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In Parlier 2024 et al., on insufflation effects on portal pressure in dogs, what insufflation pressure was predicted to induce portal hypertension (>15 mmHg)?
🔍 Key Findings
- Portal pressure increased proportionally with insufflation pressure: 38% at 6 mmHg, 95% at 10 mmHg, and 175% at 14 mmHg.
- Exponential model: average increase of 7.45% per mmHg of insufflation pressure (CI: 4.7–10.2%).
- No systemic hemodynamic adverse effects were observed; MAP remained >60 mmHg throughout.
- Portal hypertension threshold (15 mmHg) predicted at ~6.4 mmHg insufflation pressure.
- No statistical impact from patient weight, pressure-to-weight ratio, or order of insufflation rounds.
- Measurement technique was feasible and safe, with only minor challenges (e.g., catheter kinking).
- The study supports use of the lowest insufflation pressure needed for visualization to avoid portal hypertension.
- Baseline portal pressures returned after desufflation, supporting comparison pre- and post-attenuation.
Veterinary Surgery
4
2024
Prospective, randomized, clinical trial on the effects of laparoscopic insufflation pressures on portal pressures in dogs
2024-4-VS-parlier-2
In Burkhardt 2024 et al., on coagulation testing in liver lobectomy, dogs with both PT and aPTT prolongation were how much more likely to undergo emergency surgery?
🔍 Key Findings
- 20.6% of dogs had a preoperative prolongation in PT or aPTT, but only 5.6% had both prolonged.
- Hemangiosarcoma was the only tumor type significantly associated with both PT and aPTT prolongation (37.5% of hemangiosarcoma cases, p < .001).
- Dogs with both PT and aPTT prolongations were 6.5× more likely to have emergency surgery (p < .001) and 2.5× more likely to have hemoabdomen (p = .0022).
- 60% of dogs with both PT and aPTT prolongation required blood transfusion (p < .001).
- Only 1.9% of all dogs had both PT and aPTT prolonged by >25%, suggesting limited clinical utility of routine PT/aPTT testing.
- Platelet count <50,000/μL was rare (1.5%) and not associated with PT/aPTT changes or transfusions.
- Routine PT/aPTT testing offers low diagnostic yield in elective liver lobectomy cases.
- Authors recommend case-by-case PT/aPTT screening, especially when hemangiosarcoma or bleeding tendencies are suspected.
Veterinary Surgery
7
2024
Evaluating preoperative coagulation panels in dogs undergoing liver lobectomy for primary liver tumors: A multi-institutional retrospective study
2024-7-VS-burkhardt-3
In Mattioli 2025 et al., on lymphadenectomy complications, what percentage of complications were classified as mild?
🔍 Key Findings
Sample: 201 lymphadenectomies in 163 dogs.
Intraoperative techniques:
- Unassisted: 36%
- Methylene blue (MB): 24%
- Gamma probe + MB (γ-MB): 40%
Complication rate: 7.5% overall (93% uncomplicated)
- 80% were mild, 20% moderate; no severe complications
- Most common = seroma (2.5%), lymphoedema (1.5%)
Risk factors (via decision tree model):
- Surgical time > 21.5 min
- Lymph node site = mandibular or retropharyngeal
No significant difference in complication rate based on:
- Guidance technique (p = .255)
- LN palpability, number removed, or LN size
Clinical implication: Peripheral SLN excision is safe regardless of intraoperative technique; certain sites and durations carry slightly higher risk.
Veterinary Surgery
4
2025
Peripheral sentinel lymphadenectomy in 163 dogs: Postoperative surgical complications and comparison between intraoperative dissection techniques
2025-4-VS-mattioli-5
In Huels 2025 et al., on second-generation screw cup THA, what was the primary functional outcome observed in dogs following SCSL THA?
🔍 Key Findings
- Total complication rate was 16.7%, with 5/30 hips experiencing major complications, mostly related to the femoral component.
- Cup-associated complications were rare (3.3%), with only one case of acetabular cup luxation attributed to surgical technique rather than implant failure.
- No cases of late aseptic loosening were observed during a median follow-up of 17.5 months.
- Implant stability was attributed to the SCSL's porous, trabecular titanium surface, enhancing osseointegration.
- Three femoral stem fractures occurred in a single dog, leading to implant removal; material testing was not performed.
- Most complications were femoral in origin (6/7), not acetabular, suggesting improved performance of the SCSL.
- Explantation rate was 13% (4/30), but some removals were due to owner preference against revision.
- Subjective functional outcome was full recovery in 26/30 hips, including one with successful revision of stem subsidence.
Veterinary and Comparative Orthopaedics and Traumatology
2
2025
Complications and Long-Term Outcome in 30 Canine Total Hip Arthroplasties Using a Second-Generation Selective Laser Melted Screw Cup
2025-2-VCOT-huels-5
In Dalton 2023 et al., on acetabular fracture repair, what was the most likely advantage of using locking screws during the procedure?
🔍 Key Findings
- Minimally invasive repair of acetabular fractures using precontoured plates on 3D-printed models is feasible and technically reproducible in dogs.
- All cadavers had fracture gaps <2 mm and step defects <1 mm, indicating accurate reduction.
- Sciatic nerve injury was minimal or absent in all cases, supporting potential neuroprotection from indirect approaches.
- Pelvic angulation was maintained <5°, confirming preservation of alignment post-reduction.
- Surgical time averaged ~46 minutes in cadavers for both approaches and repair.
- Clinical case showed good radiographic healing by 8 weeks and full union by 3 months, with early weight-bearing post-op.
- Use of locking screws improved reduction fidelity, particularly across a broad plate span.
- 3D printing accelerated surgical planning, though its necessity remains debated due to the availability and cost concerns.
Veterinary Surgery
6
2023
Minimally invasive repair of acetabular fractures in dogs: Ex vivo feasibility study and case report
2023-6-VS-dalton-2-323a1
In Buote 2023 et al., on 3D-printed cannulas in feline laparoscopy, what technical issue occurred with the 3DPC during live surgery case 1?
🔍 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.
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-4
In Thibault 2023 et al., on DPO for THR luxation, which of the following statements is TRUE regarding the effectiveness of DPO in preventing reluxation?
🔍 Key Findings
- Double pelvic osteotomy (DPO) reduced angle of lateral opening (ALO) by a median of 11° (p ≤ .001).
- Despite ALO correction, THR reluxation occurred in 5/11 dogs, often within 7 days post-DPO.
- Post-DPO ALO remained elevated (median 56°), with only 2 dogs achieving the recommended 35–45° range.
- Explantation was required in 7/11 dogs (5 aseptic loosenings, 2 infections), suggesting poor long-term implant survival.
- Dogs with luxoid hips were more likely to fail, even with corrected ALO, emphasizing soft tissue instability as a risk factor.
- Compared to TPO (23° correction), DPO yielded a smaller ALO correction, possibly due to older dog population and less elastic pelvis.
- No ventral luxation occurred post-DPO, unlike in TPO studies, likely due to more conservative ALO reduction.
- Authors do not recommend routine DPO for THR luxation due to high complication and failure rates.
Veterinary Surgery
8
2023
Poor success rates with double pelvic osteotomy for craniodorsal luxation of total hip prosthesis in 11 dogs
2023-8-VS-thibault-4
In Aldrich 2023 et al., on liposomal bupivacaine in TPLO, what conclusion was drawn about %BW distribution to the operated limb?
🔍 Key Findings
- Liposomal bupivacaine (LB) infiltration did not reduce the need for rescue analgesia compared with placebo in dogs undergoing TPLO.
- CMPS-SF pain scores were not significantly different between LB and placebo groups at any postoperative time point.
- % body weight distribution (%BWdist) to the operated limb did not differ significantly between treatment groups across all time points.
- No correlation was found between CMPS-SF scores and %BWdist, suggesting these metrics assess different aspects of postoperative pain.
- Postoperative carprofen administration was standardized, and LB did not provide additional detectable analgesic benefit.
- Three-layer infiltration technique (joint capsule, fascia, subcutis) was used consistently across all cases.
- Adverse events were minor and comparable between LB and placebo groups.
- Post hoc analysis suggested a much larger sample size (58–436 dogs) would be needed to detect significant differences in %BWdist.
Veterinary Surgery
5
2023
Blinded, randomized, placebo-controlled study of the efficacy of bupivacaine liposomal suspension using static bodyweight distribution and subjective pain scoring in dogs after tibial plateau leveling osteotomy surgery
2023-5-VS-aldrich-3
In Neal 2023 et al., on transcondylar screw placement, what was the observed rate of joint infringement when using the aiming device?
🔍 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.
Veterinary Surgery
4
2023
The effect of an aiming device on the accuracy of humeral transcondylar screw placement
2023-4-VS-neal-3
In Scheuermann 2023 et al., on MIPO with 3D-printed bone models, what was the tradeoff of using the FRS compared with IMP reduction?
🔍 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-2
Quiz Results
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