🔍 Key Findings

• Patient-specific 3D-printed PCL/β-TCP scaffold enabled successful zygomatic arch reconstruction in a dog.
• Complete surgical resection of a zygomatic parosteal osteosarcoma was achieved, with a 0.3 mm histologically clean margin.
• Post-op imaging showed progressive tissue ingrowth into the scaffold, with Hounsfield Units increasing from 20.4 to 97.8 over 10 months.
• No complications (e.g., infection, displacement) or tumor recurrence were noted at 16-month follow-up.
• Use of a patient-specific osteotomy guide improved anatomical fit and facilitated precise excision and implant placement.
• Facial symmetry and orbital stability were maintained throughout follow-up.
• The scaffold remained structurally stable despite limited bone regeneration, suggesting connective tissue filled the defect.
• Topical mitomycin C was applied intraoperatively for possible anti-neoplastic effect, but efficacy remains unclear.

🔍 Key Findings

50 dogs underwent bilateral anal sacculectomy using a modified closed technique.
Intraoperative anal sac perforation occurred in 5 dogs (10%), with no postoperative complications in those dogs.
Postoperative complications (43 dogs with follow-up):

• Grade 1 (e.g., scooting, inappropriate defecation): 14/43 (32%)
• Grade 2 (medical treatment needed): 2/43 (5%)
• Grade 3B (revision surgery): 2/43 (5%)

93% of grade 1 and 100% of grade 2–3B complications resolved by two weeks postop.
Technique highlights: direct duct tracking, no anal sac packing, minimal dissection.

🔍 Key Findings

• 78% of cats that developed postattenuation neurologic signs (PANS) after congenital portosystemic shunt (cPSS) surgery survived to 30 days.
• Postattenuation seizures (PAS) were associated with significantly decreased 30-day survival (50% vs. 78%; OR: 0.015, p = .005).
• Treatment of PANS with propofol was a negative prognostic factor (OR: 0.112, p = .0008).
• Generalized PAS accounted for most seizure cases and were more frequently fatal than focal or unknown-type seizures.
• Pretreatment with levetiracetam (LEV1 protocol) showed a trend toward improved survival (100% vs. 60.6% in untreated cats), though not statistically significant (p = .06).
• Shunt morphology, method of attenuation, and study period (early vs. late) were not significantly associated with 30-day survival.
• Electrolyte, glucose, and ammonia abnormalities were not strongly linked to survival outcomes in this study.
• Majority of PAS-related deaths were due to uncontrolled generalized seizures or euthanasia because of severity.

🔍 Key Findings Summary

• Biomechanical study on 14 hindlimbs from Retrievers (cadaveric)
• Three stifle flexion angles tested: 125°, 135°, and 145°
• Contact Force Ratio (CFR) was significantly higher at 125° and 135° than at 145° (p < 0.001)
• Center of force shifted caudally with increasing flexion — especially in medial meniscus
• Lateral meniscus peak pressure was significantly higher at 125° than 145° (p = 0.049)
• Mean pressures on lateral meniscus decreased with extension, while medial meniscus pressure remained constant
• Relevance: Helps interpret meniscal load in early cruciate disease and in surgical modeling

🔍 Key Findings Summary

• 22 dogs (36 shoulders) with shoulder OCD randomly assigned to COPLA scaffold (n=19) or Control (n=17) group
• At 6 months: Significantly fewer dogs in COPLA group had OA (14% vs. 67%; p = 0.019)
• At 1.5 years: OA prevalence increased in both groups with no significant difference (COPLA: 64%, Control: 60%)
• HCPI (pain index) increased significantly at 1 week post-op in COPLA dogs only (p = 0.001), but later normalized
• Static weight-bearing improved only in unilaterally operated COPLA limbs (p = 0.015)
• One dog in COPLA group had a fragment dislodge requiring arthroscopic removal
• Overall, COPLA scaffold may provide short-term benefit in OA reduction, but long-term outcomes were similar

🔍 Key Findings

• Left fourth intercostal thoracotomy allowed successful thoracic duct (TD) ligation in 9/10 canine cadavers.
• 10/13 clinical cases had a single TD branch at the left fourth intercostal space, indicating lower anatomical complexity.
• All TD branches at this site were lateral to the esophagus, simplifying surgical access.
• Unilateral subphrenic pericardiectomy was successfully performed via the same incision in 10/10 cadavers.
• Fewer TD branches at the fourth intercostal space than traditional caudal sites may reduce the risk of missed collaterals.
• In contrast, traditional caudal TD ligation sites had up to 5 branches, requiring broader dissection.
• No cadaver had right-sided TD branches, reducing surgical complexity at the studied location.
• Contrast-confirmed ligation was effective in 90% (9/10) cadavers on CT imaging.

🔍 Key Findings

• TPLO mRUST scoring showed improved inter-rater reliability (ICC = 0.56) compared to subjective evaluation (Kappa = 0.33).
• Intra-rater reliability was similar for both methods (TPLO mRUST: 0.73, subjective: 0.72).
• TPLO mRUST scores ≥10/12 strongly correlated with radiographic union, as subjectively assessed (99% agreement).
• No significant difference in healing between first and second TPLO sides (P = .09), countering assumptions about load-bearing impact.
• Higher initial lameness scores and younger age were associated with higher TPLO mRUST scores, suggesting more robust healing in those groups.
• Postoperative complications were linked to lower TPLO mRUST scores, indicating impaired healing.
• Medial cortex was excluded from scoring due to plate obstruction, validating use of only 3 cortices for scoring.
• The TPLO mRUST system may standardize healing assessment, reducing subjective bias across specialties.

🔍 Key Findings

• Fluoroscopy-guided osteotomy placement achieved a median postoperative TPA of 3° (range: 0–4.5°), showing excellent accuracy.
• The D1 measurement (from patellar ligament insertion to osteotomy exit) was more reproducible and accurate intraoperatively than D2.
• Median R1 value (D1-based) matched the intended 21 mm radius with only 0.5 mm deviation, while R2 deviated by 2.5 mm.
• Real-time fluoroscopy allowed dynamic limb positioning and reduced osteotomy placement variability.
• Intraoperative fluoroscopy reduced reliance on preoperative planning, especially in cases with difficult anatomy or positioning.
• Radiation exposure was minimal (avg. 3 images per case) and within safe limits using standard protection protocols.
• Study standardized to 21 mm blades and excluded dogs with developmental orthopedic conditions to reduce confounders.
• Targeting a lower postoperative TPA (3°) may reduce meniscal load and cranio-caudal instability, though long-term outcomes require further study.

🔍 Key Findings

• Tracheal anastomoses in immature dogs failed at significantly lower distraction forces (44.91 ± 59.03 N) than in adults (149.31 ± 45.36 N; _P_ = .007).
• Immature tracheae tolerated significantly more elongation before failure (39.75 ± 5.45%) than adult tracheae (30.57 ± 7.19%; _P_ = .0012).
• All constructs failed by suture tearing through the annular ligament, primarily near the dorsal tracheal ring.
• Overlapping of tracheal ends was seen in 50% of specimens across both age groups, suggesting limitations in tissue apposition with the chosen technique.
• Simple continuous pattern using 2-0 polypropylene was used; this pattern provides superior tensile strength compared to simple interrupted, but apposition may be suboptimal.
• Tracheal elasticity in immature dogs may allow longer resections, but the lower tensile strength necessitates reinforcement.
• Annular ligament-cartilage technique with 4-mm suture spacing showed variable results; smaller bites and nylon suture may improve outcomes.
• Ex vivo setup using frozen-thawed tracheae is a limitation, but prior studies support comparability with fresh tissue.

🔍 Key Findings

• 3D-printed patient-specific guides (PSGs) improved tibial cut alignment in the frontal plane compared to generic guides (mean error 1.03° vs 2.41°, p = .036).
• All tibial cuts using PSGs were within 3° of target alignment, while 2/8 of the generic group were outliers.
• PSGs significantly improved sagittal alignment of both distal (p = .018) and cranial (p = .043) femoral cuts.
• No significant difference was found in varus-valgus femoral alignment or closing angle between PSG and generic guide groups.
• Tibial sagittal slope alignment was not significantly different between groups.
• PSGs provided better intraoperative usability, including improved visibility, no loosening, and ease of use.
• Femoral sizing and component fit were equivalent between PSGs and generic guides, ensuring proper prosthesis alignment.
• PSGs may offer training advantages for novice surgeons, especially in anatomically complex or deformed joints.