intramedullary pinning and recombinant human bone morphogenetic protein‐2 on postoperative complications after proximal ulnar osteotomy in dogs

Journal: Veterinary Surgery

In Clarke 2022 et al., on nasopharyngeal collapse severity, which median percentage collapse was found in brachycephalic dogs preoperatively?

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Oops! Something went wrong while submitting the form.
Correct. Median preoperative nasopharyngeal collapse in brachycephalic dogs was 65%, significantly higher than in controls.
Incorrect. The correct answer is 65%.
Median preoperative nasopharyngeal collapse in brachycephalic dogs was 65%, significantly higher than in controls.

🔍 Key Findings

  • Nasopharyngeal collapse was significantly more severe in brachycephalic dogs (median 65%) than in nonbrachycephalic controls (median 10%) (p = .0001).
  • Postoperative fluoroscopy showed no significant improvement in nasopharyngeal collapse (p = .0505), despite reported clinical improvement.
  • 70% of brachycephalic dogs had ≥50% collapse; 26% had 100% collapse preoperatively.
  • All owners of surgical cases reported clinical improvement, including reduced respiratory noise and improved exercise tolerance.
  • Surgical techniques used included combinations of alaplasty, staphylectomy, sacculectomy, and tonsillectomy.
  • Improvement in nasopharyngeal dimensions was variable, with some dogs improving ≥45%, some worsening, and one dog showing a 100% increase post-op.
  • Pharyngeal collapse may not be solely anatomical; neuromuscular dysfunction (e.g., reduced pharyngeal dilator muscle function) may contribute.
  • Current surgical techniques may not address functional airway abnormalities, suggesting a need for multimodal or targeted interventions.

Clarke

Veterinary Surgery

6

2022

Severity of nasopharyngeal collapse before and after corrective upper airway surgery in brachycephalic dogs

2022-6-VS-clarke-1

Article Title: Severity of nasopharyngeal collapse before and after corrective upper airway surgery in brachycephalic dogs

Journal: Veterinary Surgery

In Low 2025 et al., on gonadectomy and CrCLD, which timing of gonadectomy was associated with the highest relative risk for cruciate disease?

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Correct. The subgroup analysis showed that dogs neutered at ≤1 year had significantly increased odds (OR: ~3.4) of developing CrCLD compared to those neutered later.
Incorrect. The correct answer is Gonadectomy at or before 1 year of age.
The subgroup analysis showed that dogs neutered at ≤1 year had significantly increased odds (OR: ~3.4) of developing CrCLD compared to those neutered later.

🔍 Key Findings

Increased risk with gonadectomy:

  • Pooled OR for CrCLD:
    • Females: 2.29 (95% CI: 1.77–2.95)
    • Males: 2.12 (95% CI: 1.67–2.69)

Early gonadectomy (≤1 year) further increased risk:

  • OR vs >1 year:
    • Females: 3.39
    • Males: 3.13

Late gonadectomy (>1 year) had no significant difference vs intact dogs.

Breed-specific findings:

  • Female Labradors: No increased CrCLD risk from gonadectomy (OR = 1.19; 95% CI: 0.54–2.64)
  • Male Labradors: Increased risk persisted (OR = 2.13; 95% CI: 1.53–2.98)

Study type: Systematic review + meta-analysis of 24 observational studies (n = 1.85 million dogs)

Low

Veterinary Surgery

2

2025

The association between gonadectomy and timing of gonadectomy, and the risk of canine cranial cruciate ligament disease: A systematic review and meta-analysis

2025-2-VS-low-2

Article Title: The association between gonadectomy and timing of gonadectomy, and the risk of canine cranial cruciate ligament disease: A systematic review and meta-analysis

Journal: Veterinary Surgery

In Buote 2023 et al., on feline laparoscopic cannulas, how did the **instrument collision rate** change when using 3D printed cannulas compared to traditional ports?

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Correct. Instrument collisions decreased from a mean of 6.8 to 2.6 per procedure (p = 0.03) with 3DPCs:contentReference[oaicite:2]{index=2}.
Incorrect. The correct answer is Collisions decreased significantly.
Instrument collisions decreased from a mean of 6.8 to 2.6 per procedure (p = 0.03) with 3DPCs:contentReference[oaicite:2]{index=2}.

🔍 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.

Buote

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-3-5156e

Article Title: 3D printed cannulas for use in laparoscopic surgery in feline patients: A cadaveric study and case series

Journal: Veterinary Surgery

In Davis 2025 et al., on modified anal sacculectomy, what was the most common complication grade reported postoperatively?

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Correct. Grade 1 complications (minor, self-limiting signs like scooting or inappropriate defecation) occurred in 32% of dogs.
Incorrect. The correct answer is Grade 1.
Grade 1 complications (minor, self-limiting signs like scooting or inappropriate defecation) occurred in 32% of dogs.

🔍 Key Findings

50 dogs underwent bilateral anal sacculectomy using a modified closed technique.
Intraoperative anal sac perforation occurred in 5 dogs (10%), with no postoperative complications in those dogs.
Postoperative complications (43 dogs with follow-up):

  • Grade 1 (e.g., scooting, inappropriate defecation): 14/43 (32%)
  • Grade 2 (medical treatment needed): 2/43 (5%)
  • Grade 3B (revision surgery): 2/43 (5%)

93% of grade 1 and 100% of grade 2–3B complications resolved by two weeks postop.
Technique highlights: direct duct tracking, no anal sac packing, minimal dissection.

Davis

Veterinary Surgery

2

2025

Modified closed sacculectomy in 50 dogs with non‐neoplastic anal sac disease

2025-2-VS-davis-1

Article Title: Modified closed sacculectomy in 50 dogs with non‐neoplastic anal sac disease

Journal: Veterinary Surgery

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