🔍 Key Findings

• Luxoid hip dysplasia (LH) was present in 8% of THA cases and significantly increased risk of major complications (p < .001).
• Intraoperative fissures/fractures were 3x more likely in LH dogs vs non-LH (39% vs 16%, p = .001).
• Dorsal luxation was more frequent in LH dogs (28% vs 4%, p = .019).
• Acetabular cup placement with ALO >35° was associated with luxation in LH dogs.
• Morphologic abnormalities (e.g., femoral valgus, lateralization/medialization of cortices) were common in LH and may complicate implantation.
• Despite higher risk, 94% of LH dogs achieved satisfactory outcomes after appropriate revisions.
• Younger age and lighter weight characterized LH dogs (mean age 14.7 months vs 40.9 months, p < .001).
• All LH dogs were treated with cementless stems; prophylactic cerclage was rarely used.

🔍 Key Findings

• Zurich mini-cementless THA was successful in 9/10 hips in dogs <4 kg, with no lameness at 52 weeks in completed cases.
• Helsinki Chronic Pain Index significantly improved from a mean of 19.8 to 2.3 at 52 weeks (p = 0.0141).
• Fluoroscopy improved implant positioning, especially in LCPD and HD cases, aiding in accurate reaming and alignment.
• Intraoperative complications occurred in 2/10 cases, including acetabular fractures; one case required discontinuation.
• Prophylactic bicortical screws and reinforcement plates were used in cases with rotational instability or cortical compromise and were effective in preventing loosening/fractures.
• Medial patellar luxation improved postoperatively in one dog, though recurrence was noted later without surgical correction.
• No stem or implant loosening or fracture occurred over a mean follow-up of 24.4 months.
• CT is recommended in preoperative planning, particularly in luxoid hip dysplasia cases with uncertain bone stock.

🔍 Key Findings

• Locking plates (except ALPS-5) withstood significantly more cycles before failure than nonlocking DCP constructs.
• ALPS-6.5, LCP, and FIXIN plates endured higher loads and resisted displacement better than DCP and ALPS-5.
• ALPS-5 plates showed lower bending stiffness than all other constructs (P < .05).
• DCP constructs failed due to screw loosening, seen in all specimens.
• Locking constructs failed by bone slicing, affecting 100% of specimens.
• Catastrophic implant failure (fracture or plastic deformation) occurred only in ALPS-5 group.
• Plate size and screw-plate interface both influence resistance to cyclic loading in feline ilial fracture repair.
• Locking plates are preferable for reducing screw pullout, but plate strength (e.g., cross-section) must match loading forces.

🔍 Key Findings

• Double-loop cerclage resisted the highest peak load (805 N) and maintained tension longer than twist (488 N) and single-loop (397 N) configurations.
• Double-loop cerclage sustained 500,000 cycles at 60–80% of peak load in some cases without loosening, outperforming other types.
• Twist knots loosened rapidly, often within 10 cycles even at low loads (100–390 N).
• Single-loop knots performed better than twist, with partial resistance up to 100,000 cycles at 160 N, but showed wide variability.
• All loosening occurred before wire breakage, indicating clinical failure would happen from slack, not fracture.
• Double-loop cerclage had highest initial tension (323 N) compared to single-loop (124 N) and twist (69 N).
• Fatigue limit was not identified for twist, since they all loosened early at even 20% of peak load.
• Clinical recommendation: double-loop cerclage is best for resisting repeated subfailure loading, ideal for fissure prevention or fragment stabilization.

🔍 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

• Bending tees significantly increased mediolateral bending stiffness, but not craniocaudal stiffness, in plate-bone constructs.
• Mean mediolateral stiffness was 43.2 N/mm with tees vs. 41.1 N/mm without (p = 0.0042), though the absolute difference was small.
• No significant differences were found in craniocaudal bending stiffness between constructs with or without tees (p = 0.89).
• Plastic deformation occurred in all constructs; no screw pull-out or implant breakage was observed.
• SOP nodes may resist compressive but not tensile deformation, suggesting variable mechanical contributions depending on loading direction.
• Craniocaudal bending had greater stiffness than mediolateral due to higher area moment of inertia along the node diameter.
• Clinical relevance of added stiffness from tees remains unclear, warranting further in vivo and cyclic testing.
• This was the first study to directly test SOP constructs with/without tees over a fracture gap in multiple planes.

🔍 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.

🔍 Key Findings

Study population: 12 dogs with medial or lateral tarsocrural joint instability (TCI), including 5 working farm dogs.
Procedure: Temporary immobilization using a calcaneotibial screw (CTS) combined with external coaptation (EC).
Stabilization techniques:

• 3 dogs = primary ligamentous repair
• 8 dogs = synthetic ligament reconstruction
• 2 dogs = malleolar fracture repair

Follow-up: Median 31 months (range 4–66); 10 owners completed outcome survey.
Outcomes:

• All 10 dogs had improved or resolved lameness.
• All 5 farm dogs returned to work (most at full or substantial capacity).
• Complication rate: 4 distinct events in 3 dogs (1 major = CTS breakage; 3 minor = bandage-related soft tissue injuries).

Conclusion: CTS + EC provided effective immobilization with low complication rate, and functional outcomes were favorable even in active dogs.

🔍 Key Findings

• 42% of dogs (33/78) treated with Arthrex 3.5 mm STS during TPLO developed radiographic TCTF
• TCTFs occurred exclusively distal to the osteotomy
• 14% of screws (36/250) distal to the osteotomy were associated with TCTFs
• 6% of dogs with TCTFs developed major complications (e.g., complete tibial fracture requiring surgical revision)
• Angulation of cortical STS screws, especially in the distal plate holes, was a key contributor to complications
• Locking screws were also involved, but cortical screws angled improperly were overrepresented in serious outcomes
• Revision recommendations included preemptive fixation for large TCTFs or angulated screw placements
• Use of non-self-tapping screws (NSTS) previously showed a <1% TCTF rate, supporting higher risk with STS

🔍 Key Findings

• Raised eyelets caused more suture mid-section failures than embedded eyelets, suggesting wear or cutting against the anchor.
• No significant effect of cyclic loading on failure load (Fmax) was found for any anchor group.
• Anika anchor showed the least reduction in suture strength relative to the reference (eyebolt screw), indicating a favorable design.
• All sutures failed via suture breakage, not anchor pullout, indicating suture fatigue was the primary failure mode.
• Sutures in raised eyelets more often failed at the mid-section, while those in embedded eyelets failed at the knot.
• IMEX and Jorvet anchors showed significantly reduced Fmax compared to eyebolt screws.
• Loading direction and anchor design likely affect wear and ultimate failure, particularly in dynamic in vivo conditions.
• Future designs should aim for embedded, smooth eyelets that can accommodate larger suture sizes without increasing wear.