
Quiz Question
In Peycke 2022 et al., on CBLO in immature dogs, which structure must be **avoided during osteotomy** to preserve growth potential?
🔍 Key Findings
- CBLO was effective for stifle stabilization in skeletally immature dogs with CrCL injuries, avoiding disruption of proximal tibial growth plates.
- Radiographic union of the osteotomy occurred in a mean of 6 weeks (range: 4–8 weeks), indicating rapid bone healing.
- Full limb function was restored in all cases by long-term follow-up (mean 23 months), including dogs with initial complications.
- Two dogs developed 19° valgus deformities due to screw interference with the proximal tibial physis; both were corrected surgically with return to function.
- One dog developed 10° recurvatum due to over-rotation of the tibial plateau, but retained full function without revision.
- CCS (countersink compression screw) caused early apophyseal closure in older dogs but had no adverse clinical effects.
- In contrast, K-wire or plate-only fixation preserved open apophysis, suggesting implant choice may influence growth.
- No meniscal injuries were observed, and all CrCL injuries were managed arthroscopically — 6 complete, 6 partial, 4 avulsions.
Veterinary Surgery
3
2022
Center of rotation of angulation-based leveling osteotomy for stifle stabilization in skeletally immature dogs
2022-3-VS-peycke-1
In Banks 2024 et al., what patient factor was associated with higher preoperative and postoperative TPAs?
🔍 Key Findings Summary
- Study Design: Retrospective study of 100 radiographs using in silico and clinical data
- Mean preoperative TPA: 28.6°, higher in small dogs than large (p = .02)
- Mean planned TPA (in silico): 7.6°, not achieving 5° target (p < .01)
- Median postoperative TPA: 5.5° overall; higher in small dogs (7°) vs large (4.5°) (p = .06)
- Postoperative ostectomy position: More distal than recommended; average = 8.6 mm
- Increased distalization → greater under-correction of TPA (p = .01)
- Most accurate correction occurred when ostectomy was ≤7.5 mm from patellar tendon
- Wedge angle categories (TPA-Pre minus 5–2°) were used based on pre-op TPA
Veterinary Surgery
1
2024
A mismatch of planning and achieved tibial plateau angle in cranial closing wedge surgery: An in silico and clinical evaluation of 100 cases
2024-1-VS-banks-4
In Scheuermann 2023 et al., on MIPO with 3D-printed bone models, what postoperative alignment difference was noted in the FRS group compared to the virtual surgical plan?
🔍 Key Findings
- Precontoured plates based on 3D-printed femurs produced accurate femoral alignment (median deviations <3 mm or <3° in all planes).
- Both fracture reduction system (FRS) and intramedullary pin (IMP) methods achieved near-anatomic alignment in cadaveric femoral fractures.
- FRS required fewer fluoroscopic images (median 7 vs. 26, P = .001), but longer surgical time (median 43 vs. 29 min, P = .011).
- Sagittal plane alignment: FRS led to mild increased recurvatum (median 2.9°), but still within near-anatomic limits (<5°).
- Axial alignment: Both groups achieved near-anatomic torsion (<10°), though one IMP case had acceptable (not near-anatomic) alignment.
- Custom drill guides and FRS improved fluoroscopy efficiency but were cumbersome and time-consuming to use. Authors do not recommend current prototype for clinical use.
- Clinical significance: 3D printed models allow accurate precontouring, reducing intra-op plate adjustment; custom guides may reduce radiation exposure for the surgical team.
Veterinary Surgery
7
2023
Minimally invasive plate osteosynthesis of femoral fractures with 3D-printed bone models and custom surgical guides: A cadaveric study in dogs
2023-7-VS-scheuermann-3
In Anderson 2023 et al., on French Bulldogs with humeral condylar fractures, which factor was **not significantly associated** with the presence of a contralateral HIF?
🔍 Key Findings
- Lateral humeral condylar fractures (LHCF) were most common, comprising 63.6% of cases.
- Transcondylar screw (TCS) + K-wire(s) fixation had a 7.62x higher risk of major complications compared to other methods (p = .009).
- All cases of TCS migration occurred in the TCS + K-wire group; none occurred with plate fixation.
- Overall complication rate was 40.9%, with 29.5% being major and requiring intervention.
- Contralateral humeral intracondylar fissures (HIF) were found in 58.1% of French Bulldogs with CT data.
- No significant association between age and presence of HIF, but fissure length increased with age (R = 0.47, p = .048).
- Younger, lighter dogs had higher complication and screw migration rates, possibly due to softer bone and smaller condyles.
- TCS + plate fixation had the lowest complication rate, suggesting biomechanical superiority.
Veterinary Surgery
1
2023
Humeral condylar fractures and fissures in the French bulldog
2023-1-VS-anderson-5
In Welsh 2023 et al., on TTAF fixation methods, what was the estimated quadriceps force at a walk used as a benchmark for load testing?
🔍 Key Findings
- Two-pin fixation had significantly greater strength (639 N) than single-pin fixation (426 N) in TTAF models (p = .003).
- Stiffness was also higher with two-pin constructs (72 N/mm vs 57 N/mm); statistically significant (p = .029).
- Both fixation types withstood loads greater than quadriceps force in dogs at a walk (240 N), indicating clinical viability.
- Failure was most commonly due to pin bending or pullout (82%), with fewer cases of ligament tearing or epiphyseal fracture.
- K-wire insertion angle (KWIA) did not significantly differ between fixation types (p = .13).
- Single larger pins delivered ~68% of the strength and ~83% of the stiffness of two smaller vertically aligned pins.
- Clinical implication: Two vertically aligned pins are biomechanically superior for TTAF fixation in canine models.
- Study used mature cadavers, which may underestimate loads and stiffness compared to immature clinical cases.
Veterinary Surgery
5
2023
Biomechanical comparison of one pin versus two pin fixation in a canine tibial tuberosity avulsion fracture model
2023-5-VS-welsh-5
In de Moya 2023 et al., on FGPP of femoral capital physeal/neck fractures, what was the overall healing outcome?
🔍 Key Findings
- 11 dogs, 13 fractures (mostly Salter-Harris type I) were repaired with FGPP using Kirschner wires.
- 10/13 fractures achieved satisfactory healing with good limb function at ~43 days median follow-up.
- Major complications occurred in 5 dogs: intra-articular pin placement, implant migration (2), implant failure with nonunion, and malunion.
- 2 dogs presenting >15 days post-injury with radiographic remodeling were poor candidates → higher risk of nonunion/malunion.
- Preoperative displacement was mostly mild (10/13 fractures); these had better outcomes than chronic or severely displaced cases.
- Median surgical time: 60 minutes (range 45–75), all performed percutaneously without conversion to open.
- Elective pin removal was performed in 5 cases; migration occurred with both short and long cut wires.
- Femoral neck resorption (“apple-coring”) was rare (2/10 healed cases) and thought to be less frequent than after ORIF due to reduced vascular disruption.
Veterinary Surgery
7
2023
Closed reduction and fluoroscopic-guided percutaneous pinning of femoral capital physeal or neck fractures: Thirteen fractures in 11 dogs
2023-7-VS-demoya-1
In Carrera 2024 et al., what was the average time to radiographic bone healing following early MPL surgery?
🔍 Key Findings Summary
- 5 juvenile dogs (mean age 7.2 months) with grade III–IV MPL were treated surgically.
- Most had femoral varus + external tibial torsion; some had shallow trochlear grooves.
- Distal femoral osteotomy was performed in 4/5 dogs; Tibial tuberosity transposition (TTT) in 3/5; Sulcoplasty in 2/5.
- Mean time to weight bearing: 9.8 ± 5.5 days; healing: 55 ± 24 days
- No reluxations, and final radiographic values for aLDFA and torsion were maintained at 1 year.
- One complication due to domestic trauma, not surgical failure.
- Early surgery appeared to preserve alignment and prevent deformity progression.
Veterinary and Comparative Orthopedics and Traumatology
2
2024
Early Surgical Management of Medial Patellar Luxation in Juvenile Dogs
2024-2-VCOT-carrera-3
In Williams 2024 et al., on breed effects, which breed exhibited significantly greater hemorrhage, even after normalization?
🔍 Key Findings Summary
- Design: Prospective, randomized, double-blinded controlled trial
- Population: 32 brachycephalic dogs undergoing cut-and-sew sharp staphylectomy
- Groups: Adrenaline + lidocaine (Group A) vs. Lidocaine only (Group NA)
- Main Findings:
- Total hemorrhage significantly lower in Group A (median 1.82 g) vs Group NA (7.95 g); p = .013
- Normalized hemorrhage significantly lower in Group A; p = .021
- Surgeon-assigned hemorrhage scores significantly lower in Group A; p = .029
- No adverse effects (tachycardia, hypertension, arrhythmia, etc.) noted from adrenaline use
- Breed effect: English Bulldogs bled more overall even after normalization
- Clinical Implication: Adrenaline in nerve blocks reduces hemorrhage without added risk
Veterinary Surgery
1
2024
Evaluation of the addition of adrenaline in a bilateral maxillary nerve block to reduce hemorrhage in dogs undergoing sharp staphylectomy for brachycephalic obstructive airway syndrome. A prospective, randomized study
2024-1-VS-williams-4
In Forzisi 2025 et al., on femoral growth post-THR, what was the relationship between age at surgery and femoral length difference?
🔍 Key Findings
Population: 24 dogs (<8.5 months) undergoing unilateral cementless THR.
Growth Impact:
- Operated femurs showed ~11.5% less trochanteric growth than controls (p = .002).
- No significant difference in femoral diaphyseal + epiphyseal length (p = .712) or femur overall (p = .465).
Cortical Width:
- Increased significantly at 10 mm distal to trochanter (4.6% increase, p = .037) and at 50% femoral length (8.5% increase, p = .030).
Clinical relevance: Despite measurable changes, no clinically significant impairment to femoral length occurred.
Effect Sizes:
- Moderate negative for trochanteric growth.
- Moderate positive for proximal femoral width.
Veterinary Surgery
1
2025
Evaluation of the effects of cementless total hip replacement on femoral length in skeletally immature dogs
2025-1-VS-forzisi-5
In Nagahiro 2023 et al., on quadriceps-femoral mismatch, which MPL grade was associated with significantly shorter quadriceps muscle length relative to femoral length?
🔍 Key Findings
- Quadriceps muscle length/femoral length ratio (QML/FL) was significantly lower in dogs with grade IV MPL than grades I–III (p ≤ .002).
- Shortened QML was associated with increased femoral torsion angle (FTA) and increased aLDFA, indicating correlation with femoral deformity.
- QML/FL increased with age, possibly due to muscular development or reduced deformity in older dogs (p = .004).
- Grade IV MPL dogs had QML/FL < 0.87, the lower normal limit based on healthy beagles, suggesting clinically significant muscle shortening.
- PLL/PL ratio (used to diagnose patella alta) was not associated with QML/FL or MPL severity in small breeds.
- QML/FL can help preoperatively identify candidates for femoral shortening ostectomy, improving femoropatellar alignment.
- Multivariate regression model confirmed QML/FL is independently influenced by age, FTA, and aLDFA (R² = 0.45).
- CT-based 3D measurements enabled objective, noninvasive quantification of femoral and muscle alignment parameters.
Veterinary Surgery
4
2023
Evaluation of the quadriceps muscle length to femoral length ratio in small breed dogs with medial patellar luxation
2023-4-VS-nagahiro-1
Quiz Results
You answered 7 out of 10 questions correctly
Key Findings
