
Quiz Question
In De Moya 2025 et al., on antebrachial deformity correction, what was the mean total radial lengthening achieved after distraction osteogenesis?
🔍 Key Findings
- CESF with distraction osteogenesis restored elbow congruity and normalized aLDRA in skeletally immature dogs with PCDRP.
- Radial head subluxation was eliminated in all dogs, and elbow incongruity reduced significantly (from 6.1 mm to 0.3 mm, p <.01).
- Mean radial lengthening of 22.6 mm (∼11% of normal length) was achieved, but only 80% of recorded distraction translated to length gain.
- Major complications occurred in 2/12 dogs: one with permanent carpal contracture, one with radial fracture at wire tract.
- Minor complications (e.g., carpal pain, restricted extension, synostosis, pin tract issues) were noted in 10/12 dogs but generally resolved.
- Owner surveys (8/12 dogs) reported good to excellent long-term function, even up to 6 years post-op.
- Radial valgus deformities were moderate (mean 15°) and less severe than deformities from ulnar physeal closure.
- Surgical strategy included staged distraction, with radial or combined radius/ulna distraction guided by fluoroscopy and adjusted per case.
Veterinary Surgery
6
2025
Treatment of antebrachial deformities secondary to premature closure of the distal radial physis using circular external skeletal fixation and distraction osteogenesis in skeletally immature dogs
2025-6-VS-demoya-4
In Berger 2023 et al., on elbow COR estimation, how did the COR in FMCP elbows compare to normal elbows?
🔍 Key Findings
- COR of elbows with FMCP was significantly more caudal compared to normal elbows, based on CT-derived geometry.
- In normal elbows, 74% of medial and 93% of lateral axes exited cranial and distal to the epicondyles.
- In FMCP elbows, 81% of medial and 70% of lateral axes exited caudal and distal to the epicondyles.
- Different landmark combinations produced slightly different COR approximations, especially between humeral vs. radius/ulna-based axes.
- The medial-lateral axis using trochlea and capitulum centers provided the most consistent COR approximation.
- COR estimations based on diseased elbows may not match normal joint geometry, impacting implant alignment accuracy.
- External epicondylar landmarks may be useful intraoperatively to estimate COR location, but variability limits precision.
- Drill diameter size may buffer small COR differences, but impact in advanced disease or bilateral cases remains unclear.
Veterinary Surgery
1
2023
The use of subchondral bone topography to approximate the center of rotation of the elbow joint in dogs
2023-1-VS-berger-2
In Anderson 2023 et al., on French Bulldogs with humeral condylar fractures, which fracture configuration was most common?
🔍 Key Findings
- Lateral humeral condylar fractures (LHCF) were most common, comprising 63.6% of cases.
- Transcondylar screw (TCS) + K-wire(s) fixation had a 7.62x higher risk of major complications compared to other methods (p = .009).
- All cases of TCS migration occurred in the TCS + K-wire group; none occurred with plate fixation.
- Overall complication rate was 40.9%, with 29.5% being major and requiring intervention.
- Contralateral humeral intracondylar fissures (HIF) were found in 58.1% of French Bulldogs with CT data.
- No significant association between age and presence of HIF, but fissure length increased with age (R = 0.47, p = .048).
- Younger, lighter dogs had higher complication and screw migration rates, possibly due to softer bone and smaller condyles.
- TCS + plate fixation had the lowest complication rate, suggesting biomechanical superiority.
Veterinary Surgery
1
2023
Humeral condylar fractures and fissures in the French bulldog
2023-1-VS-anderson-1
In Sherman 2023 et al., on minimally invasive ESF, what was the effect of intraoperative imaging on alignment?
🔍 Key Findings
- 55 cases (49 dogs, 6 cats) with nonarticular tibial fractures were treated using linear ESF with a minimally invasive approach
- All fractures achieved radiographic union; no unacceptable outcomes were reported
- 40% complication rate, mostly minor (82%), primarily pin-tract morbidity; major complications (7%) included osteomyelitis and refracture
- Open fractures had significantly more major complications than closed ones (P = .019)
- Use of intraoperative imaging (72% cases) reduced surgery time but did not improve alignment (P > .05)
- Median surgery time: 74 min with imaging vs. 100 min without (P = .046)
- TPA was lower than normal in both dogs and cats, but did not correlate with poor outcomes
- 62% had full clinical recovery, and 38% had acceptable outcomes at fixator removal
Veterinary Surgery
2
2023
Linear external skeletal fixation applied in minimally invasive fashion for stabilization of nonarticular tibial fractures in dogs and cats
2023-2-VS-sherman-2
In Dalton 2023 et al., on acetabular fracture repair, what was the median postoperative fracture gap reported in canine cadavers?
🔍 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.
Veterinary Surgery
6
2023
Minimally invasive repair of acetabular fractures in dogs: Ex vivo feasibility study and case report
2023-6-VS-dalton-1
In Whyte 2025 et al., on cannulated screw fixation, what was the reported clinical union rate?
🔍 Key Findings
Study focus: Outcomes of cannulated screw fixation in unicondylar humeral condylar fractures (UHCF) in dogs.
Clinical union rate: 89%
Overall complication rate: 36%
- Major complication: Most common was screw breakage
Significant risk factor for screw breakage:
- Body weight >20 kg (statistically significant)
Breed distribution:
- Spaniels, especially English Springer Spaniels, were most common
No mention of plate augmentation as standard in this cohort
Veterinary Surgery
2
2025
Use of cannulated screws in the treatment of unicondylar humeral condylar fractures in dogs
2025-2-VS-whyte-2
In Pfund 2025 et al., on femoral cortical thickness, what was the observed effect of a 0.001 increase in CTI on fracture risk?
🔍 Key Findings
- Lower CTI values were significantly associated with higher risk of both intraoperative and postoperative femoral fractures or fissures (p <.0001).
- The mean CTI for all dogs was 0.285, whereas dogs with fissures/fractures had a mean CTI of 0.246.
- For each 0.001 increase in CTI, odds of fissure/fracture decreased by 2–3% depending on perioperative timing.
- High interobserver reliability (ICC = 0.984) and consistency between pre- and postoperative CTI measurements (ICC = 0.96).
- CTI was the only significant risk factor identified; age, breed, bodyweight, BCS, CFI, or luxoid hips were not significant.
- Prophylactic lateral plating in dogs with low CTI (mean 0.230) resulted in no postoperative fractures.
- Postoperative fractures occurred in 8% of cases, and 93% of dogs returned to full function within one year.
- CTI may be a useful radiographic screening tool, especially when advanced imaging (e.g., DEXA) is unavailable.
Veterinary Surgery
6
2025
Femoral cortical thickness index in a population of dogs undergoing total hip replacement
2025-6-VS-pfund-3
In Anderson 2023 et al., on French Bulldogs with humeral condylar fractures, what percentage of French Bulldogs had a humeral intracondylar fissure (HIF) in the contralateral limb when CT was performed?
🔍 Key Findings
- Lateral humeral condylar fractures (LHCF) were most common, comprising 63.6% of cases.
- Transcondylar screw (TCS) + K-wire(s) fixation had a 7.62x higher risk of major complications compared to other methods (p = .009).
- All cases of TCS migration occurred in the TCS + K-wire group; none occurred with plate fixation.
- Overall complication rate was 40.9%, with 29.5% being major and requiring intervention.
- Contralateral humeral intracondylar fissures (HIF) were found in 58.1% of French Bulldogs with CT data.
- No significant association between age and presence of HIF, but fissure length increased with age (R = 0.47, p = .048).
- Younger, lighter dogs had higher complication and screw migration rates, possibly due to softer bone and smaller condyles.
- TCS + plate fixation had the lowest complication rate, suggesting biomechanical superiority.
Veterinary Surgery
1
2023
Humeral condylar fractures and fissures in the French bulldog
2023-1-VS-anderson-4
In Deprey 2022 et al., on gap fracture implants, which construct had significantly lower axial deformation in compression testing?
🔍 Key Findings
- NAS-ILN had significantly greater stiffness in both axial compression and 4-point bending compared to LCP constructs.
- Ultimate load to failure was significantly higher for NAS-ILN in compression (804 N vs 328 N) and bending (25.7 Nm vs 16.3 Nm).
- Torsional stiffness and angular deformation were similar, but NAS-ILN resisted higher torque to failure than LCP (22.5 Nm vs 19.1 Nm).
- No slack was observed with the NAS-ILN construct, unlike older nail designs.
- Failure modes differed: LCPs failed via plate bending; NAS-ILNs failed at the implant or bone near screw holes.
- Titanium alloy and curved design of NAS-ILN provides better anatomic fit and more uniform stress distribution.
- A third, perpendicular locking hole in NAS-ILN may enhance torsional stability but was not utilized in this study.
- The curved, angle-stable design of NAS-ILN is a novel advancement in veterinary orthopedics.
Veterinary Surgery
8
2022
Mechanical evaluation of a novel angle‐stable interlocking nail in a gap fracture model
2022-8-VS-deprey-1
In Deprey 2022 et al., on gap fracture implants, what was the failure mode of the LCP constructs under axial compression?
🔍 Key Findings
- NAS-ILN had significantly greater stiffness in both axial compression and 4-point bending compared to LCP constructs.
- Ultimate load to failure was significantly higher for NAS-ILN in compression (804 N vs 328 N) and bending (25.7 Nm vs 16.3 Nm).
- Torsional stiffness and angular deformation were similar, but NAS-ILN resisted higher torque to failure than LCP (22.5 Nm vs 19.1 Nm).
- No slack was observed with the NAS-ILN construct, unlike older nail designs.
- Failure modes differed: LCPs failed via plate bending; NAS-ILNs failed at the implant or bone near screw holes.
- Titanium alloy and curved design of NAS-ILN provides better anatomic fit and more uniform stress distribution.
- A third, perpendicular locking hole in NAS-ILN may enhance torsional stability but was not utilized in this study.
- The curved, angle-stable design of NAS-ILN is a novel advancement in veterinary orthopedics.
Veterinary Surgery
8
2022
Mechanical evaluation of a novel angle‐stable interlocking nail in a gap fracture model
2022-8-VS-deprey-2
Quiz Results
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Key Findings
