🔍 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:

• Sample: 24 canine cadavers, 477 total pins across 240 vertebrae.
• Technique Comparison: 3D printed guides (3DPG) vs freehand (FH).
• Acceptable Placement Rates: 3DPG = 87.5%, FH = 69.8% (p < .0001).
• Odds Ratio for FH: 0.28 (95% CI 0.16–0.47), significantly less likely to yield acceptable placement.
• Worst Accuracy Locations: T10 (OR 0.10), T11 (OR 0.35).
• Surgeon Impact: Surgeon 2 outperformed others (OR 9.61, p = .001).
• Modified Zdichavsky Classification used to score implant accuracy (Grades I–IIIb).
• Primary Benefit of 3DPG: Increased safety and precision, regardless of surgeon experience.

🔍 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

• 3D-printed, SOP plate-specific guides enabled safe screw placement from T12–L5 in canine cadavers and models.
• All 140 screw trajectories were classified as Zdichavski Grade 1, indicating optimal placement without vertebral canal breach.
• Screw angles (cranial-caudal and transverse) matched preoperative planning, with no significant deviation.
• Entry/exit point deviations were <1 mm on average, deemed clinically negligible.
• Drill guides were quick to place (<30 sec per vertebra) and improved ease of surgery.
• Plates acted as effective reduction tools, guiding alignment during screw placement in mobile spines.
• Minor technical challenges arose from cadaveric spine mobility, mitigated by sequential screw insertion.
• Technique may enable future use in fracture/luxation reduction, pending further cadaveric and clinical trials.

🔍 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

• 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

• Ilio-sacral lymphadenectomy had the highest complication rates: intraoperative (7%) and postoperative (41%)
• Axillary lymphadenectomy showed the lowest complication rates: intraoperative (1%) and postoperative (16%)
• Enlarged or metastatic lymph nodes were significantly associated with intraoperative complications (p = .030)
• Postoperative complications were mostly minor (Grade 1) and self-limiting (seromas, edema)
• Medial retropharyngeal lymphadenectomy had intermediate complication rates: postoperative complications in 26%
• No significant predictors retained significance in multivariate analysis
• Use of methylene blue was associated with fewer complications, although not statistically significant
• Complication rates did not result in mortality, and all were manageable; MST was 374 days

🔍 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

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

• External skeletal fixation (ESF) was successfully applied to a variety of pelvic fracture types in cats, including sacroiliac luxations and ilial body fractures.
• All fractures achieved radiographic union within 9 weeks, even in comminuted or complex configurations.
• No intraoperative or long-term complications were reported during the study period.
• Implant loosening was observed radiographically in 13% of cases, with 8% of pins found to be loose at frame removal.
• ESF enabled indirect fracture reduction using components as handles, with a limited open approach minimizing soft tissue disruption.
• No iatrogenic neurological deficits were observed, supporting safe pin placement near neurovascular structures, although some cats presented with pre-existing neurologic signs.
• No cases required revision surgery, and all cats underwent stabilization solely with ESF as per study inclusion criteria.
• Postoperative hospitalization ranged from 2 to 5 days, though no comparison to other fixation types was evaluated.