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?

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Correct. Despite reduced load tolerance vs. controls, prosthetic femurs still exceeded ~6× body weight capacity.
Incorrect. The correct answer is 6.2×.
Despite reduced load tolerance vs. controls, prosthetic femurs still exceeded ~6× body weight capacity.

🔍 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.

Perez Neto

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

Article Title: Biomechanical Evaluation of a Femoral Implant for Hip Resurfacing Arthroplasty in Dogs: An Ex Vivo Study

Journal: Veterinary and Comparative Orthopaedics and Traumatology

In Zann 2023 et al., on proximal humeral OC surgery, what was the average owner-reported LOAD score indicating?

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Correct. The median LOAD score was 6, which falls into the mild category despite measurable orthopedic and imaging abnormalities.
Incorrect. The correct answer is Mild disability with good perceived function.
The median LOAD score was 6, which falls into the mild category despite measurable orthopedic and imaging abnormalities.

🔍 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.

Zann

Veterinary Surgery

6

2023

Long-term outcome of dogs treated by surgical debridement of proximal humeral osteochondrosis

2023-6-VS-zann-2

Article Title: Long-term outcome of dogs treated by surgical debridement of proximal humeral osteochondrosis

Journal: Veterinary Surgery

In Cantatore 2022 et al., on transanal submucosal resection, what proportion of dogs with recurrence were successfully treated with a repeat submucosal resection?

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Correct. 12 of 20 dogs (60%) with recurrence underwent repeat submucosal resection.
Incorrect. The correct answer is 60%.
12 of 20 dogs (60%) with recurrence underwent 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.

Cantatore

Veterinary Surgery

3

2022

Submucosal resection via a transanal approach for treatment of epithelial rectal tumors – a multicenter study

2022-3-VS-cantatore-4

Article Title: Submucosal resection via a transanal approach for treatment of epithelial rectal tumors – a multicenter study

Journal: Veterinary Surgery

In Buote 2023 et al., on laparoscopic gastrectomy in cats, what complication was **not** observed in either live patient after surgery?

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Correct. No intra- or postoperative complications were reported in the two live cats, including absence of leak, GI signs, or pain.
Incorrect. The correct answer is All of the above.
No intra- or postoperative complications were reported in the two live cats, including absence of leak, GI signs, or pain.

🔍 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.

Buote

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

Article Title: Laparoscopic vertical sleeve gastrectomy in felines: A cadaveric feasibility study and experimental case series in two cats

Journal: Veterinary Surgery

In Wylie 2025 et al., on femoral implant accuracy, which factor was significantly associated with more accurate implant placement?

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Correct. Higher weight was linked to better implant placement (p = .012), likely due to improved anatomical landmark visibility and surgical access.
Incorrect. The correct answer is Higher patient weight.
Higher weight was linked to better implant placement (p = .012), likely due to improved anatomical landmark visibility and surgical access.

🔍 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.

Wylie

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

Article Title: 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

Journal: Veterinary Surgery

In Duffy 2022 et al., on crotch suture techniques, which group had the **lowest resistance to leakage**, sometimes leaking below physiologic pressures?

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Correct. NCS constructs sometimes leaked at <25 mm Hg, which is below normal canine peristaltic pressures.
Incorrect. The correct answer is No crotch suture (NCS).
NCS constructs sometimes leaked at <25 mm Hg, which is below normal canine peristaltic 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.

Duffy

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

Article Title: Influence of crotch suture augmentation on leakage pressure and leakage location during functional end-to-end stapled anastomoses in dogs

Journal: Veterinary Surgery

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?

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Correct. The survival rate for cats with LFBOs was 98.2%, similar to DFBOs at 97%.
Incorrect. The correct answer is 98.2%.
The survival rate for cats with LFBOs was 98.2%, similar to DFBOs at 97%.

🔍 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.

Miller

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

Article Title: Linear and discrete foreign body small intestinal obstruction outcomes, complication risk factors, and single incision red rubber catheter technique success in cats

Journal: Veterinary Surgery

In Carwardine 2024 et al., on screw placement in HIF, which placement direction was associated with a significantly higher complication rate?

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Correct. 62.2% of lateral-to-medial placements developed complications, compared to only 19.4% for medial-to-lateral (p = .001).
Incorrect. The correct answer is Lateral to medial.
62.2% of lateral-to-medial placements developed complications, compared to only 19.4% for medial-to-lateral (p = .001).

🔍 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.

Carwardine

Veterinary Surgery

2

2024

Medial versus lateral transcondylar screw placement for canine humeral intracondylar fissures: A randomized clinical trial

2024-2-VS-carwardine-1

Article Title: Medial versus lateral transcondylar screw placement for canine humeral intracondylar fissures: A randomized clinical trial

Journal: Veterinary Surgery

In Whyte 2025 et al., on cannulated screw fixation, what factor was significantly associated with an increased risk of screw breakage?

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Correct. Heavier dogs (>20 kg) had a statistically significant association with screw breakage.
Incorrect. The correct answer is Body weight over 20 kg.
Heavier dogs (>20 kg) had a statistically significant association with 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

Whyte

Veterinary Surgery

2

2025

Use of cannulated screws in the treatment of unicondylar humeral condylar fractures in dogs

2025-2-VS-whyte-4

Article Title: Use of cannulated screws in the treatment of unicondylar humeral condylar fractures in dogs

Journal: Veterinary Surgery

In Nicolas 2024 et al., what spinal level was targeted using the lateral scapular osteotomy approach?

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Correct. The novel lateral approach was used for a foraminal disc extrusion at T1–T2:contentReference[oaicite:0]{index=0}
Incorrect. The correct answer is T1–T2.
The novel lateral approach was used for a foraminal disc extrusion at T1–T2:contentReference[oaicite:0]{index=0}

🔍 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.

Nicolas

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

Article Title: Scapular Osteotomy for Lateral Access to a T1-2 Foraminal Disc Extrusion, Treated by Mini-Hemilaminectomy in a Dog

Journal: Veterinary and Comparative Orthopedics and Traumatology

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