Peer-reviewed veterinary case report
Three-dimensional printed surgical guides for keratoma removal in horses using computed tomography or magnetic resonance imaging-based segmentation.
- Journal:
- Veterinary surgery : VS
- Year:
- 2022
- Authors:
- Biedrzycki, Adam H et al.
- Affiliation:
- Department of Large Animal Clinical Sciences · United States
- Species:
- horse
Plain-English summary
This study looked at a new way to remove keratomas, which are growths on the hooves of horses, using special 3D printed guides made from detailed imaging scans. Five horses were involved in the study, and they were put under general anesthesia for both the imaging and the surgery. The surgeons used these guides to create small openings in the hoof to remove the keratomas, and all of them were successfully taken out in about 20 to 90 minutes. While the guides made from CT scans fit well, those made from MRI scans needed some minor adjustments. After the surgery, all the horses healed well and were able to return to their normal activities within 2 to 4 months.
Abstract
OBJECTIVE: To report the technique, surgical approach, and postoperative features in horses treated via a 3-dimensional (3D) printed guide-assisted keratoma resection created using computed tomography (CT) or magnetic resonance imaging (MRI)-based segmentation. ANIMALS: Five client-owned horses. STUDY DESIGN: Short case series. METHODS: Horses were placed under general anesthesia for imaging (CT and MRI) and underwent a second anesthesia for surgery. Two horses had guides created from CT-based imaging, 3 horses had guides created from MRI. Various sized nonarbored hole saws were used to create accurate and precise portals for keratoma removal. Surgical sites were managed until keratinized granulation tissue had formed and the defect was sealed with an artificial hoof wall patch. RESULTS: All keratomas were successfully removed as a single piece either intact with the hoof wall or easily extracted after the hoof wall portal was created in a surgical time between 20 and 90 min. All CT created guides fitted without issue; MRI-created guides required minor adjustments with a rotary device for proper fit. All cases had minor debridement adjacent to P3 and circumferential lamellar tissue. All horses returned to previous level of performance 2 to 4 months postoperatively. CONCLUSION: Use of 3D printed guides led to accurate targeting of keratomas with small surgical portals and short surgical times. Due to challenges with MRI-based segmentation, CT is preferred.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/35225367/