
Your Custom Quiz
In Perez Neto 2025 et al., on hip resurfacing arthroplasty, approximately how many times body weight did prosthetic femurs withstand before failure?
🔍 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.
Veterinary and Comparative Orthopaedics and Traumatology
4
2025
Biomechanical Evaluation of a Femoral Implant for Hip Resurfacing Arthroplasty in Dogs: An Ex Vivo Study
2025-4-VCOT-perezneto-4
In Zann 2023 et al., on proximal humeral OC surgery, what was the average owner-reported LOAD score indicating?
🔍 Key Findings
- All dogs developed progressive osteoarthritis (OA) after surgical debridement of proximal humeral OC.
- Ipsilateral muscle atrophy and reduced shoulder range of motion were common, particularly in unilaterally affected dogs.
- Arthroscopically, lesions showed incomplete cartilage infilling even years after surgery, averaging only ~37% infilling.
- Synovitis was present in all joints, with moderate-to-severe hypertrophy and vascularity scores.
- CT identified OC lesions as deeper and wider than radiography, and all affected joints had more advanced OA than contralateral limbs (P = .001 radiograph, P = .005 CT).
- Kinetic gait analysis showed no significant differences in peak vertical force or impulse, but a subtle 4.4% asymmetric load reduction on the operated limb.
- Median LOAD score was 6, indicating mild owner-perceived disability despite measurable clinical and imaging abnormalities.
- Cartilage infilling was incomplete in all cases, with no lesion exceeding 60% restoration, raising questions about the healing potential of debridement alone.
Veterinary Surgery
6
2023
Long-term outcome of dogs treated by surgical debridement of proximal humeral osteochondrosis
2023-6-VS-zann-2
In Cantatore 2022 et al., on transanal submucosal resection, what proportion of dogs with recurrence were successfully treated with a repeat submucosal resection?
🔍 Key Findings
- Submucosal resection via a transanal approach was associated with a low rate (1.1%) of major complications and prolonged survival across benign and malignant rectal tumors.
- Overall recurrence rate was 21.5%, with higher recurrence in malignant tumors: 28.6% (carcinomas) and 30.4% (carcinoma in situ) vs. 13.6% (adenomas).
- Complications (P = .032) and incomplete margins (P = .023) were independently associated with increased recurrence risk.
- Recurrence was the only factor associated with increased risk of tumor-related death (P = .046).
- Repeat submucosal resection was successful in 60% of dogs with recurrence, indicating feasibility of this as a salvage approach.
- 1-, 2-, and 5-year survival rates for carcinomas were 95%, 89%, and 73%, though overall survival was significantly longer for benign tumors (P = .001).
- Preoperative diagnostics (FNA, biopsy) were often inconsistent with final histopathology – only 64.3% biopsy agreement.
- Presurgical imaging was not consistently performed, limiting accurate staging in many dogs.
Veterinary Surgery
3
2022
Submucosal resection via a transanal approach for treatment of epithelial rectal tumors – a multicenter study
2022-3-VS-cantatore-4
In Buote 2023 et al., on laparoscopic gastrectomy in cats, what complication was **not** observed in either live patient after surgery?
🔍 Key Findings
- LVSG was feasible in 9/10 feline cadavers with successful stapled gastrectomy and minimal technical complications.
- Stenosis at the incisura angularis occurred in 2/10 cadavers, associated with staple placement too close to the lesser curvature.
- Leak testing was negative in 8 cadavers and both live cats, indicating effective staple sealing.
- Mean stomach resection was ~28%, though less than human standards (~75–80%) for metabolic effects.
- Surgery was performed safely in two live feline subjects, with no intraoperative or postoperative complications over a 6-month follow-up.
- Technique refinements included orogastric tube placement and custom 3D-printed cannulas to improve staple line accuracy and avoid stenosis.
- Tri-Staple purple cartridges provided graduated compression suited for feline gastric tissue thickness (~2.5 mm).
- No need for staple line oversew in live cats; staple-only closure proved safe in this short-term study.
Veterinary Surgery
6
2023
Laparoscopic vertical sleeve gastrectomy in felines: A cadaveric feasibility study and experimental case series in two cats
2023-6-buote2-3
In Wylie 2025 et al., on femoral implant accuracy, which factor was significantly associated with more accurate implant placement?
🔍 Key Findings
- Accurate femoral isometric placement was achieved in 63% of cases, significantly more with SwiveLock (78.6%) than FASTak (38.9%).
- Inaccurate placement was associated with increased internal tibial rotation at follow-up (p = .009), suggesting potential implant failure.
- Pivot shift grade improved in 90.9% of stifles postoperatively, regardless of implant positioning accuracy.
- SwiveLock implants had a faster learning curve and higher placement accuracy than FASTak.
- Higher patient weight was linked to more accurate implant placement (p = .012), likely due to easier anatomical landmark identification.
- No correlation found between implant type or positioning accuracy and final pivot shift grade at 6 weeks.
- Minor and major complications were low and not significantly different between implant types.
- A simplified 2-grade pivot shift system was proposed for clinical use (Grade 1: glide, Grade 2: clunk), aiding intraoperative decision-making.
Veterinary Surgery
7
2025
Evaluation of femoral isometric placement accuracy of internal brace implants and its impact on stifle stability in the management of pivot shift phenomenon following TPLO
2025-7-VS-wylie-4
In Duffy 2022 et al., on crotch suture techniques, which group had the **lowest resistance to leakage**, sometimes leaking below physiologic pressures?
🔍 Key Findings
- Augmenting FEESA with two simple interrupted crotch sutures (TCS) or simple continuous crotch suture (SCCS) significantly increased initial leakage pressure (ILP) compared to no suture or a single suture (NCS, SICS).
- SCCS had the highest ILP (47.6 mm Hg), followed by TCS (37.8 mm Hg), SICS (33.0 mm Hg), and NCS (27.1 mm Hg).
- All crotch suture types increased maximal leakage pressure (MLP) compared to no crotch suture.
- Leakage from the crotch occurred most commonly in NCS (67%) and SICS (50%), but only 8% with TCS and 0% with SCCS.
- SCCS was the only technique where leakage never occurred at the crotch site.
- SCCS had the highest MLP (100.6 mm Hg), supporting its use in clinical settings with high-risk patients.
- Intraluminal pressures during leakage in NCS constructs were sometimes below normal physiologic pressures, emphasizing risk of leakage without crotch suture.
- The transverse staple line never leaked in any group, indicating the crotch is the primary weak point.
Veterinary Surgery
4
2022
Influence of crotch suture augmentation on leakage pressure and leakage location during functional end-to-end stapled anastomoses in dogs
2022-4-VS-duffy-3
In Miller 2024 et al., on intestinal obstruction and catheter technique in cats, what was the reported survival to discharge for cats with linear foreign bodies?
🔍 Key Findings
- Cats with linear (LFBO) and discrete (DFBO) small intestinal obstructions had similar survival (98.2% vs. 97%, p = 1.0).
- Postoperative complications were not significantly different between LFBO and DFBO cases (p = .1386).
- Intestinal dehiscence was rare (only 2 cats), both in DFBOs, with no statistical difference between groups.
- Red rubber catheter technique (RRCT) successfully removed LFBOs in 83% (20/24) of attempts.
- All failed RRCTs occurred in cats with perforations or tissue nonviability.
- Cats with failed RRCTs had longer clinical signs pre-surgery (median 6.5 vs. 2.0 days).
- Surgical time was longer in LFBO cats (median 77 min vs. 58 min, p = .0018).
- Preoperative septic peritonitis was rare (4/169 cats), but occurred only in linear or mixed FBO cases.
Veterinary Surgery
7
2024
Linear and discrete foreign body small intestinal obstruction outcomes, complication risk factors, and single incision red rubber catheter technique success in cats
2024-7-VS-miller-5
In Carwardine 2024 et al., on screw placement in HIF, which placement direction was associated with a significantly higher complication rate?
🔍 Key Findings
- 73 elbows (52 dogs) underwent randomized medial or lateral transcondylar screw placement for HIF.
- Lateral-to-medial placement resulted in a significantly higher rate of complications (62.2%) vs medial-to-lateral (19.4%) (p = .001).
- Odds ratio for complications: 6.11 (95% CI: 2.13–17.52).
- Most common complications: seromas (n = 13), surgical site infections (n = 16).
- Implants with lower AMI/bodyweight were significantly associated with major complications (p = .037).
- Only 4 procedures (5%) required revision surgery (major type I complications), with no difference by screw direction.
- NNT = 2.3 for medial placement to prevent one complication.
Veterinary Surgery
2
2024
Medial versus lateral transcondylar screw placement for canine humeral intracondylar fissures: A randomized clinical trial
2024-2-VS-carwardine-1
In Whyte 2025 et al., on cannulated screw fixation, what factor was significantly associated with an increased risk of screw breakage?
🔍 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-4
In Nicolas 2024 et al., what spinal level was targeted using the lateral scapular osteotomy approach?
🔍 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.
Veterinary and Comparative Orthopedics and Traumatology
2
2024
Scapular Osteotomy for Lateral Access to a T1-2 Foraminal Disc Extrusion, Treated by Mini-Hemilaminectomy in a Dog
2024-2-VCOT-nicolas-1
Quiz Results
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Key Findings
