Your Custom Quiz
In Vodnarek 2024 et al., on nasopharyngeal fluoroscopy, what was the **main limitation** of grading using ΔL thresholds?
🔍 Key Findings
- Study population: 36 brachycephalic dogs (20 French bulldogs, 16 pugs).
- Objective: Compare intra- and interobserver reliability for fluoroscopic measurement of nasopharyngeal collapse using two methods:
- Functional method
- Anatomically adjusted method
- Key measurements: Minimum (LMin), maximum (LMax) dorsoventral height, and dynamic change ratio (ΔL).
- Outcomes:
- Intraobserver agreement for ΔL was higher with the functional method (ICC 0.751 vs. 0.576).
- Observer 1 (radiologist) showed excellent repeatability (>0.9 ICC).
- Agreement for grading collapse was only moderate (κ ~0.49–0.53), worse than ΔL-based agreement.
- ΔL ≥ 0.5 to <1 = partial collapse; ΔL = 1 = complete collapse.
Veterinary Surgery
1
2024
Reliability of fluoroscopic examination of nasopharyngeal dorsoventral dimension change in pugs and French bulldogs
2024-1-VS-vodnarek-4
In Haine 2022 et al., on outcomes in canine limb tumors, which lateral surgical margin width significantly reduced R1 margin rates?
🔍 Key Findings
- Fewer R1 margins (tumor on ink) were achieved in mast cell tumors (MCTs) when using 6–10 mm lateral margins versus 0–5 mm (7% vs. 55%; _P_ = .049).
- For soft tissue sarcomas (STSs), no benefit was seen in margin completeness between 0–5 mm vs. 6–10 mm lateral margins (41% vs. 43% R1).
- Overall R1 rates were 26% for MCTs and 42% for STSs following PNE.
- R scheme (“tumor on ink” = R1) had better interobserver agreement (83%) compared to ≤1 mm margin criteria (68% agreement).
- Complication rate was moderate (26%), but no surgeries required revision.
- Local recurrence/metastasis occurred in 14% of dogs, with 60% of those having R1 margins.
- Adjunctive therapy was considered clinically indicated in 46% of 0–5 mm margin cases vs. 24% of 6–10 mm cases.
- Histologic grade and tumor size were not predictive of margin completeness.
Veterinary Surgery
7
2022
Incomplete histological margins following planned narrow excision of canine appendicular soft tissue sarcomas and mast cell tumors, using the residual tumor classification scheme
2022-7-VS-haine-2
In Story 2024 et al., on eTPA osteotomy comparison, which group demonstrated **tibial shortening** as an outcome?
🔍 Key Findings
- Population: 16 dogs (27 tibias), TPA >34°
- Techniques analyzed:
- Group A: CBLO + CCWO
- Group B: TPLO + CCWO
- Group C: mCCWO
- Group D: PTNWO
- Outcomes:
- All groups achieved post-correction TPA < 14°.
- Group A: Slight over-correction (mean TPA 10.47°); greatest mechanical axis shift.
- Group B: Tibial shortening (~0.58%); least mechanical axis shift.
- Group C: Lowest post-correction TPA (mean 4.76°); under-correction.
- Group D: High accuracy, minimal shortening (mean 7.09° post).
- Statistical Significance:
- Significant differences in tibial length change and mCrDTA (mechanical axis shift) between groups (p <.05).
- TPA correction accuracy: Group A (1.02), B (0.95), C (0.89), D (0.98).
Veterinary Surgery
1
2024
Morphologic impact of four surgical techniques to correct excessive tibial plateau angle in dogs: A theoretical radiographic analysis
2024-1-VS-story-2
In Miller 2024 et al., on leak testing in cooled feline intestine, what was a key implication of the intraluminal diameter findings?
🔍 Key Findings
- No difference in initial leak pressure (ILP) or maximum intraluminal pressure (MIP) between cooled (17–29 h) and fresh enterotomy constructs.
- Wall thickness of duodenum and jejunum did not differ between fresh and cooled samples.
- Leak locations (suture holes vs clamp sites) were similar between groups; not statistically different.
- Volume of infusion did not influence ILP or MIP outcomes.
- Mean ILP values: Control = 600 mmHg (maxed), Fresh = 200 mmHg, Cooled = 131 mmHg; CE vs FE difference was not significant.
- Intraluminal diameter was largest in the ileum, followed by jejunum and duodenum.
- Cadaveric intestine cooled ≤29h may be reliably used in ex vivo feline leak pressure studies.
- First report of gross small intestinal lengths by region in cats—useful for resection planning.
Veterinary Surgery
5
2024
Cooled feline intestine and fresh intestine did not differ in enterotomy leak pressure testing or in gross wall thickness measurement
2024-5-VS-miller-3
In Sullivan 2025 et al., on TTT stabilization methods, what biomechanical benefit did the TBW group demonstrate over the others?
🔍 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.
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-3
In Espinel Rupérez 2023 et al., on feline hip stabilization, what factor most likely contributed to the absence of complications in the final 4 joints?
🔍 Key Findings
- Arthroscopic-assisted hip toggle stabilization (AA-HTS) was successfully completed in all 14 feline cadaver joints.
- Femoral and acetabular tunnel creation was feasible in all cases, though femoral tunnel placement had a higher rate of deviations.
- Intraoperative complications occurred in 5/14 joints, mostly related to femoral tunnel creation and toggle lodging.
- Minor articular cartilage injury (<10% total cartilage area) occurred in 10/14 joints, but no injury to neurovascular or intrapelvic structures.
- Thirteen surgical technique deviations (8 major, 5 minor) were identified in 7 joints, all involving the femoral tunnel.
- Toggle passage through the femoral tunnel was the most challenging step, being mildly difficult in 6 joints.
- Postoperative CT and gross dissection confirmed all toggles and buttons were in correct position, without damage to major surrounding structures.
- No deviations, complications, or cartilage injuries occurred in the last 4 joints, suggesting a learning curve effect.
Veterinary Surgery
6
2023
Arthroscopic-assisted hip toggle stabilization in cats: An ex vivo feasibility study
2023-6-VS-espinel-5
In Deveci 2025 et al., on 3D drill guides, what was the median screw trajectory deviation in the transverse plane?
🔍 Key Findings
- Objective: Evaluate feasibility and accuracy of 3D-printed patient-specific drill guides for iliosacral screw placement in cadaver dogs.
- N = 10 canine cadavers (20 hemipelves); screw placement done using fluoroscopic-assisted patient-specific guides (PSG).
- Median cortical breach grade: 0 (IQR 0–1) for all screws.
19/20 screws breached sacral canal wall (all ≤ grade 2), but no screws breached canal contents (grade 3). - Median trajectory deviation: 0.88° transverse, 0.72° dorsal.
- Procedure time: Median 7.2 minutes for guide placement and drilling.
- Conclusions: PSG-assisted screw placement was safe, accurate, and fast, offering clinical potential in pelvic trauma.
Veterinary Surgery
2
2025
Evaluation of 3D‐printed patient‐specific guides to facilitate fluoroscopic‐assisted iliosacral screw placement in dogs
2025-2-VS-deveci-3
In McCarthy 2022 et al., on 3D drill guide accuracy, how did CT and 3D analysis compare in assessing drill angles?
🔍 Key Findings
- 3D-printed drill guides (3D-GDT) significantly reduced craniocaudal and dorsoventral drilling angle deviation compared to free-hand drilling technique (FHDT), with statistical significance (p < .0001 and p = .01 respectively).
- No sacral corridor breaches occurred with 3D-GDT, whereas FHDT resulted in 20% drill exit incidences (3/15 cases).
- 3D-GDT had lower deviation from optimal drill trajectory at end points in all axes: craniocaudal (1.84 ± 1.6 mm vs. 4.18 ± 2.4 mm), dorsoventral (1.11 ± 1.0 mm vs. 2.4 ± 1.5 mm), and 3D linear (2.47 ± 1.4 mm vs. 5.35 ± 2.2 mm), all statistically significant.
- Strong correlation (r = 0.77) between CT and 3D software measurements validated method reliability.
- 3D guide trajectories showed consistent proximity to the optimal trajectory, especially at drill endpoints, indicating reduced variability in execution.
- 3D-GDT was developed using open-source software and inexpensive materials, supporting future clinical application.
- Major errors in FHDT occurred primarily at the drill endpoint, underscoring the challenge of maintaining optimal angulation during free-hand drilling.
- The sacral corridor was recharacterized as pyramidal (not quadrilateral), with implications for safer implant placement.
Veterinary Surgery
1
2022
Accuracy of a drilling with a custom 3D printed guide or free‐hand technique in canine experimental sacroiliac luxations
2022-1-VS-mccarthy-4
In Perez Neto 2025 et al., on hip resurfacing arthroplasty, approximately how many times body weight did prosthetic femurs withstand before failure?
🔍 Key Findings
- In an ex vivo study of 20 canine femur pairs, implantation of a novel hip resurfacing arthroplasty (HRA) prosthesis reduced maximum load (ML) by 22% and load at collapse (LC) by 27% vs. intact controls (p ≤ 0.05).
- Displacement at maximum load (DML), displacement at collapse (DC), and stiffness (k) were not significantly different between prosthesis and control groups.
- Both groups showed similar failure patterns, with 92% failing at the femoral neck.
- All prosthetic femurs still withstood ~6.2× body weight — exceeding estimated in vivo peak loads (~1.64× BW).
- Prosthesis positioning (neutral vs valgus) had no significant effect on biomechanical outcomes.
- Implant design preserved more metaphyseal bone stock than total hip replacement, possibly explaining the smaller load reduction compared to other short-stem prostheses.
- The press-fit cobalt–chromium design with conical stem allowed full contact and stress distribution over the femoral head/neck.
- Authors conclude the device has adequate immediate biomechanical strength for clinical use, though long-term in vivo studies are needed.
Veterinary and Comparative Orthopaedics and Traumatology
4
2025
Biomechanical Evaluation of a Femoral Implant for Hip Resurfacing Arthroplasty in Dogs: An Ex Vivo Study
2025-4-VCOT-perezneto-4
In Evers 2022 et al., on bone-to-tendon plate fixation, what was the primary reason for anchoring the plate to the tendon instead of the bone?
🔍 Key Findings
- Bone-to-tendon plate fixation allowed successful stabilization of a highly comminuted calcaneus fracture in a dog with fragments too small for traditional fixation.
- The plate was sutured to the common calcaneal tendon using a figure-of-8 pattern, bypassing the need for screw fixation into small proximal fragments.
- Radiographic union was achieved by 17 weeks, though considered delayed, with the dog returning to normal function by 36 weeks post-op.
- A second surgery was required to replace the tendon-anchored plate with a calcaneus-only plate due to skin ulceration and implant prominence.
- Implant-associated infection was suspected; cultures confirmed Staphylococcus pseudintermedius, managed with doxycycline and clindamycin.
- Use of human placental matrix (hPM) and both autogenous and allogenic bone grafts supported healing, though their specific contribution remains uncertain.
- Postoperative complications included delayed union and skin ulceration, emphasizing challenges of implant design and soft tissue management.
- This is the first report of using a bone-to-tendon plate for a calcaneus fracture in dogs and demonstrates its potential in cases where traditional methods are not viable.
Veterinary Surgery
5
2022
Use of a bone‐to‐tendon plate to stabilize a comminuted calcaneus fracture in a dog
2022-5-VS-evers-1
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