🔍 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

• Plate–Pin TTT fixation resolved MPL in 64/65 stifles with low recurrence (1.5%) and good lameness outcomes postoperatively.
• Complication rate was 21.5% (14/65 stifles), mostly minor (57%); major issues included pin migration, fracture, or capsular failure.
• Pin-related issues accounted for 8 of 20 total complications, highlighting implant refinement is needed.
• No avulsions, TT fixation failures, or luxation recurrence occurred in cases where surgical technique was followed precisely.
• Surgical deviations increased complication risk 11.3× (p < 0.05), suggesting adherence to protocol is critical.
• Single-session bilateral MPL surgery had comparable complication rate (3/20) to unilateral surgery (11/45).
• Screw breakage occurred in 3 cases, suggesting at least 3 screws may be needed for secure TT fixation.
• Authors suggest temporary pin fixation and later removal may reduce complications, though prospective studies are needed.

🔍 Key Findings

Study type: Cadaveric stifle arthroscopy in large breed dogs (n=12 joints from 6 dogs)
Goal: Describe and assess the proximal lateral portal for insertion of a Ventura stifle thrust lever (VSTL)
Main results:

• No damage to the long digital extensor tendon (LDE) with this portal
• VSTL could be placed without removing the arthroscope
• Portal creation time ~37 seconds (faster than previously reported)

Cartilage impact:

• Superficial iatrogenic articular cartilage injury (IACI) present in all specimens
• No difference in IACI between 5- and 10-minute lever durations
• Zone 4 (lateral femoral condyle) had significantly more damage than zones 1–3 (p < .05)

Conclusion: Portal was safe, repeatable, minimally invasive, and did not increase cartilage damage with up to 10-minute lever use

🔍 Key Findings

• Distal femoral shortening osteotomy (DFSO) enabled prosthesis reduction in all 4 dogs with irreducible luxoid hips undergoing total hip replacement.
• Median femoral shortening ratio was 13.8% (range: 10.7–15.3%) based on intraoperative tension needed for prosthesis reduction.
• Bone union was achieved in all cases post-DFSO, indicating good healing potential.
• Two major complications occurred: one prosthetic luxation and one aseptic stem loosening requiring explantation.
• One intraoperative fracture of the greater trochanter occurred during trial reduction before DFSO.
• DFSO did not result in neurovascular injury, even in cases with significant femoral head displacement (>4 cm).
• Radiographic planning with FHD index and intraoperative assessment were crucial for determining DFSO necessity.
• DFSO avoids complications linked to subtrochanteric osteotomy by preserving proximal femoral anatomy and allowing secure distal fixation.

🔍 Key Findings

• Objective: Evaluate feasibility and accuracy of 3D-printed patient-specific drill guides for iliosacral screw placement in cadaver dogs.
• N = 10 canine cadavers (20 hemipelves); screw placement done using fluoroscopic-assisted patient-specific guides (PSG).
• Median cortical breach grade: 0 (IQR 0–1) for all screws.
  19/20 screws breached sacral canal wall (all ≤ grade 2), but no screws breached canal contents (grade 3).
• Median trajectory deviation: 0.88° transverse, 0.72° dorsal.
• Procedure time: Median 7.2 minutes for guide placement and drilling.
• Conclusions: PSG-assisted screw placement was safe, accurate, and fast, offering clinical potential in pelvic trauma.

🔍 Key Findings

• Routine follow-up radiographs after MPL surgery influenced management in only 3% of asymptomatic cases.
• Isolated radiographic abnormalities were rare (3.3%) and even less likely to alter treatment unless accompanied by clinical concerns.
• Dogs with both radiographic changes and clinical/owner concerns had 32× higher odds of a management change (OR 32.16, P < .001).
• Lameness, NSAID use, or prior unplanned visits significantly increased the odds of altered post-op plans.
• Owner-reported concerns alone led to a change in only 1.6% of cases without corroborating clinical findings.
• Radiographic follow-up was deemed unnecessary in dogs without owner concerns or abnormal physical findings.
• Hands-on clinical exam remains critical, though video-based rechecks may aid triage in uncomplicated cases.
• The study supports selective radiographic follow-up, reducing unnecessary imaging, stress, and clinician workload.

🔍 Key Findings Summary

• Finite element analysis compared intact radii vs. locking plates placed 1 mm or 3 mm above the bone
• LP placement significantly reduced tensile (maximum principal) stress on cranial cortex, potentially causing implant-induced osteoporosis
• Shell element findings:
  • Max principal stress significantly lower in both LP groups vs. intact (p < 0.05)
• Solid element findings:
  • Equivalent stress higher and max principal stress lower in LP groups
• Implication: Tension reduction may impair bone remodeling; implant design and placement height affect stress environment

🔍 Key Findings

• Both patient-specific and universal guides yielded correction errors <2°, with no statistically significant difference in accuracy.
• Universal guide corrected aLDFA up to 24° and AA up to 20°, addressing multiplanar deformities effectively.
• Patient-specific guides allowed for preoperative simulation, providing more stable pin placement and potentially aiding less-experienced surgeons.
• Universal guide eliminated the need for CT-based customization, reducing time and cost.
• Cadaver and bone model trials showed consistent accuracy, validating both methods in vitro and ex vivo.
• No significant differences in outcome when correcting uniplanar (aLDFA) vs biplanar (aLDFA + AA) deformities.
• Universal guide's fixed size presented limitations in small dogs, potentially requiring multiple size options.
• Universal guide showed potential for standard use, offering repeatable outcomes with minimal prep despite needing precise intraoperative placement.

🔍 Key Findings

Subject: 7-year-old Labrador underwent cementless total knee replacement (TKR) due to severe stifle OA.

Clinical function:

• Improved ROM from 90° pre-op to 120° post-op.
• Weight-bearing increased from toe-touching to 70% bodyweight by 6 weeks post-op.
• No visible lameness by 14 weeks.

Implant performance:

• No complications at any follow-up points.
• No osteolysis, loosening, or metallosis at 6-year necropsy.

Wear evaluation:

• Mild UHMWPE insert wear, localized to caudal edges.

Histologic findings:

• Robust osseointegration at implant-bone interface.
• Fibrous tissue only in areas lacking porous coating.

Conclusion:

• Cementless TKR demonstrated excellent 6-year survival and functional outcomes.
• Support for considering early surgical intervention in severe stifle OA.

🔍 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.