🔍 Key Findings Summary

• The lateral approach via scapular osteotomy allowed safe access to the T1-2 foramen in a French Bulldog with foraminal disc extrusion.
• A mini-hemilaminectomy was performed, preserving articular facets.
• The dog had no neurologic deficits postoperatively, returned to ambulation within 24 hours, and was discharged in 3 days.
• At 10 months, CT confirmed excellent scapular healing and no recurrence.
• Double 2.4-mm locking plates provided stable fixation across the scapular spine.
• The technique avoided thoracic entry or dorsal spine dissection, suggesting a less invasive alternative for select T1-2 foraminal cases.

🔍 Key Findings Summary

• Cadaveric study using 3 miniature breed dogs (6 hemipelves) to assess spinal neuronavigation accuracy for lumbar plate fixation
• 20 screws placed using CBCT-based navigation with real-time tracking
• 85% (17/20) of screws were safely and accurately placed
• Median deviation of screw entry points from plan: 1.8 mm
• All 3 misplaced screws occurred in a single cadaver, attributed to inexperienced drill handling
• Custom 3D-printed lightweight tracking array was necessary due to small spinous processes in miniature dogs
• No iatrogenic canal perforations or vertebral damage in any specimen
• Concludes neuronavigation offers precise, safe placement of spinal implants in small dogs, with minimal anatomic disruption

🔍 Key Findings Summary

• The lateral approach via scapular osteotomy allowed safe access to the T1-2 foramen in a French Bulldog with foraminal disc extrusion.
• A mini-hemilaminectomy was performed, preserving articular facets.
• The dog had no neurologic deficits postoperatively, returned to ambulation within 24 hours, and was discharged in 3 days.
• At 10 months, CT confirmed excellent scapular healing and no recurrence.
• Double 2.4-mm locking plates provided stable fixation across the scapular spine.
• The technique avoided thoracic entry or dorsal spine dissection, suggesting a less invasive alternative for select T1-2 foraminal cases.

🔍 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

• Each PLC significantly increased passive range of motion (ROM) in the sagittal and dorsal planes (p < .05).
• No significant change was observed in rotational ROM after either PLC.
• First PLC increased sagittal ROM by 2.4° (23% increase); second PLC added 1.0° (8% increase).
• Dorsal ROM increased by 2.3° after first PLC and 1.5° after second PLC.
• Second PLC did not cause greater destabilization than the first — both contributed similarly to ROM increase.
• Failure testing showed that spinal segments with two PLCs failed at 13 Nm, while native spines withstood up to 25 Nm, suggesting reduced load-bearing capacity but not clinically significant under normal conditions.
• Rotational stability was preserved, possibly due to intact facet joints and lamina, which play a larger role in rotation.
• Study supports the clinical feasibility of two consecutive PLCs, but cautions against excessive bone removal due to potential for spinal instability.

🔍 Key Findings

Population: 9 dogs underwent revision of osteointegrated acetabular cups after total hip arthroplasty (THA)

Revision Indications:

• 7 luxations (5 ventral, 2 craniodorsal)
• 1 femoral stem fracture
• 1 aseptic stem loosening

Implants:

• 8 BFX cups, 1 Helica; all revised to BFX
• 7/9 required a larger cup than original

Cup removal: Required sectioning with a high-speed burr and modular osteotome; removal fragments extracted

Complications:

• 1 recurrent luxation
• 1 low-grade infection with possible metallic debris-associated osteolysis
• 2 femoral fissures managed intraoperatively

Outcomes:

• Good to excellent function in 6/6 dogs available at median 621 days
• Minimal complications with success in re-osteointegration of new cup

Clinical takeaway: Revision of stable, ingrown cups is feasible and offers an alternative to pelvic osteotomies; typically requires upsizing

🔍 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.

🔍 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.

🔍 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.

🔍 Key Findings

• Spinal stabilization with 3D-printed patient-specific drill guides (3D-PSGs) was safe, with no immediate perioperative complications reported.
• 84% of pedicle screws were optimally placed, and only 0.5% breached the spinal canal, reflecting high placement accuracy.
• 80% of dogs experienced no neurologic deterioration postoperatively, indicating reliable short-term safety.
• 3D-PSGs were accurate and reproducible, even across multiple institutions and surgeons.
• Mid-term outcomes were favorable: all dogs were ambulatory, and 90% had static or improved neurologic signs.
• 7 of 10 mid-term follow-ups showed abnormal gait, though owners rated lifestyle ≥3/5, suggesting acceptable function.
• 3D-printed guides enabled precise pedicle screw placement in deformed vertebrae, expanding options in small breeds.
• One dog suffered a T4 spinous process fracture due to overextension of PMMA cement, emphasizing the need for cement placement caution.