Computed tomographic features and surgical treatment of equine mandibular aneurysmal bone cysts with β-tricalcium phosphate in a multicenter case series.
Abstract: To describe clinical and imaging features and surgical treatment of equine mandibular aneurysmal bone cysts (ABCs) with β-tricalcium phosphate (TCP). Methods: 3 horses (cases 1, 2, and 3) and 1 pony (case 4) with histologically confirmed ABC. Methods: All cases had mandibular swelling with intact adjacent skin. Cases 1 to 3 had a body condition score of 3/5 and case 4 had 2/5 and showed quidding during mastication and, at oral examination, large interdental spaces and loose elements adjacent to the swelling. Radiography or CT was performed in all cases. In cases 1, 3, and 4, an expansile septate cystic space-occupying lesion with mass effect on the adjacent cortices and teeth was seen without compact bone destruction. Case 2 showed a heterogeneous osteolytic mass with multifocal cortical lysis and interruption. Case 4 had severe dental abnormalities of deciduous and precursors of permanent teeth. ABCs were surgically treated and filled with only TCP (case 3) or in combination with autologous bone marrow (cases 1, 2, and 4). Results: Cases 1 through 3 showed an uneventful reduction in ABC size with increased opacity/attenuation. In case 4, a surgical site infection occurred. After removal of TCP remnants, the ABC healed satisfactorily, but remaining dental abnormalities necessitated dietary adjustments to maintain an acceptable body condition score. Conclusions: Treatment of ABCs with TCP had a favorable outcome and good long-term prognosis. In young specimens, the expansile effect on the development and eruption of neighboring teeth can influence and determine final functionality of the diseased dental quadrant.
Publication Date: 2023-08-09 PubMed ID: 37562778DOI: 10.2460/javma.23.03.0137Google Scholar: Lookup
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Summary
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This research article is about the study of how equine mandibular aneurysmal bone cysts (ABCs) in horses, characterized by clinical and imaging features, were successfully treated using a β-tricalcium phosphate (TCP) intervention.
Objective of the Research
- The primary goal of this research is to outline the clinical and radiographic characteristics, as well as the surgical application of β-tricalcium phosphate (TCP) in the treatment of mandibular aneurysmal bone cysts (ABCs) in equines (horses).
Study Methodology
- The study was based on four cases – three horses and a pony, all of which were diagnosed with ABCs via histology.
- All subjects had mandibular swelling but with different physical conditions and degrees of dental abnormality. They underwent radiographic or computed tomography (CT) scans.
- The CT scans revealed different bone conditions. Some had an expanding cystic lesion exerting pressure on the surrounding bone and teeth without destroying compact bone, while others showed a heterogeneous osteolytic mass with multifocal cortical lysis and interruption, and severe dental abnormalities.
- Surgery was performed on all four cases, where ABCs were excised and filled with TCP either solely or mixed with autologous bone marrow.
Results of the Study
- Except for the fourth case which developed a surgical site infection, the other three cases showed a satisfactory reduction in the size of ABCs, with increased opacity/attenuation.
- After the removal of TCP remnants in the fourth case, and making necessary dietary modifications due to remaining dental abnormalities, the ABC was successfully healed.
Conclusions
- The study concluded that the usage of β-tricalcium phosphate (TCP) to treat equine mandibular aneurysmal bone cysts (ABCs) resulted in positive outcomes and a good long-term prognosis.
- It was also noted that in young specimens, the expansile effect of ABCs on neighboring teeth development and eruption could alter and decide the final functionality of the diseased dental quadrant.
Cite This Article
APA
Spoormakers TJ, Heim C, Vermunt L, Fürst A, Rovel T.
(2023).
Computed tomographic features and surgical treatment of equine mandibular aneurysmal bone cysts with β-tricalcium phosphate in a multicenter case series.
J Am Vet Med Assoc, 1-9.
https://doi.org/10.2460/javma.23.03.0137 Publication
Researcher Affiliations
- 1Division of Equine Sciences, Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
- 2Equine Department, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
- 3Division of Anatomy and Physiology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
- 2Equine Department, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
- 4Division of Diagnostic Imaging, Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
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