Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumors
BackgroundInformation on dogs that undergo radiation therapy (RT) with non-stereotactic protocols in addition to surgical stabilization with implant placement for treatment of bone tumors is limited.ObjectiveOur primary objectives were to describe the clinical characteristics as well as short- and l...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Veterinary Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fvets.2023.1283728/full |
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| author | Maureen A. Griffin Andrea Mastorakis Brandan Wustefeld-Janssens Tiffany Wormhoudt Martin Lili Duda Bernard Seguin Giovanni Tremolada |
| author_facet | Maureen A. Griffin Andrea Mastorakis Brandan Wustefeld-Janssens Tiffany Wormhoudt Martin Lili Duda Bernard Seguin Giovanni Tremolada |
| author_sort | Maureen A. Griffin |
| collection | DOAJ |
| description | BackgroundInformation on dogs that undergo radiation therapy (RT) with non-stereotactic protocols in addition to surgical stabilization with implant placement for treatment of bone tumors is limited.ObjectiveOur primary objectives were to describe the clinical characteristics as well as short- and long-term outcomes, including complications, function, and disease progression, in dogs that underwent both surgical stabilization with implant placement and non-stereotactic RT for local treatment of a bone tumor.MethodsA bi-institutional retrospective case series was performed.AnimalsEight client-owned dogs that underwent both surgical stabilization with implant placement and non-stereotactic RT for local treatment of a bone tumor were included.ResultsTumor types included osteosarcoma or suspected osteosarcoma (5), plasma cell tumor (2), and grade 3 fibrosarcoma (1). Radiation protocols were hypofractionated (palliative intent) in 5 dogs and fractionated (definitive intent) in 3 dogs. Five dogs experienced complications following both RT and surgery, including grade 1 complications in two dogs, a grade 2 complication in one dog, both grade 1 and 2 complications in one dog, and both grade 2 and 3 complications in one dog. Clinical signs subjectively improved in all dogs that had outcomes relative to function documented post-surgery/RT (7). Of these 7 dogs, 4 maintained long-term improvement in function and clinical signs, whereas 3 experienced subsequent recurrence/progression of clinical signs at a median of 133 days (range 91-186) postoperatively in association with biomechanical complications (screw loosening), surgical site infection, and local disease progression in 1 dog each; subsequent treatment resulted in improved clinical signs for each of these 3 dogs, such that overall good long-term functional outcomes were experienced. No dogs required amputation or additional vertebral surgery as salvage for local disease control or palliation. The median progression free interval was 206 days (range 25-1078), and the median survival time was 253 days (range 122-1078) with 1 additional dog lost to follow-up at 575 days. Two dogs experienced local disease progression, and 6 dogs experienced systemic disease progression; both dogs that developed local disease progression received palliative intent RT protocols.Clinical relevanceIn this cohort, dogs with primary bone tumors that underwent surgical stabilization with implant placement and hypofractionated or fractionated non-stereotactic RT for local treatment had a low incidence of major complications, good limb function and ambulation post-treatment, and relatively prolonged survival times despite disease progression. |
| first_indexed | 2024-03-08T14:49:31Z |
| format | Article |
| id | doaj.art-f72bc9bfa89146c5b3bf9a43e283cef9 |
| institution | Directory Open Access Journal |
| issn | 2297-1769 |
| language | English |
| last_indexed | 2024-03-08T14:49:31Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Veterinary Science |
| spelling | doaj.art-f72bc9bfa89146c5b3bf9a43e283cef92024-01-11T04:57:33ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692024-01-011010.3389/fvets.2023.12837281283728Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumorsMaureen A. Griffin0Andrea Mastorakis1Brandan Wustefeld-Janssens2Tiffany Wormhoudt Martin3Lili Duda4Bernard Seguin5Giovanni Tremolada6Department of Clinical Sciences and Advanced Medicine, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, United StatesDepartment of Clinical Sciences and Advanced Medicine, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, United StatesDepartment of Clinical Sciences, Flint Animal Cancer Center, Colorado State University, Fort Collins, CO, United StatesDepartment of Clinical Sciences, Flint Animal Cancer Center, Colorado State University, Fort Collins, CO, United StatesDepartment of Clinical Sciences and Advanced Medicine, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, United StatesDepartment of Clinical Sciences, Flint Animal Cancer Center, Colorado State University, Fort Collins, CO, United StatesDepartment of Clinical Sciences, Flint Animal Cancer Center, Colorado State University, Fort Collins, CO, United StatesBackgroundInformation on dogs that undergo radiation therapy (RT) with non-stereotactic protocols in addition to surgical stabilization with implant placement for treatment of bone tumors is limited.ObjectiveOur primary objectives were to describe the clinical characteristics as well as short- and long-term outcomes, including complications, function, and disease progression, in dogs that underwent both surgical stabilization with implant placement and non-stereotactic RT for local treatment of a bone tumor.MethodsA bi-institutional retrospective case series was performed.AnimalsEight client-owned dogs that underwent both surgical stabilization with implant placement and non-stereotactic RT for local treatment of a bone tumor were included.ResultsTumor types included osteosarcoma or suspected osteosarcoma (5), plasma cell tumor (2), and grade 3 fibrosarcoma (1). Radiation protocols were hypofractionated (palliative intent) in 5 dogs and fractionated (definitive intent) in 3 dogs. Five dogs experienced complications following both RT and surgery, including grade 1 complications in two dogs, a grade 2 complication in one dog, both grade 1 and 2 complications in one dog, and both grade 2 and 3 complications in one dog. Clinical signs subjectively improved in all dogs that had outcomes relative to function documented post-surgery/RT (7). Of these 7 dogs, 4 maintained long-term improvement in function and clinical signs, whereas 3 experienced subsequent recurrence/progression of clinical signs at a median of 133 days (range 91-186) postoperatively in association with biomechanical complications (screw loosening), surgical site infection, and local disease progression in 1 dog each; subsequent treatment resulted in improved clinical signs for each of these 3 dogs, such that overall good long-term functional outcomes were experienced. No dogs required amputation or additional vertebral surgery as salvage for local disease control or palliation. The median progression free interval was 206 days (range 25-1078), and the median survival time was 253 days (range 122-1078) with 1 additional dog lost to follow-up at 575 days. Two dogs experienced local disease progression, and 6 dogs experienced systemic disease progression; both dogs that developed local disease progression received palliative intent RT protocols.Clinical relevanceIn this cohort, dogs with primary bone tumors that underwent surgical stabilization with implant placement and hypofractionated or fractionated non-stereotactic RT for local treatment had a low incidence of major complications, good limb function and ambulation post-treatment, and relatively prolonged survival times despite disease progression.https://www.frontiersin.org/articles/10.3389/fvets.2023.1283728/fullbone tumorcaninepathologic fractureradiation therapysurgery |
| spellingShingle | Maureen A. Griffin Andrea Mastorakis Brandan Wustefeld-Janssens Tiffany Wormhoudt Martin Lili Duda Bernard Seguin Giovanni Tremolada Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumors Frontiers in Veterinary Science bone tumor canine pathologic fracture radiation therapy surgery |
| title | Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumors |
| title_full | Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumors |
| title_fullStr | Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumors |
| title_full_unstemmed | Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumors |
| title_short | Outcomes in dogs undergoing surgical stabilization and non-stereotactic radiation therapy for axial and appendicular bone tumors |
| title_sort | outcomes in dogs undergoing surgical stabilization and non stereotactic radiation therapy for axial and appendicular bone tumors |
| topic | bone tumor canine pathologic fracture radiation therapy surgery |
| url | https://www.frontiersin.org/articles/10.3389/fvets.2023.1283728/full |
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