Simini Surgery Review: Small Animal Edition

VCOT July 2025 – Ortho Part 2: Tibial Torsion in MPL & The Future of Hip Resurfacing

12 min · 25 jun 2026
aflevering VCOT July 2025 – Ortho Part 2: Tibial Torsion in MPL & The Future of Hip Resurfacing artwork

Beschrijving

In this Simini Small Animal Surgery Podcast episode, we continue our orthopedic coverage from the July 2025 issue of Veterinary and Comparative Orthopaedics and Traumatology (VCOT) by examining how a deeper understanding of anatomy and biomechanics can fundamentally change surgical planning.  One study introduces a novel method for evaluating tibial torsional deformity in dogs with medial patellar luxation, while the second explores a promising bone-preserving alternative to traditional total hip replacement. In this episode: ✅ Isono et al. — Investigated tibial torsional malalignment in small-breed dogs with medial patellar luxation (MPL) using advanced CT analysis. The authors introduced the Proximal Tibia Metatarsal Angle (PTMTA), a new measurement designed to quantify rotational deformity throughout the entire hind limb. Normal dogs demonstrated a PTMTA of approximately 7 degrees, while Grade IV MPL patients averaged 32.8 degrees, with some exceeding 40 degrees. The findings suggest that severe MPL may be driven by substantial tibial rotational deformity, emphasizing the importance of evaluating the entire limb when planning corrective osteotomies.  ✅ Perez Neto et al. — Evaluated a novel short-stem hip resurfacing arthroplasty (HRA) implant as a potential alternative to conventional total hip replacement. Using cadaveric femurs from large-breed dogs, the authors demonstrated that although the implant reduced maximum load capacity by approximately 22%, implanted femurs still withstood forces exceeding six times body weight before failure. Importantly, fractures occurred in the same location as intact femurs, suggesting that the implant preserved natural load transmission patterns while maintaining substantial mechanical strength.  Together, these studies demonstrate that better orthopedic outcomes begin with understanding the underlying mechanics of the limb—and sometimes preserving anatomy may be just as important as replacing it. 🎓 Journal Articles Discussed * Isono et al. — Tibial Torsion Malalignment in Small Dogs with Medial Patellar Luxation * Perez Neto et al. — Biomechanical Evaluation of a Femoral Implant for Hip Resurfacing Arthroplasty in Dogs: An Ex Vivo Study 📚 From the July 2025 issue of VCOT 🎁 Want to learn more about Simini Protect Lavage or request a sample? Learn More:  www.simini.com [http://www.simini.com] Request a Sample:  https://www.simini.com/evaluation-kit [https://www.simini.com/evaluation-kit]

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aflevering Veterinary Surgery February 2026 – Soft Tissue Part 2: Axial Flaps & Laparoscopic Ergonomics artwork

Veterinary Surgery February 2026 – Soft Tissue Part 2: Axial Flaps & Laparoscopic Ergonomics

In this Simini Small Animal Surgery Podcast episode, we continue our soft tissue coverage from the February 2026 issue of Veterinary Surgery with two studies that highlight how outcomes depend not just on technique, but on tissue biology and surgeon-tool interaction. From large-scale reconstructive flap surgery in cats to laparoscopic instrument design, these papers reveal how both biology and ergonomics can shape surgical success. In this episode, we talk about: ✅ Cinti et al. — A retrospective study evaluating the lateral caudal axial pattern flap for reconstruction of large caudodorsal defects in cats. Despite a 50% complication rate, all complications were minor (seroma, edema, partial dehiscence), and 0% required revision surgery. Surgeons were able to safely use flaps averaging 61.3% of tail length, demonstrating that feline tail vasculature provides robust and reliable perfusion even under high tension, making this a viable option for massive defects.  ✅ Cormillot et al. — A prospective, randomized crossover study of 120 surgeons evaluating laparoscopic instrument handle size. The study found that hand size strongly predicts optimal handle preference, with surgeons wearing glove sizes ≤6.5 significantly preferring smaller handles, while larger-handed surgeons preferred standard sizes. Poor ergonomic fit led to two-handed instrument use, increased wrist strain, and reduced efficiency, highlighting a major but often overlooked contributor to surgeon fatigue and long-term injury risk.  Together, these studies emphasize a critical concept: successful surgery depends on both the biology of the patient and the biomechanics of the surgeon. 🎓 Journal Articles Discussed * Cinti et al. — Outcome and complications of lateral caudal axial pattern flap in 14 cats. * Cormillot et al. — Surgeon hand size influences laparoscopic finger loop handle preference. 📚 From the February 2026 issue of Veterinary Surgery 🎁 Want to learn more about Simini Protect Lavage or request a sample? Learn More:  www.simini.com [http://www.simini.com] Request a Sample: https://www.simini.com/evaluation-kit [https://www.simini.com/evaluation-kit]

Gisteren12 min
aflevering VCOT May 2026 – Ortho Part 2: Elbow Congruity, Hip Laxity & Hidden Tendon Disease artwork

VCOT May 2026 – Ortho Part 2: Elbow Congruity, Hip Laxity & Hidden Tendon Disease

In this Simini Small Animal Surgery Podcast episode, we continue our orthopedic coverage from the May 2026 issue of Veterinary and Comparative Orthopaedics and Traumatology (VCOT) by exploring three studies that reveal how hidden pathology often lies beneath seemingly normal clinical findings.  From subtle elbow incongruity in medial coronoid disease to standardizing stress radiography for hip dysplasia and identifying silent gastrocnemius tendon injuries in canine athletes, these papers emphasize the importance of looking beyond what is immediately visible. In this episode: ✅ Scharpf et al. — Used CT imaging to evaluate radioulnar congruity in dogs with medial coronoid disease (MCD). Although the medial compartment often appeared anatomically congruent, the authors identified significant lateral and central radioulnar incongruity, suggesting that many cases of MCD may actually represent a joint-wide biomechanical disorder rather than an isolated medial lesion. These findings help explain why some dogs continue to experience lameness despite technically successful arthroscopic treatment focused solely on the medial compartment.  ✅ Vandekerckhove et al. — Quantified the force required during passive stress radiography to accurately assess canine hip laxity. Under standardized sedation, 90% of hips reached maximal diagnostic laxity at approximately 80.5 Newtons (about 8.2 kg of force). The study provides an objective benchmark that may improve consistency between clinicians while reducing false-negative screening examinations caused by inadequate applied force.  ✅ Vannini et al. — Investigated gastrocnemius tendon origin (TGMO) injuries in actively competing Border Collies. Despite owners reporting no lameness, more than half of the dogs demonstrated pain during palpation, while ultrasonography revealed tendon abnormalities in approximately 85% of cases. The study showed that direct palpation of the lateral fabella was the most clinically useful screening tool, emphasizing that many athletic dogs may develop significant tendinopathy long before overt lameness appears.  Together, these studies reinforce an essential orthopedic principle: successful diagnosis depends on recognizing pathology before it becomes clinically obvious. 🎓 Journal Articles Discussed * Scharpf et al. — Assessment of the Conformation of the Radioulnar Joint Comparing Dogs with and without Medial Coronoid Disease * Vandekerckhove et al. — Quantifying the Stress in Stress Radiography to Determine Sufficient Laxity of the Coxofemoral Joint in Sedated Dogs * Vannini et al. — Prevalence of Tendinopathy of the Gastrocnemius Muscle Origin in a Cohort of Sound Border Collie 📚 From the May 2026 issue of VCOT 🎁 Want to learn more about Simini Protect Lavage or request a sample? Learn More:  www.simini.com [http://www.simini.com] Request a Sample:  https://www.simini.com/evaluation-kit [https://www.simini.com/evaluation-kit]

9 jul 202617 min
aflevering VCOT May 2026 – Ortho Part 1: Synovial CRP, Lumbosacral Fusion & Smarter Rehabilitation artwork

VCOT May 2026 – Ortho Part 1: Synovial CRP, Lumbosacral Fusion & Smarter Rehabilitation

In this Simini Small Animal Surgery Podcast episode, we begin our orthopedic coverage from the May 2026 issue of Veterinary and Comparative Orthopaedics and Traumatology (VCOT) by exploring three studies focused on making better clinical decisions through objective measurement.  From synovial biomarkers for joint disease, to surgical stabilization of degenerative lumbosacral stenosis, and evidence-based rehabilitation exercises, these papers demonstrate how data—not assumptions—can improve diagnosis, surgery, and postoperative recovery. In this episode: ✅ Beer et al. — Evaluated synovial fluid C-reactive protein (CRP) as a diagnostic biomarker for canine joint disease. Dogs with osteoarthritis demonstrated very low synovial CRP concentrations (median 1.2 mg/L), while dogs with immune-mediated polyarthritis (IMPA) and bacterial infective arthritis showed markedly elevated values of approximately 60–65 mg/L. Although CRP reliably distinguished non-inflammatory osteoarthritis from inflammatory joint disease, it could not differentiate septic arthritis from immune-mediated disease, reinforcing the continued importance of synovial cytology, culture, and clinical judgment when evaluating painful joints.  ✅ Van der Brink et al. — Compared standalone intervertebral cages with cages combined with pedicle screw and rod fixation (PSRF) for canine degenerative lumbosacral stenosis. Both techniques achieved similar long-term clinical outcomes, with approximately 64–65% of dogs returning to full function. However, adding PSRF reduced cage subsidence from 75% to 33%, improved radiographic fusion, and decreased temporary neurologic complications by providing greater construct stability during bone healing.  ✅ Ramos et al. — Used inertial motion sensors (IMUs) and surface electromyography (sEMG) to objectively measure muscle activation during rehabilitation exercises on progressively unstable platforms. While unstable "peanut" exercises increased thoracolumbar instability by 42–60%, they unexpectedly reduced activation of the epaxial muscles and biceps femoris, while dramatically increasing rectus abdominis recruitment. The findings suggest rehabilitation equipment should be selected based on which muscles require strengthening, rather than assuming greater instability universally improves core activation.  Together, these studies reinforce an important clinical principle: better orthopedic outcomes come from measuring the right variables—and understanding what those measurements truly mean. 🎓 Journal Articles Discussed * Beer et al. — Synovial Fluid C-Reactive Protein as a Biomarker in Osteoarthritis, Immune-Mediated Polyarthritis and Bacterial Infective Arthritis  * Van der Brink et al. — Comparison of Stand-Alone Cage versus Intervertebral Cage with Pedicle Screw and Rod Fixation in Dogs with Degenerative Lumbosacral Stenosis * Ramos et al. — The Effect of Progressively Unstable Equipment Used in Canine Fitness and Rehabilitation on Standing Postural Control and Muscle Activity 📚 From the May 2026 issue of VCOT 🎁 Want to learn more about Simini Protect Lavage or request a sample? Learn More:  www.simini.com [http://www.simini.com] Request a Sample:  https://www.simini.com/evaluation-kit [https://www.simini.com/evaluation-kit]

8 jul 202618 min
aflevering VCOT March 2026 – Ortho Part 3: Feline Maxillofacial Trauma & Lateral Total Ankle Replacement artwork

VCOT March 2026 – Ortho Part 3: Feline Maxillofacial Trauma & Lateral Total Ankle Replacement

In this Simini Small Animal Surgery Podcast episode, we conclude our orthopedic coverage from the March 2026 issue of Veterinary and Comparative Orthopaedics and Traumatology (VCOT) by exploring two studies that emphasize an essential surgical principle: successful orthopedic reconstruction depends on understanding anatomy—not simply repairing bones.  From complex craniomaxillofacial trauma in cats to an alternative surgical approach for canine total ankle replacement, these papers demonstrate how thoughtful preoperative planning and detailed anatomical knowledge can dramatically improve patient outcomes. In this episode: ✅ Weichert et al. — A retrospective CT study of 48 cats with craniomaxillofacial trauma following high-rise syndrome or motor vehicle accidents. Although mandibular fractures occurred in 40 cats, the authors found that 75% of patients (36/48) had injuries involving multiple functional systems. Notably, all cases of nasal airway obstruction were associated with oral cavity injuries, while 25 cats sustained fractures of the pterygoid hamular process, creating occult airway compromise despite minimal external soft tissue damage. The findings highlight the importance of CT-based evaluation and comprehensive surgical planning that addresses airway, mastication, vision, and temporomandibular joint function simultaneously.  ✅ Zingel et al. — A cadaveric study evaluating a lateral surgical approach for canine total ankle replacement (CTAR) when the standard medial approach is not feasible. Both approaches achieved excellent implant positioning, with 96% of bone-implant interfaces measuring less than 1 mm. Although the lateral approach increased angular laxity (15.5° vs. 9.5°) and required fibular osteotomy with meticulous protection of the lateral collateral ligament, overall joint stability remained acceptable. The authors conclude that the lateral approach represents a valuable alternative for revision cases or patients with severe medial scarring, while emphasizing the importance of precise center-of-rotation post placement and soft tissue preservation.  Together, these studies reinforce a central lesson in orthopedic surgery: the best reconstruction begins with understanding anatomy in three dimensions before making the first incision. 🎓 Journal Articles Discussed * Weichert et al. — Assessment of Fracture Distribution and Involvement of Functional Systems Following Craniomaxillofacial Trauma in 48 Cats * Zingel et al. — Implantation of a Canine Total Ankle Replacement Prosthesis Using a Lateral Surgical Approach is Accurate and Leads to a Stable Joint  📚 From the March 2026 issue of VCOT 🎁 Want to learn more about Simini Protect Lavage or request a sample? Learn More:  www.simini.com [http://www.simini.com] Request a Sample:  https://www.simini.com/evaluation-kit [https://www.simini.com/evaluation-kit]

7 jul 202610 min
aflevering VCOT March 2026 – Ortho Part 2: THR Cup Impactors & Patient-Specific Feline Spinal Guides artwork

VCOT March 2026 – Ortho Part 2: THR Cup Impactors & Patient-Specific Feline Spinal Guides

In this Simini Small Animal Surgery Podcast episode, we conclude our orthopedic coverage from the March 2026 issue of Veterinary and Comparative Orthopaedics and Traumatology (VCOT) by examining how better surgical instrumentation can improve precision, consistency, and patient safety.  One study evaluates an ergonomically redesigned cup impactor for canine total hip replacement, while the second demonstrates how patient-specific 3D-printed drill guides may transform feline spinal stabilization. In this episode: ✅ Mancusi et al. — A cadaveric study comparing a prototype ergonomic acetabular cup impactor with a conventional impactor during Zurich cementless total hip replacement. Among novice surgeons, the prototype significantly improved the angle of lateral opening (ALO), reducing the mean placement from 48.9° with the standard impactor to 43.2°, much closer to the ideal 45° target. However, the improved instrument did not improve cup retroversion, reinforcing that while better tools can reduce mechanical errors, accurate interpretation of anatomic landmarks remains essential for successful THA.  ✅ Rigo et al. — Evaluated patient-specific 3D-printed drill guides for thoracolumbar pedicle screw placement in cats. Across 126 pilot holes, the guides achieved an overall 91.2% safe placement rate, including 100% accuracy within the thoracic spine. Importantly, all breaches occurred laterally, with zero medial breaches or spinal canal violations, demonstrating that patient-specific guides can substantially improve safety while allowing a less invasive dorsal surgical approach. The study also reports the first successful clinical application of this technique in a feline patient, highlighting its potential for future spinal stabilization procedures.  Together, these studies demonstrate that the future of orthopedic surgery isn't simply better implants—it's smarter instrumentation that helps surgeons consistently perform at a higher level. 🎓 Journal Articles Discussed * Mancusi et al. — Comparison between Two Zurich Cementless Total Hip Replacement Cup Impactor Types in the Accuracy of Cup Positioning: An In Vitro Study * Rigo et al. — Feasibility and Accuracy of Pedicle Screws in the Feline Thoracolumbar Spine 📚 From the March 2026 issue of VCOT 🎁 Want to learn more about Simini Protect Lavage or request a sample? Learn More:  www.simini.com [http://www.simini.com] Request a Sample:  https://www.simini.com/evaluation-kit [https://www.simini.com/evaluation-kit]

6 jul 202612 min