
Your Custom Quiz
In Kershaw 2025 et al., on PSG vs AD, which directional deviation was more common in screws placed using the aiming device?
🔍 Key Findings
- 3D-printed patient-specific guides (PSGs) significantly improved accuracy of drill hole entry (p < 0.001) and exit (p = 0.044) compared to commercial aiming devices (AD).
- Zero joint penetrations occurred with PSGs, whereas 3 of 7 AD-guided screws were predicted to penetrate the joint (p = 0.19).
- Variance in exit point and drill angle was significantly lower in PSG group, suggesting more consistent results.
- One PSG case failed due to improper guide seating, but this was corrected with improved soft tissue clearance.
- PSGs enabled safer trajectories despite use by novice surgeons, emphasizing their value in less experienced hands.
- Drill holes placed with ADs deviated more cranially and distally, increasing the risk of articular violation.
- Use of PSGs allowed for tighter clustering of drill trajectories, especially in the cranial–caudal axis.
- Subjective feedback favored PSGs for ease of use and ergonomic design, despite requiring slightly larger incisions.
Veterinary and Comparative Orthopaedics and Traumatology
5
2025
Patient-specific Guides Improve the Accuracy and Safety of Transcondylar Screw Placement—A Cadaveric Study in the Canine Humerus
2025-5-VCOT-kershaw-4
In Scharpf 2026 et al., on radioulnar joint morphology, which measurement points showed significantly decreased radioulnar ratios in MCD elbows?
🔍 Key Findings
- Dogs with MCD demonstrated significant radioulnar joint malformation in the central, centrolateral, and lateral compartments on transverse CT imaging.
- Radioulnar ratios were significantly decreased at measurement points 3–5 in MCD elbows (p = 0.044), indicating widening and incongruity of the radioulnar joint space.
- Medial and mediocentral radioulnar compartments remained congruent, showing no significant differences between MCD and control elbows.
- Radioulnar opening angle did not differ between groups, suggesting that joint malformation was localized rather than reflected by global angular changes.
- No evidence of radioulnar step formation was identified, despite previous theories linking step incongruity to MCD development.
- Gender, breed, and body weight were not associated with radioulnar ratios, suggesting morphology rather than demographic factors influenced findings.
- Central and lateral radioulnar pathology may be missed during routine medial elbow arthroscopy, potentially contributing to persistent clinical signs after treatment.
- Radioulnar malformation may contribute both to MCD pathogenesis and to incomplete success following arthroscopic treatment.
Veterinary and Comparative Orthopaedics and Traumatology
3
2026
Assessment of the Conformation of the Radioulnar Joint Comparing Dogs with and without Medial Coronoid Disease
2026-3-vs-scharpf-2
In Wilson 2025 et al., on acetabular measurement accuracy, which pair of measurement methods showed the least bias in predicting final cup size?
🔍 Key Findings
Study population: 73 hips from 60 dogs undergoing cementless THR.
Methods evaluated:
- ACVD/ACOLL (acetabular circle on VD or OLL view)
- ALVD/ALOLL (acetabular line)
- FHCVD/FHCOLL/FHCCCHB (femoral head circle)
- Intraobserver repeatability and interobserver consistency were excellent for ACVD and ACOLL.
- FHC methods consistently underestimated actual cup size by 2.4–3.6 mm.
- AC and AL methods had low bias (±0.5 mm) and better predictive value.
- OA severity negatively affected the accuracy of all measurements (p < .05).
- Highest predictive accuracy was ~49% using ACVD with rounding down protocol.
Veterinary Surgery
1
2025
Evaluation of three acetabular measurement methods for total hip replacement in dogs
2025-1-VS-wilson-5
In Anderson 2024 et al., which clinical sign was consistently observed in all affected dogs?
🔍 Key Findings Summary
- 3 dogs developed permanent fibular nerve dysfunction following TPLO
- Common findings:
- Drill hole or screw in caudal tibial cortex just distal to osteotomy
- Caudal malpositioning of TPLO plate (esp. right limb of case 3)
- Post-op signs: cranial tibial atrophy, knuckling, exaggerated gait, no hock flexion
- One case had confirmed deep/superficial fibular neuropathy via electrodiagnostics
- Recommended prevention: avoid overly caudal drill paths; careful gait assessment at follow-up is key
Veterinary and Comparative Orthopedics and Traumatology
3
2024
Permanent Iatrogenic Fibular Nerve Injury following Tibial Plateau Levelling Osteotomy
2024-3-VCOT-anderson-2
In Kang 2023 et al., on 3DEP accuracy, what was the maximum acceptable screw intrusion depth into the spinal canal based on design?
2023-8-VS-kang-3
In Isono 2025 et al., on tibial malalignment in MPL, which of the following was TRUE regarding the correlation findings?
🔍 Key Findings
- Proximal Tibia Metatarsal Angle (PTMTA) was significantly increased in dogs with grade 3 and 4 MPL, making it a useful marker for severity.
- PTMTA strongly correlated with Tibial Torsion Angle (TTA) (r = 0.733) and Crural Rotation Angle (CRA) (r = 0.643), integrating multiple morphological deformities.
- Grade 4 MPL cases showed significant internal tibial torsion, increased mMPTA, and decreased MDTT/PTW—indicating both rotation and medial displacement.
- DTMTA was significantly more negative in grade 4, indicating a consistent pattern of internal foot rotation with disease severity.
- PTMTA can be visually assessed during palpation, offering preoperative utility without CT.
- Among toy poodles, PTMTA showed significant differences even between grades 3 and normal, suggesting breed-specific severity patterns.
- Corrective osteotomy may need to address tibial as well as femoral deformities in severe MPL cases with high PTMTA.
- Younger dogs with grade 4 MPL had more severe deformities, possibly due to early onset or developmental progression.
Veterinary and Comparative Orthopaedics and Traumatology
4
2025
Tibial Torsion Malalignment in Small Dogs with Medial Patellar Luxation
2025-4-VCOT-isono-5
In Logothetou 2024 et al., on SPF complications, which anatomic site for SPF reconstruction was associated with the fewest complications?
🔍 Key Findings
- Complication rate for subdermal plexus flaps (SPFs) in dogs was 53.6%.
- Skin staples had a numerically higher complication rate (72.2%) than sutures (49.3%), but not statistically significant due to small sample size.
- Most common complication was wound dehiscence (35%), followed by seroma (14%) and wound discharge (14%).
- Increased body weight was significantly associated with higher complication risk (OR = 1.056 per kg; p = .029).
- Advancement flaps were associated with a lower incidence of complications on univariable analysis (p < .001).
- Head region flap closures had fewer complications, while proximal pelvic limb closures had the highest complication rate.
- Age was a risk factor—each additional year increased odds of complications (OR = 1.019; p = .004).
- Closure technique did not significantly influence complication severity, though staple use was numerically worse.
Veterinary Surgery
3
2024
Complications and influence of cutaneous closure technique on subdermal plexus flaps in 97 dogs (2006–2022)
2024-3-VS-logothetou-3
In Perez Neto 2025 et al., on hip resurfacing arthroplasty, implantation of the prosthesis reduced maximum load by approximately what percentage compared to controls?
🔍 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-1
In Rocheleau 2024 et al., on arthroscopic meniscal suturing, what was the overall complication rate?
🔍 Key Findings
- Arthroscopic meniscal suturing was performed in 43 client-owned dogs, involving 44 meniscal repairs (one dog was bilateral). All injuries involved the caudal horn of the medial meniscus and were associated with cranial cruciate ligament (CrCL) disease.
- All dogs underwent simultaneous TPLO, with some also receiving an internal brace (IB). Most repairs used simple vertical mattress sutures.
- The overall complication rate was 34.1% (15/44). Most complications were attributed to the TPLO/TPLO+IB and did not compromise the meniscal repair outcome.
- No median time to “acceptable” or “full” function was reported, but most dogs showed improvement in lameness and LOAD scores (p < .001), indicating good to excellent outcomes.
- Meniscal repair success rate was 88% (38/44), with TPLO + IB outperforming TPLO-only (93.3% vs 71.4%). Follow-up was performed at 8 weeks (40 dogs) and 6 months (16 dogs).
- Six failures occurred, all managed with arthroscopic meniscectomy, leading to normal activity in those dogs. Two IB-associated failures led to CrCL instability.
- The authors concluded the technique was safe, practical, and effective, with a reasonable complication rate.
- The findings support arthroscopic suturing as a feasible alternative to meniscectomy or meniscal release, offering long-term benefits for preserving the meniscus.
Veterinary Surgery
5
2024
Short‐term outcomes of 43 dogs treated with arthroscopic suturing for meniscal tears
2024-5-VS-rocheleau-2
In Perry 2025 et al., on I-Loc fracture fixation, what technical recommendation was emphasized for tibial fractures?
🔍 Key Findings
- High union rate with low complications was achieved using the I-Loc angle-stable interlocking nail across 243 canine long-bone fractures.
- Mean time to clinical union was 8.3 weeks, faster than many historical plate-rod or non-angle-stable nail reports.
- Major complications occurred in only 5.3% and minor complications in 9.1% of cases.
- Most fractures were diaphyseal (75%) and comminuted (62%), demonstrating effectiveness in complex fracture patterns.
- Ancillary implants were uncommon (21%), mainly used in epi-/metaphyseal fractures or for anatomic reconstruction.
- Postoperative missed bolt rate was very low (0.94%), reflecting improved targeting accuracy.
- Open fractures carried a substantially higher risk of SSI and implant removal compared with closed fractures.
- Prebending of tibial nails was strongly recommended to follow natural recurvatum and avoid iatrogenic alignment errors.
Veterinary Surgery
8
2025
Outcomes of 243 dogs with traumatic fractures treated with the I-Loc interlocking nail
2025-8-VS-perry-5
Quiz Results
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Key Findings
