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Optimizing canine cemented total hip replacement: technical accuracy and learning outcomes in a cadaver model.
K S Kamalesh Kumar1, Rohit Kumar2, T Sai Kumar1
1Division of Surgery, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, 243122, Uttar Pradesh, India.
Veterinary Research Communications
|December 23, 2025
Summary
Novice surgeons can achieve acceptable canine total hip replacement (THR) outcomes using cadaver training. However, consistent optimal implant placement requires further refinement and intensive surgical protocols for improved accuracy.
Area of Science:
- Veterinary Surgery
- Orthopedic Surgery
- Canine Biomechanics
Background:
- Total hip replacement (THR) is effective for canine hip dysplasia.
- Surgical accuracy is crucial in THR, especially for novice surgeons.
- Learning curve errors can impact THR outcomes in dogs.
Purpose of the Study:
- Evaluate novice surgeon technical performance in cemented canine THR.
- Identify common intraoperative deviations during cemented THR.
- Assess the efficacy of cadaver-based training with mentoring for THR.
Main Methods:
- Twelve canine cadavers underwent unilateral cemented THR.
- Preoperative templating used both radiography and CT scans.
- Postoperative radiographs quantified implant orientation and technical accuracy.
Main Results:
- Over 80% agreement between templated and implanted components.
- Statistically significant association found between acetabular cup and femoral stem alignment.
- Increased canal fill correlated with mild varus/valgus deviations (p=0.01).
Conclusions:
- Cadaver training with mentoring can yield reproducible THR results in novice surgeons.
- Optimal implant placement was not consistently achieved, indicating a need for refinement.
- Further cadaveric studies and enhanced training protocols are recommended for canine THR accuracy.
