Peer-reviewed veterinary case report
Shape memory alloy implant tested for dog femur fractures treatment
By Kim, Hyunsoo et al.·Published in Journal of orthopaedic surgery and research·2024·Department of Veterinary Clinical Sciences, South Korea·View original on PubMed →
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Original publication title: Pilot study on the feasibility of shape memory alloy implantation for Vancouver type B1 periprosthetic femoral fractures in a canine model: a step toward advancing treatment modalities.
- Species:
- dog
Plain-English summary
A dog with a Vancouver type B1 periprosthetic femoral fracture was treated using a new type of implant made from a shape memory alloy (SMA). This method was compared to the traditional cerclage wiring technique, which is often more complicated and time-consuming. While both treatments showed similar results in bone healing, the SMA method took significantly less time to perform during surgery. Although this new implant appears promising, more studies are needed to fully confirm its effectiveness and benefits for dogs with similar fractures.
People also search for: dog femur fracture treatment · shape memory alloy for dogs · periprosthetic fracture surgery in dogs
Abstract
BACKGROUND: Cerclage wiring is commonly used for treating fractures; however, it has several limitations, including mechanical weakness, decreased blood circulation, and technical complexity. In this study, we developed an implant using a shape memory alloy (SMA) and tested its efficacy in treating Vancouver type B1 (VB1) periprosthetic femoral fractures (PFFs) in a canine model. METHODS: The mid-diaphyseal fracture models underwent reduction via the SMA plate (SMA group) or the cerclage cable plate (cable group) method in randomly selected pelvic limbs. An intraoperative evaluation was conducted to assess the surgical time and difficulty related to implant fitting. Clinical assessments, radiography, microcomputed tomography (micro-CT), histological analysis, positron emission tomography (PET)/CT, and galvanic corrosion analysis were conducted for 52 weeks to evaluate bone healing and blood perfusion. RESULTS: The results for bone healing and blood perfusion were not significantly different between the groups (p > 0.05). In addition, no evidence of galvanic corrosion was present in any of the implants. However, the median surgical time was 75 min (range, 53-82 min) for the SMA group and 126 min (range, 120-171 min) for the cable group, which was a statistically significant difference (p = 0.0286). CONCLUSIONS: This study assessed the ability of a newly developed shape memory alloy (SMA) to treat VB1 periprosthetic femoral fractures (PFFs) in canines for over a 52-week period and revealed outcomes comparable to those of traditional methods in terms of bone healing and mechanical stability. Despite the lower surgical complexity and potential time-saving benefits of this treatment, further research is needed to confirm its efficacy.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/39192290/