🔍 Key Findings

• Two short screws (SLS or SPS) provided >2× peak load, yield load, and stiffness vs a single long screw (LLS) for SI joint stabilization.
• No mechanical advantage was seen between the two short screw types (lag vs positional).
• All short screws terminated lateral to the spinal canal, avoiding spinal impingement.
• Ventral sacral foraminal impingement occurred in 3 short-screw cases (1 SPS, 2 SLS), all involving the caudal screw.
• LLS group showed more abaxial displacement at osteotomy sites, suggesting inferior stabilization for concurrent pelvic fractures.
• Short screw constructs had longer total screw length (48 mm) than LLS (40 mm), contributing to increased stiffness.
• Positioning of caudal screw in a cranial/craniodorsal trajectory may help avoid nerve foraminal injury.
• No significant difference in displacement at peak load among groups; stiffness and load capacity were the primary benefits.

🔍 Key Findings

• Locked facet injuries in dogs involved unilateral dorsal displacement of the cranial articular process of the caudal vertebra, most commonly at C5/6 or C6/7.
• All affected dogs were small/toy breeds, typically following trauma (most often attacks by larger dogs).
• Neurologic severity ranged from ambulatory tetraparesis to tetraplegia, often with thoracic limb deficits more severe than pelvic limbs — suggesting a central cord syndrome-like pattern.
• CT and MRI revealed axial rotation, subluxation, and articular process displacement; MRI showed T2 hyperintensity, nerve root impingement, and soft tissue changes.
• Surgical treatment included ventral fixation with screws, pins, and PMMA, and one case required dorsal facetectomy for reduction.
• Medical management, including external coaptation or rest, also resulted in functional recovery in select cases.
• All dogs with follow-up data (8/8) had functional recovery, with nonambulatory dogs regaining ambulation in a median of 4 weeks.
• No consistent differences in outcome were observed between surgical and nonsurgical management, suggesting locked facets may be biomechanically stable.

🔍 Key Findings

• TA lung lobectomy was feasible in dogs ≥3 kg, including those with lesions up to 10 cm.
• 12 intraoperative complications (40%) occurred, with 6 dogs (20%) converted to open thoracotomy, mainly due to adhesions or inability to isolate lobes.
• Postoperative complications occurred in 8 dogs (27%), most were mild (63%), and only 1 death (3%) was reported.
• Median hospitalization was 47 hours; 29/30 dogs were discharged successfully.
• One-lung ventilation (OLV) was attempted in 7 dogs but successfully maintained in only 4.
• Linear staplers had shorter surgery times (median 57.5 min) than endoscopic staplers (80 min).
• Histopathology confirmed neoplasia in 77% of cases, most commonly papillary and bronchioalveolar carcinoma.
• TA lobectomy allows MIS in smaller dogs or with large lesions, avoiding need for full thoracotomy or complex anesthesia/stapling.

🔍 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

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

• Feasibility study in 5 canine cadavers plus 1 clinical case (Chihuahua, 5.5 kg).
• Technique used two small approaches (caudal and craniolateral) connected with an epiperiosteal tunnel.
• Plates were precontoured on mirrored 3D-printed hemipelves to improve fit and reduce intraoperative bending.
• Cadaver outcomes: fracture gap <2 mm, step defect <1 mm, pelvic angulation <5°.
• Sciatic nerve injury was minimal: 1/5 cadavers had a mild indentation; others had no gross injury.
• Median total surgical time: ~46 minutes in cadavers; incisions ~5 cm.
• Clinical Chihuahua case: weight-bearing within 24 hrs, radiographic union at 3 months; one screw fractured but no adverse effect.
• Authors conclude: MIAF with 3D printing is feasible and accurate, but requires further evaluation before routine use.

🔍 Key Findings

• Two short screws (SLS or SPS) provided >2× peak load, yield load, and stiffness vs a single long screw (LLS) for SI joint stabilization.
• No mechanical advantage was seen between the two short screw types (lag vs positional).
• All short screws terminated lateral to the spinal canal, avoiding spinal impingement.
• Ventral sacral foraminal impingement occurred in 3 short-screw cases (1 SPS, 2 SLS), all involving the caudal screw.
• LLS group showed more abaxial displacement at osteotomy sites, suggesting inferior stabilization for concurrent pelvic fractures.
• Short screw constructs had longer total screw length (48 mm) than LLS (40 mm), contributing to increased stiffness.
• Positioning of caudal screw in a cranial/craniodorsal trajectory may help avoid nerve foraminal injury.
• No significant difference in displacement at peak load among groups; stiffness and load capacity were the primary benefits.

🔍 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

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