🔍 Key Findings

• Transecting the CCL remnant during TPLO did not reduce patellar ligament thickening (PLT) at any measured point (proximal, mid, distal).
• Transection also failed to reduce postoperative patellar ligament shortening (PLL) at 6 weeks.
• Both groups (transected vs non-transected) showed significant thickening and shortening, with greatest PLT increase at the midpoint.
• Increased PLT was positively correlated with tibial plateau rotation (p = 0.02) and postoperative TPA (p = 0.04).
• No correlation between TT-O (tibial tuberosity width index) and PLT, suggesting narrow osteotomies did not influence PLT in this population.
• Partial CCL rupture was not significantly protective; dogs with partial tears still developed ligament thickening.
• Post-TPLO mid-patellar ligament thickening may relate to Gelpi retractor placement and osteotomy mechanics rather than CCL status.
• Authors do not recommend CCL transection during TPLO to prevent desmitis, citing possible increased instability and degeneration.

🔍 Key Findings

The study included 162 deep-pain-negative dogs undergoing decompressive surgery (hemilaminectomy) for acute thoracolumbar intervertebral disc extrusion (IVDE).

Ambulatory recovery occurred in 53.1% of dogs (86/162).

The best performing machine-learning model was XGBoost, with an AUC of 0.9502 and accuracy of 89.1%, outperforming Ridge, AdaBoost, and Naive Bayes models.

Preoperative-only XGBoost models were less accurate, with AUC dropping to 0.8271 and accuracy to 71.9%.

Top predictive features (by SHAP analysis) included:

1. T2-weighted to L2 spinal cord signal ratio (lower values predicted better outcome)
2. Use of fenestration (presence associated with better recovery)
3. Hospitalization duration
4. Imaging modality used
5. Duration of nonambulatory status

Machine learning provided better insight into prognostic factors than traditional statistical methods.

🔍 Key Findings:

• Design: Ex vivo study with 24 paired limbs from normal beagle dogs.
• Osteotomy types (3 groups):
  1. 30° uniplanar frontal wedge
  2. Oblique (30° frontal, 15° sagittal)
  3. Single oblique (30° frontal, 15° sagittal, 30° external rotation)
• Comparison: 3D PSG vs Freehand (FH)
• Main Outcomes:
  • PSG accuracy: Mean angular deviation = 2.8° vs 6.4° in FH (p < .001).
  • 84% of PSG osteotomies were within 5° of target vs 50% of FH.
• Significant improvements with PSG in:
  • Group 1 (uniplanar frontal) proximal and distal frontal planes (p < .001, .006)
  • Group 3 (SOO) frontal and sagittal planes (p = .002, .043)
• Time: PSG faster in complex SOO group (84s vs 162s, p < .001); no difference in others.
• No difference in osteotomy location (mm) between methods.
• Clinical relevance: PSG more consistent and accurate, especially for complex cuts.

🔍 Key Findings

• Pedicle screw placement in feline thoracolumbar vertebrae using patient-specific 3D-printed drill guides was highly accurate, with a mean deviation from planned trajectory of 0.61° ± 0.72.
• Overall pedicle containment rate was 93% (grade 0), with only 5.5% minor breaches (<0.5 mm) and 1.5% moderate breaches (0.5–1 mm).
• Thoracic vertebrae demonstrated perfect safety (48/48 grade 0), whereas all breaches occurred in the lumbar vertebrae (p = 0.02).
• All pedicle breaches were lateral, and no medial breaches or spinal canal violations occurred in the study.
• Accuracy did not differ between breeds (Maine Coon vs mixed-breed) or sides (left vs right), suggesting consistent guide performance across anatomical variations.
• 3D-printed drill guides allowed minimal surgical exposure, requiring access only to the dorsal lamina rather than lateral vertebral surfaces.
• Pedicle screw constructs may facilitate dorsal PMMA application, enabling easier cement placement and bilateral incorporation of screw heads.
• A clinical proof-of-concept case (T12 fracture) treated with pedicle screws and dorsal PMMA stabilization showed accurate implant placement without perioperative complications.

🔍 Key Findings

• Adding a single locking throw significantly increased holding security for specific knots, including the surgeon's throw (p = .0001) and square throw (p = .0002).
• For the Miller's throw (p = .166) and strangle throw (p = .808), no significant improvement was observed with a locking throw.
• After locking throw addition, all five knots leaked at similar pressures (p = .5233), and these pressures exceeded physiologic arterial pressures.
• Surgeon's throw without a locking throw had the lowest leak pressure (62.5 ± 46.2 mm Hg), below physiologic arterial values.
• The square throw without locking also leaked below physiologic pressures (148.7 ± 109.4 mm Hg), though it outperformed the surgeon's throw.
• Miller’s and strangle throws performed significantly better than square or surgeon’s throws without locking, achieving leak pressures >200 mm Hg.
• All knots used 2-0 polyglyconate monofilament (Maxon); no comparisons across suture types or sizes were performed.
• Authors concluded that correct tensioning and locking throw addition are key to safe vascular ligation. Miller’s, strangle, or slip knots are preferred for challenging surgical fields.

🔍 Key Findings

• Oxley's modified CCWO did not achieve the target TPA of 5° in most cases, even with planning.
• Mean planned TPA was 7.6°, higher than target, and consistent across dog sizes.
• Postoperative TPAs were significantly higher in small dogs (median 7°) than in large dogs (median 4.5°).
• Distalization >7.5 mm of the osteotomy from the patellar tendon led to increased under-correction of TPA.
• Only dogs with preoperative TPA >35° achieved post-planning TPAs close to the 5° target.
• Postoperative osteotomy positions were generally more distal than recommended (8.6 mm median).
• Virtual plate fit was appropriate for all dogs at 5 mm or 7.5 mm positions, suggesting no need for excessive distalization.
• Excessive correction leading to negative TPAs occurred in some cases, risking caudal cruciate ligament strain.

🔍 Key Findings

• Minimally invasive fluoroscopic technique yielded median reduction of 94.1% immediately postoperative.
• Screw purchase ≥60% in sacral body achieved in 82% of cases, with median purchase of 73.3%.
• One screw exited caudally; no dorsal, ventral, or cranial exits reported.
• At 7-week follow-up, reduction and purchase slightly declined but remained effective (p = .008 and p = .013).
• No screw loosening observed, even in suboptimal reductions or purchases.
• Pelvic canal width and symmetry (PCDR and HCWR) were restored and maintained.
• Excellent long-term function: FMPI ≥0.98 in 9 of 10 cats; owners reported 10/10 satisfaction.
• Fluoroscopy enabled accurate screw placement and minimized tissue trauma, contributing to rapid recovery.

🔍 Key Findings

• Double plate fixation significantly increased construct stiffness (563.7 vs 392.8 N/mm; p < .0001), supporting superior biomechanical stability
• Displacement was significantly reduced with double plating (−0.48 mm vs −0.81 mm; p < .0001), indicating improved resistance to cyclic loading
• No difference in primary plate strain between single and double constructs, suggesting load-sharing did not reduce plate stress
• Caudolateral placement of the second plate enhances biomechanical advantage by increasing moment arm and resisting tensile forces
• Cyclic loading model (7200 cycles) simulated 1 hour of walking, making findings clinically relevant to early postoperative activity
• Strain across fracture gap was lower in double plate constructs (~4.3% vs ~6.9%), supporting improved conditions for fracture healing
• No construct failures occurred, but actuator slippage occurred only in double plate group, highlighting potential testing/artifact considerations
• Clinical implication: double plating may allow earlier weightbearing and reduce need for external coaptation, improving recovery outcomes

🔍 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.

🔍 Key Findings

• Prestretching (PS) at 10 mmHg for 3 minutes significantly increased working space at 6 mmHg IAP — IWL +4.4%, IWS +6.9%.
• PS provided ≈63% of the IWL and ≈66% of the IWS gains achieved with sustained 10 mmHg IAP.
• All laparoscopic procedures were completed at 6 mmHg after PS; no conversions or pressure increases were needed.
• Working space benefits persisted throughout surgery — end-of-procedure measurements were unchanged from post-PS baseline.
• Transverse expansion (RLAT/LLAT) was greater than sagittal (CRA/CAU), consistent with adult abdominal wall compliance.
• No adverse anesthetic events occurred; mild complications (e.g., gas leakage) were easily managed.
• Large breed dogs were overrepresented, but all dogs served as their own controls, normalizing size effects.
• Prestretching is a simple, effective technique to maximize working space without increasing insufflation pressure.