🔍 Key Findings

• Precontoured plates based on 3D-printed femurs produced accurate femoral alignment (median deviations <3 mm or <3° in all planes).
• Both fracture reduction system (FRS) and intramedullary pin (IMP) methods achieved near-anatomic alignment in cadaveric femoral fractures.
• FRS required fewer fluoroscopic images (median 7 vs. 26, P = .001), but longer surgical time (median 43 vs. 29 min, P = .011).
• Sagittal plane alignment: FRS led to mild increased recurvatum (median 2.9°), but still within near-anatomic limits (<5°).
• Axial alignment: Both groups achieved near-anatomic torsion (<10°), though one IMP case had acceptable (not near-anatomic) alignment.
• Custom drill guides and FRS improved fluoroscopy efficiency but were cumbersome and time-consuming to use. Authors do not recommend current prototype for clinical use.
• Clinical significance: 3D printed models allow accurate precontouring, reducing intra-op plate adjustment; custom guides may reduce radiation exposure for the surgical team.

🔍 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

• 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

Incidence of BFX lateral bolt stem breakage: 2.95% (13 dogs, 14 stems)

Implant factors:

• 13/14 were BFX lateral bolt stems (sizes #5–7)
• +9 necks used in 5/11 of 17 mm heads
• 10/14 stems undersized based on radiographs
• 10/13 dogs exceeded weight limits for implanted stem size

Malalignment:

• 10/14 had varus alignment (median 3.9°)
• 8/14 had insufficient proximodistal seating

Breakage site: Proximolateral shoulder in all cases

Revision outcomes:

• 11 revised (7 CFX, 3 larger BFX, 1 collared)
• 9/10 revised dogs regained full function
• Complications: 1 rebreakage, 1 periprosthetic fracture, 1 fixation failure

Histopathology:

• Electron microscopy showed fatigue striations and incomplete bead fusion

Conclusion: Avoid small BFX lateral bolt stems if undersized or if long necks required; use weight guidelines to prevent fatigue failure.

🔍 Key Findings

• No proximal femoral fractures occurred in any of the 184 hips with cerclage wire placement
• Cerclage wire was well tolerated, with no failures or complications related to the wire
• Application of a single cerclage wire took <10 minutes, was cost-effective, and required minimal instrumentation
• 3 postoperative complications (1 fissure, 2 fractures) occurred distal to the cerclage site, near the stem tip, requiring plate/screw fixation
• All dogs returned to normal activity, and all owners were satisfied with the outcome
• Cerclage placement location is critical—must be proximal to the lesser trochanter and close to the calcar to resist hoop strain
• Biomechanical evidence supports that cerclage wires improve resistance to hoop strain and subsidence of cementless stems
• Press-fit cementless stems may settle, but when supported by cerclage, this does not result in fractures even in undersized implants

🔍 Key Findings

• Only 2 of 10 PET implants were fully intact and functional at 6 months post-op.
• Owner-reported function (LOAD scores) improved by 51.7% (p = .008) over 6 months.
• Gait asymmetry improved by 86% (p = .002) postoperatively.
• Implant failure occurred in the midbody of the PET device, suggesting fatigue as a failure mechanism.
• One dog (10%) developed implant infection, necessitating implant removal.
• Implant fixation method (screws + washers + interference screw) was mechanically adequate and technically simple.
• Partially intact implants (4/10) still showed improved clinical outcomes, despite structural compromise.
• Midbody tearing and lack of long-term integrity prohibit continued use of this PET implant in CCL repair.

🔍 Key Findings

• A novel caudo-medial arthroscopic portal allowed visualization of previously undescribed cartilage lesions on the caudal medial humeral condyle.
• A consistent focal cartilage lesion (HA lesion) was observed in 100% of elbows with HIF (21/21), but in none of the 31 elbows without HIF.
• Lesions varied from indentations to full-thickness cartilage loss, typically elliptical and located just medial to the humeral condyle isthmus.
• A clunk-like sensation and dynamic engagement of the anconeal process into the lesion were observed in 16/21 elbows with HIF during elbow manipulation.
• In 5/21 elbows, engagement of the anconeal process led to observable widening of the HIF line, suggesting dynamic instability.
• Findings support a novel concept of humero-anconeal incongruity as a contributor to the pathogenesis of HIF.
• Spaniel breed was not a confounder—the lesion was only present in elbows with HIF, regardless of breed.
• The study suggests potential for using arthroscopy as a screening tool for early detection of humero-anconeal incongruity and HIF risk.

🔍 Key Findings Summary

• Study of 24 stifles in 22 dogs with concurrent CCLR and grade III–IV MPL treated via TPLO-TTT
• Major complications: 4/24 (3 surgical site infections, 1 MPL reluxation); minor complications: 5/24
• Long-term follow-up (median 27 months): 21/22 dogs sound, 23/24 stifles resolved
• Patellar ligament thickening observed post-op in 4 cases, resolved with rehab
• The only case of MPL reluxation involved untreated tibial torsion, suggesting case selection is critical

🔍 Key Findings

Internal fixation (IF) group (n=59):

• Complication rate: 20.3%
• Major complications: 15.3%
• Longer time to discharge if complications occurred (median: 12.5 weeks)

External skeletal fixation (ESF) group (n=36):

• Complication rate: 55.6% (p < .001 vs IF)
• Major complications: 52.8%
• Most common issue: pin tract morbidity

Multivariable analysis:

• Use of IF significantly reduced odds of complications (OR 0.23, p = .004)
• Use of post-op antibiotics associated with increased odds of complications (OR 3.53, p = .028)

Fixation choice influenced by age:

• Older puppies more likely to receive IF (OR 1.25 per week increase in age, p < .001)

Breed & fracture distribution:

• Common breeds: Labrador, Border Collie, Whippet
• Common fracture sites: middle and proximal third of tibia

🔍 Key Findings

• High union rate with low complications was achieved using the I-Loc angle-stable interlocking nail across 243 canine long-bone fractures.
• Mean time to clinical union was 8.3 weeks, faster than many historical plate-rod or non-angle-stable nail reports.
• Major complications occurred in only 5.3% and minor complications in 9.1% of cases.
• Most fractures were diaphyseal (75%) and comminuted (62%), demonstrating effectiveness in complex fracture patterns.
• Ancillary implants were uncommon (21%), mainly used in epi-/metaphyseal fractures or for anatomic reconstruction.
• Postoperative missed bolt rate was very low (0.94%), reflecting improved targeting accuracy.
• Open fractures carried a substantially higher risk of SSI and implant removal compared with closed fractures.
• Prebending of tibial nails was strongly recommended to follow natural recurvatum and avoid iatrogenic alignment errors.