Your Custom Quiz

In Trefny 2025 et al., on locking plate biomechanics, what effect did transcortical contact have on long working length constructs?

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Correct. Long working length constructs became stiffer and less strained after transcortical contact.
Incorrect. The correct answer is Decreased strain and increased stiffness.
Long working length constructs became stiffer and less strained after transcortical contact.

🔍 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-3

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 Kuvaldina 2023 et al., in Minimally invasive axillary lymphadenectomy in dogs, what anatomical variation was noted during cadaver dissection?

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Correct. One limb had two distinct axillary lymph nodes, an important anatomical finding noted during cadaveric dissection.
Incorrect. The correct answer is Double axillary lymph node in one limb.
One limb had two distinct axillary lymph nodes, an important anatomical finding noted during cadaveric dissection.

🔍 Key Findings

  • A minimally invasive endoscopic technique was successfully developed for excisional biopsy of axillary lymph nodes in dogs.
  • The procedure was performed on 4 cadavers (6 limbs) and 3 clinical patients, with no major complications reported.
  • Mean cadaveric time: accessory axillary node 5.1 min; axillary node 33 min. One limb had a double axillary node.
  • In clinical cases, 2/3 were completed endoscopically; one required conversion to open due to node elevation difficulty.
  • Surgical times in clinical cases ranged from 35 to 58 minutes, depending on node accessibility and number.
  • Postoperative morbidity was minimal: no lymphedema, minor seroma or lameness resolved quickly.
  • The SILS port approach enabled effective access, though precise placement was critical to visualization.
  • This is the first reported veterinary endoscopic technique for axillary lymphadenectomy; potential for improved staging and reduced morbidity.

Kuvaldina

Veterinary Surgery

7

2023

Development of a minimally invasive endoscopic technique for excisional biopsy of the axillary lymph nodes in dogs

2023-7-VS-kuvaldina-5

Article Title: Development of a minimally invasive endoscopic technique for excisional biopsy of the axillary lymph nodes in dogs

Journal: Veterinary Surgery

In Guevara 2024 et al., on implant placement accuracy, what was the rate of acceptable pin placement using 3D-printed guides?

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Correct. The 3DPG group had an acceptable placement rate of 87.5% vs 69.8% in FH group.
Incorrect. The correct answer is 87.5%.
The 3DPG group had an acceptable placement rate of 87.5% vs 69.8% in FH group.

🔍 Key Findings:

  • Sample: 24 canine cadavers, 477 total pins across 240 vertebrae.
  • Technique Comparison: 3D printed guides (3DPG) vs freehand (FH).
  • Acceptable Placement Rates: 3DPG = 87.5%, FH = 69.8% (p < .0001).
  • Odds Ratio for FH: 0.28 (95% CI 0.16–0.47), significantly less likely to yield acceptable placement.
  • Worst Accuracy Locations: T10 (OR 0.10), T11 (OR 0.35).
  • Surgeon Impact: Surgeon 2 outperformed others (OR 9.61, p = .001).
  • Modified Zdichavsky Classification used to score implant accuracy (Grades I–IIIb).
  • Primary Benefit of 3DPG: Increased safety and precision, regardless of surgeon experience.

Guevara

Veterinary Surgery

2

2024

Ex vivo comparison of pin placement with patient-specific drill guides or freehand technique in canine cadaveric spines

2024-2-VS-guevara-1

Article Title: Ex vivo comparison of pin placement with patient-specific drill guides or freehand technique in canine cadaveric spines

Journal: Veterinary Surgery

In Neal 2023 et al., on transcondylar screw placement, which method had lower screw eccentricity on the humeral condyle?

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Correct. Fluoroscopy achieved significantly better screw centering on the condyle (3.1 mm vs 4.2 mm, p = .0017).
Incorrect. The correct answer is Fluoroscopy.
Fluoroscopy achieved significantly better screw centering on the condyle (3.1 mm vs 4.2 mm, p = .0017).

🔍 Key Findings

  • Aiming device provided comparable trajectory accuracy to fluoroscopy, especially in right limbs (1.9° vs. 3.4°, p = .0128).
  • Eccentricity (deviation from condylar center) was lower with fluoroscopy (3.1 mm vs 4.2 mm, p = .0017), making fluoroscopy more precise.
  • Odds of joint infringement were 8× higher with the aiming device, though not statistically significant (p = .0575).
  • Residents had greater screw trajectory deviation than diplomates (p = .0366), highlighting impact of experience.
  • Aiming device procedures took less time than fluoroscopy in some scenarios, particularly for right limbs with right-handed surgeons.
  • Fluoroscopic procedures had more pin/drill attempts, increasing risk of glove puncture and potential aseptic breaks.
  • Mean deviation angles in both groups (<3.5°) were within acceptable range to avoid intracondylar fracture gap.
  • Cadaver model used large-breed, healthy adult dogs, not small-breed immature dogs, limiting generalizability.

Neal

Veterinary Surgery

4

2023

The effect of an aiming device on the accuracy of humeral transcondylar screw placement

2023-4-VS-neal-2

Article Title: The effect of an aiming device on the accuracy of humeral transcondylar screw placement

Journal: Veterinary Surgery

In Knudsen 2024 et al., on CTA diagnosis, what factor most significantly influenced diagnostic agreement and performance in CTA readings?

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Correct. Experience level affected both intra- and interobserver agreement.
Incorrect. The correct answer is Observer experience.
Experience level affected both intra- and interobserver agreement.

🔍 Key Findings

  • Multidetector CTA had high sensitivity (up to 100%) and specificity (up to 96%) for detecting medial meniscal tears in dogs.
  • Observer experience significantly influenced diagnostic accuracy, with more experienced observers showing higher agreement and better performance.
  • Training effect was evident, as less experienced observers improved between first and second readings.
  • Positive likelihood ratios ≥4.6 and negative likelihood ratios ≤0.08 were observed, suggesting CTA is clinically useful for confirming or ruling out meniscal injury.
  • CTA allowed identification of full and partial thickness lesions, with good visualization in sagittal, transverse, and frontal reconstructions.
  • Approximately 90% of menisci were correctly classified in second readings.
  • No adverse reactions were noted from the contrast injection; sedation was used instead of general anesthesia.
  • CTA was less invasive and potentially more cost-effective compared to arthroscopy, especially in settings without MRI access.

Knudsen

Veterinary Surgery

8

2024

Diagnosis of medial meniscal lesions in the canine stifle using multidetector computed tomographic positive-contrast arthrography

2024-8-VS-knudsen-2

Article Title: Diagnosis of medial meniscal lesions in the canine stifle using multidetector computed tomographic positive-contrast arthrography

Journal: Veterinary Surgery

In Allaith 2023 et al., on THR outcomes, which implant system was used most frequently across the 10-year registry period?

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Correct. Kyon implants were used in 46% of THRs, making them the most frequently used implant system in the registry.
Incorrect. The correct answer is Kyon.
Kyon implants were used in 46% of THRs, making them the most frequently used implant system in the registry.

🔍 Key Findings

From Allaith et al., 2023 – Outcomes from a multiuser canine hip replacement registry

  • 2375 total hip replacements were analyzed across 1852 dogs, making this the largest multiuser canine THR dataset to date.
  • Most common indications for THR were hip dysplasia (51%) and osteoarthritis (34%).
  • Implants used included Kyon (46%), BioMedtrix CFX (22%), Hybrid (11%), BFX (9%), and Helica (4.5%).
  • Veterinary-reported complication rate was 8.5%, while owner-reported was 23%, with moderate agreement (k=0.44).
  • Most common complications: Luxation, femoral fracture, and aseptic loosening.
  • BioMedtrix BFX and Helica implants had a higher risk of complications when used after femoral head and neck excision (P = .031).
  • Postoperative LOAD scores significantly improved vs preoperative (21 → 11; P < .0001), supporting improved mobility.
  • Owner satisfaction was high, with 88% rating outcome as very good or good.

Allaith

Veterinary Surgery

2

2023

Outcomes and complications reported from a multiuser canine hip replacement registry over a 10-year period

2023-2-VS-allaith-5

Article Title: Outcomes and complications reported from a multiuser canine hip replacement registry over a 10-year period

Journal: Veterinary Surgery

In Enright 2022 et al., on adrenalectomy outcomes, which of the following best describes the association between alpha-blocker use and intraoperative hypertension?

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Correct. Dogs receiving alpha-blockers had significantly higher systolic BP intraoperatively (median 170 mmHg vs. 142 mmHg; P = .01).
Incorrect. The correct answer is Alpha-blocker therapy was associated with higher intraoperative systolic BP.
Dogs receiving alpha-blockers had significantly higher systolic BP intraoperatively (median 170 mmHg vs. 142 mmHg; P = .01).

🔍 Key Findings

  • 83% of dogs survived to discharge after adrenalectomy for pheochromocytoma.
  • Median survival time post-discharge was 1169 days (3.2 years).
  • Preoperative alpha-blocker therapy (e.g., phenoxybenzamine) was not associated with improved survival.
  • Dogs receiving alpha-blockers had higher intraoperative systolic BP, with median values 170 mmHg vs. 142 mmHg in non-treated dogs (P = .01).
  • Intraoperative arrhythmias occurred in 30% of cases, with no difference between dogs receiving alpha-blockers and those not.
  • Histologic vascular invasion occurred in ~70% of tumors.
  • Tumor recurrence was suspected in 3 dogs, and metastasis in 8 dogs, though not histologically confirmed in most cases.
  • Postoperative complications included refractory hypotension, acute kidney injury, and hypertension persisting >48 hours in 10 dogs.

Enright

Veterinary Surgery

3

2022

Short‐ and long‐term survival after adrenalectomy in 53 dogs with pheochromocytomas with or without alpha‐blocker therapy

2022-3-VS-enright-3

Article Title: Short‐ and long‐term survival after adrenalectomy in 53 dogs with pheochromocytomas with or without alpha‐blocker therapy

Journal: Veterinary Surgery

In Cruciani 2022 et al., on feline pancreaticoduodenostomy, what was the final histopathologic diagnosis following euthanasia?

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Correct. The origin of the carcinoma was not determined; liver and lymph node metastases were present.
Incorrect. The correct answer is Disseminated carcinoma of undetermined origin.
The origin of the carcinoma was not determined; liver and lymph node metastases were present.

🔍 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.

Cruciani

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-3

Article Title: Left pancreaticoduodenostomy after removal of the right lobe and the head of the pancreas in a cat

Journal: Veterinary Surgery

In Maeta 2022 et al., on total cystectomy in cats, what describes the surgical modification to the ureter for the stomal anastomosis?

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Correct. This fish-mouth design allowed the ureter to match the rectangular skin defect for secure stoma creation.
Incorrect. The correct answer is Two longitudinal incisions forming a fish-mouth aperture.
This fish-mouth design allowed the ureter to match the rectangular skin defect for secure stoma creation.

🔍 Key Findings

  • First reported case of total cystectomy and bilateral cutaneous ureterostomy in a cat using a modified Toyoda technique.
  • Histologically complete tumor resection was achieved, with tumor-free ureter and urethral margins >20 mm.
  • The modified Toyoda technique involved shaping the ureter into a fish-mouth aperture and anastomosing it to a rectangular skin defect for stomal formation.
  • Incontinence was managed using a diaper changed every 6–8 hours, with no dermatological complications.
  • Obstruction of the right ureter occurred 14 months post-op, associated with a subcutaneous nodule at the anastomosis site.
  • Despite incontinence, owner satisfaction and perceived quality of life were high, with the cat living ~16 months post-op.
  • The stents were removed on days 7 (left) and 28 (right) postoperatively, with initial patency maintained until 14 months.
  • This surgical approach may offer palliative or curative benefit for feline trigonal TCC where partial cystectomy is not feasible.

Maeta

Veterinary Surgery

8

2022

Modified Toyoda technique for total cystectomy and cutaneous ureterostomy in a cat

2022-8-VS-maeta-4

Article Title: Modified Toyoda technique for total cystectomy and cutaneous ureterostomy in a cat

Journal: Veterinary Surgery

In Dekerle 2022 et al., on ectopic ureter correction, which surgical technique was associated with the **lowest rate of minor complications**?

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Correct. CLA had a 13% minor complication rate compared to 100% with neoureterostomy.
Incorrect. The correct answer is Cystoscopic-guided laser ablation (CLA).
CLA had a 13% minor complication rate compared to 100% with neoureterostomy.

🔍 Key Findings

  • Cystoscopic-guided laser ablation (CLA) was associated with significantly fewer minor complications (13%) than neoureterostomy (100%) (P < .01)
  • CLA resulted in significantly fewer recurrences of incontinence compared to neoureterostomy (0/7 vs 5/12; P < .05)
  • 80% of dogs achieved continence within 1 month postoperatively, with a median continence score of 10
  • Long-term continence was achieved in 88% of dogs, with or without adjunctive treatment, over a median of 66 months
  • Major complications occurred in only 8% of dogs, and all were successfully managed with surgical revision
  • Persistent ureteral remnants were seen only in neoureterostomy dogs, potentially contributing to incontinence recurrence
  • All dogs with incontinence recurrence responded to medical treatment, while only 1/5 with persistent incontinence after surgery did
  • CLA is recommended over open surgery for iEU correction, due to lower complication and recurrence rates

Dekerle

Veterinary Surgery

4

2022

Outcomes of 25 female dogs treated for ectopic ureters by open surgery or cystoscopic-guided laser ablation

2022-4-VS-dekerle-1

Article Title: Outcomes of 25 female dogs treated for ectopic ureters by open surgery or cystoscopic-guided laser ablation

Journal: Veterinary Surgery

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