
Your Custom Quiz
In Whitney 2022 et al., on CBLO fixation strength, which construct showed the highest **ultimate load capacity** during ex vivo testing?
🔍 Key Findings
- CBLO fixation with both a headless compression screw (HCS) and tension band (TB) showed the highest yield and ultimate loads compared to other configurations
- HCSTB constructs had significantly higher yield load (1212 N) and ultimate load (1388 N) than Plate alone (788 N, 774 N), HCS alone (907 N, 927 N), or TB alone (1016 N, 1076 N)
- No difference in construct stiffness was detected among the four fixation methods tested
- All constructs ultimately failed by bone fracture—location of failure differed by construct type (e.g., through HCS hole or cranial screw hole)
- TB and HCSTB groups showed failure via progressive TB stretching and cranial osteotomy widening, while Plate and HCS failed more abruptly
- All constructs withstood forces exceeding expected quadriceps load in vivo (170–325 N), suggesting all methods can resist physiological loading, but HCSTB provides greater safety margin
- HCS alone was not significantly stronger than Plate or TB alone, questioning its standalone superiority
- Study supports using TB and HCS together for optimal construct strength, but clinical studies are needed to validate implant fatigue, healing, and failure rates
Veterinary Surgery
1
2022
Ex vivo biomechanical comparison of four Center of Rotation Angulation Based Leveling Osteotomy fixation methods
2022-1-VS-whitney-1
In Evers 2023 et al., on needle arthroscopy for meniscal tears, what was the reported sensitivity for diagnosing medial meniscal tears?
🔍 Key Findings
- Needle arthroscopy (NA) had 95% sensitivity and 100% specificity for diagnosing medial meniscal tears in dogs with CCLR.
- NA missed 1 medial and 1 lateral meniscal tear, both nondisplaced and stable.
- Visibility of all meniscal horns was significantly lower with NA compared to standard arthroscopy (SA) (P < .005 for all horns).
- Probing the caudal horn of the lateral meniscus was significantly more difficult with NA (P = .0017), though medial horn probing was similar.
- Mean NA procedure time was 8 ± 3 minutes, significantly shorter than SA (15 ± 9 min, P = .0041).
- No increase in lameness observed after NA, indicating minimal procedural morbidity.
- NA was performed under sedation in most dogs, though 10/26 required additional chemical restraint or short anesthesia.
- NA was most accurate for displaced vertical longitudinal tears, with all 14 correctly identified; one stable tear and a lateral tear were missed.
Veterinary Surgery
6
2023
Accuracy of needle arthroscopy for the diagnosis of medial meniscal tears in dogs with cranial cruciate ligament rupture
2023-6-VS-evers-1
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 Banks 2024 et al., what ostectomy position was associated with the most accurate postoperative TPA?
🔍 Key Findings Summary
- Study Design: Retrospective study of 100 radiographs using in silico and clinical data
- Mean preoperative TPA: 28.6°, higher in small dogs than large (p = .02)
- Mean planned TPA (in silico): 7.6°, not achieving 5° target (p < .01)
- Median postoperative TPA: 5.5° overall; higher in small dogs (7°) vs large (4.5°) (p = .06)
- Postoperative ostectomy position: More distal than recommended; average = 8.6 mm
- Increased distalization → greater under-correction of TPA (p = .01)
- Most accurate correction occurred when ostectomy was ≤7.5 mm from patellar tendon
- Wedge angle categories (TPA-Pre minus 5–2°) were used based on pre-op TPA
Veterinary Surgery
1
2024
A mismatch of planning and achieved tibial plateau angle in cranial closing wedge surgery: An in silico and clinical evaluation of 100 cases
2024-1-VS-banks-5
In Miller 2024 et al., on leak testing in cooled feline intestine, what explanation was given for higher leak pressures compared to canine data?
🔍 Key Findings
- No difference in initial leak pressure (ILP) or maximum intraluminal pressure (MIP) between cooled (17–29 h) and fresh enterotomy constructs.
- Wall thickness of duodenum and jejunum did not differ between fresh and cooled samples.
- Leak locations (suture holes vs clamp sites) were similar between groups; not statistically different.
- Volume of infusion did not influence ILP or MIP outcomes.
- Mean ILP values: Control = 600 mmHg (maxed), Fresh = 200 mmHg, Cooled = 131 mmHg; CE vs FE difference was not significant.
- Intraluminal diameter was largest in the ileum, followed by jejunum and duodenum.
- Cadaveric intestine cooled ≤29h may be reliably used in ex vivo feline leak pressure studies.
- First report of gross small intestinal lengths by region in cats—useful for resection planning.
Veterinary Surgery
5
2024
Cooled feline intestine and fresh intestine did not differ in enterotomy leak pressure testing or in gross wall thickness measurement
2024-5-VS-miller-4
In Israel 2022 et al., on cerclage wire in THR, what is the most appropriate placement location for the cerclage to prevent proximal femoral fractures?
🔍 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
Veterinary Surgery
2
2022
Outcome of canine cementless collared stem total hip replacement with proximal femoral periprosthetic cerclage application: 184 consecutive cases
2022-2-VS-israel-2
In Sisk 2024 et al., on intramedullary nails, what biomechanical property is most affected by increasing nail diameter?
🔍 Key Findings Summary
- IMN provides relative stability, resists bending/torsion due to central axis alignment
- Larger diameter nails = exponentially greater stiffness (∝ D⁴)
- Trade-off: Larger interlocking holes weaken fatigue strength of the nail
- Reaming increases contact/stability but has pros/cons:
- Improves outcomes in closed fractures
- May reduce endosteal blood flow in thin-walled bones (e.g., cats)
- Design advances:
- Angle-stable IMN reduce rotational slack
- Expandable nails simplify insertion but may compromise removal or compressive load resistance
- Precontoured nails match bone curvature but lack consistent clinical superiority
- Material debates continue (e.g., titanium vs. stainless steel vs. magnesium)
Veterinary and Comparative Orthopedics and Traumatology
6
2024
Biomechanical Principles of Intramedullary Nails in Veterinary and Human Medicine
2024-6-VCOT-sisk-1
In Levine 2025 et al., on thoracoscopic pericardiectomy, which approach produced the largest pericardial resection?
🔍 Key Findings
Study design: Randomized cadaveric comparison (n=20 dogs; ILR vs PDR)
Approaches:
- ILR = Intercostal in Left Lateral Recumbency (no OLV required)
- PDR = Paraxiphoid in Dorsal Recumbency (traditional)
Outcomes:
- Pericardiectomy time was shorter for ILR (p = .045)
- Pericardial fragment size was significantly larger in PDR group (p = .004; 23.21 cm² difference)
- Visibility and cardiac exposure were superior in PDR group
Feasibility:
- ILR approach was consistently successful in achieving partial pericardiectomy
- Bilateral ventilation was adequate; no need for OLV
Clinical relevance:
- ILR may improve efficiency when paired with TDL
- PDR remains preferable for cases requiring maximal pericardial resection
Veterinary Surgery
1
2025
Intercostal thoracoscopic pericardiectomy in left lateral recumbency: A cadaveric study of feasibility, efficiency, and extent of pericardial resection
2025-1-VS-levine-1
In Scott 2023 et al., on thoracoscopic-assisted lung lobectomy, what was the **most common classification** of postoperative complications?
🔍 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.
Veterinary Surgery
1
2023
Complications and outcomes of thoracoscopic-assisted lung lobectomy in dogs
2023-1-VS-scott-5
In Hertel 2025 et al., on portal venotomy for insulinoma, which postoperative complication was observed and medically managed?
🔍 Key Findings
- Portal venotomy enabled successful en bloc resection of a pancreatic insulinoma and associated thrombus in the portal vein, a novel approach in veterinary literature.
- Temporary portal vein occlusion (15 min) was well tolerated, causing only transient small intestinal congestion without lasting hemodynamic compromise.
- No intraoperative hemorrhage occurred following vascular isolation and venotomy repair with 5–0 polypropylene in a simple continuous pattern.
- Postoperative complications were minimal, with only moderate pancreatitis managed medically and no portal hypertension observed on follow-up imaging.
- Histopathology confirmed insulinoma, with no initial metastasis; CT at 6 months revealed hepatic and peritoneal metastases but no local recurrence at the venotomy site.
- Portal vein luminal stenosis occurred post-repair but was clinically insignificant.
- Advanced CT imaging and 3D printed modeling significantly enhanced surgical planning and anatomical assessment.
- Surgical excision achieved good short-term outcomes, and the dog was alive and euglycemic one year later despite metastatic disease.
Veterinary Surgery
5
2025
Successful venotomy for portal tumor thrombus removal due to pancreatic carcinoma in a dog
2025-5-VS-hertel-3
Quiz Results
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