Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume Parameters
Purpose: Chemoradiation therapy is the primary treatment for anal cancer. Radiation therapy (RT) can weaken the pelvic bone structure, but the risk of pelvic insufficiency fractures (PIFs) and derived pain in anal cancer is not yet established. We determined the frequency of symptomatic PIFs after R...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Advances in Radiation Oncology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2452109422002160 |
| _version_ | 1828096866183544832 |
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| author | Camilla Jensenius Kronborg, MD, PhD Bodil Ginnerup Pedersen, MD, PhD Jeppe Klemmensen, MD Anna Cecilie Lefévre, MD Karen Lycke Wind, MD Karen-Lise Garm Spindler, MD, PhD |
| author_facet | Camilla Jensenius Kronborg, MD, PhD Bodil Ginnerup Pedersen, MD, PhD Jeppe Klemmensen, MD Anna Cecilie Lefévre, MD Karen Lycke Wind, MD Karen-Lise Garm Spindler, MD, PhD |
| author_sort | Camilla Jensenius Kronborg, MD, PhD |
| collection | DOAJ |
| description | Purpose: Chemoradiation therapy is the primary treatment for anal cancer. Radiation therapy (RT) can weaken the pelvic bone structure, but the risk of pelvic insufficiency fractures (PIFs) and derived pain in anal cancer is not yet established. We determined the frequency of symptomatic PIFs after RT for anal cancer and related this to radiation dose to specific pelvic bone substructures. Methods and Materials: In a prospective setting, patients treated with RT for anal cancer had magnetic resonance imaging 1 year after RT. PIFs were mapped to 17 different bone sites, and we constructed a guideline for detailed delineation of pelvic bone substructures. Patients were interviewed regarding pain and scored according to Common Terminology Criteria for Adverse Effects. Dose-volume relationships for specific pelvic bone substructures and PIFs were determined for V20 to V40 Gy mean and maximum doses. Results: Twenty-seven patients were included, and 51.9% had PIFs primarily located in the alae of the sacral bone. Patients with PIFs had significantly more pelvic pain (86% vs 23%, P = .001) and 43% had grade 2 bone pain. Dose-volume parameters for sacral bone and sacral alae were significantly higher in patients with PIFs (P < .05). V30 Gy (%) for sacral bone and alae implied an area under the curve of 0.764 and 0.758, respectively, in receiver operating characteristic analyses. Conclusions: We observed a high risk of PIFs in patients treated with RT for anal cancer 1 year after treatment. A significant proportion had pain in the sites where PIFs were most frequently found. Radiation dose to pelvic bone substructures revealed relation to risk of PIFs and can be used for plan optimization in future clinical trials. |
| first_indexed | 2024-04-11T07:37:08Z |
| format | Article |
| id | doaj.art-25984dafc3564a43a4595638e3456d0d |
| institution | Directory Open Access Journal |
| issn | 2452-1094 |
| language | English |
| last_indexed | 2024-04-11T07:37:08Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Advances in Radiation Oncology |
| spelling | doaj.art-25984dafc3564a43a4595638e3456d0d2022-12-22T04:36:41ZengElsevierAdvances in Radiation Oncology2452-10942023-01-0181101110Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume ParametersCamilla Jensenius Kronborg, MD, PhD0Bodil Ginnerup Pedersen, MD, PhD1Jeppe Klemmensen, MD2Anna Cecilie Lefévre, MD3Karen Lycke Wind, MD4Karen-Lise Garm Spindler, MD, PhD5Danish Centre for Particle Therapy, Aarhus, Denmark; Corresponding author: Camilla Jensenius Kronborg, MD, PhDDepartment of Radiology, Aarhus University Hospital, Aarhus, DenmarkDepartment of Oncology, Aarhus University Hospital, Aarhus, DenmarkDepartment of Oncology, Aarhus University Hospital, Aarhus, DenmarkDepartment of Oncology, Aarhus University Hospital, Aarhus, DenmarkDepartment of Oncology, Aarhus University Hospital, Aarhus, DenmarkPurpose: Chemoradiation therapy is the primary treatment for anal cancer. Radiation therapy (RT) can weaken the pelvic bone structure, but the risk of pelvic insufficiency fractures (PIFs) and derived pain in anal cancer is not yet established. We determined the frequency of symptomatic PIFs after RT for anal cancer and related this to radiation dose to specific pelvic bone substructures. Methods and Materials: In a prospective setting, patients treated with RT for anal cancer had magnetic resonance imaging 1 year after RT. PIFs were mapped to 17 different bone sites, and we constructed a guideline for detailed delineation of pelvic bone substructures. Patients were interviewed regarding pain and scored according to Common Terminology Criteria for Adverse Effects. Dose-volume relationships for specific pelvic bone substructures and PIFs were determined for V20 to V40 Gy mean and maximum doses. Results: Twenty-seven patients were included, and 51.9% had PIFs primarily located in the alae of the sacral bone. Patients with PIFs had significantly more pelvic pain (86% vs 23%, P = .001) and 43% had grade 2 bone pain. Dose-volume parameters for sacral bone and sacral alae were significantly higher in patients with PIFs (P < .05). V30 Gy (%) for sacral bone and alae implied an area under the curve of 0.764 and 0.758, respectively, in receiver operating characteristic analyses. Conclusions: We observed a high risk of PIFs in patients treated with RT for anal cancer 1 year after treatment. A significant proportion had pain in the sites where PIFs were most frequently found. Radiation dose to pelvic bone substructures revealed relation to risk of PIFs and can be used for plan optimization in future clinical trials.http://www.sciencedirect.com/science/article/pii/S2452109422002160 |
| spellingShingle | Camilla Jensenius Kronborg, MD, PhD Bodil Ginnerup Pedersen, MD, PhD Jeppe Klemmensen, MD Anna Cecilie Lefévre, MD Karen Lycke Wind, MD Karen-Lise Garm Spindler, MD, PhD Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume Parameters Advances in Radiation Oncology |
| title | Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume Parameters |
| title_full | Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume Parameters |
| title_fullStr | Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume Parameters |
| title_full_unstemmed | Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume Parameters |
| title_short | Pelvic Insufficiency Fractures and Bone Pain after Radiation Therapy for Anal Cancer: Relation to Pelvic Bone Dose-Volume Parameters |
| title_sort | pelvic insufficiency fractures and bone pain after radiation therapy for anal cancer relation to pelvic bone dose volume parameters |
| url | http://www.sciencedirect.com/science/article/pii/S2452109422002160 |
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