Three-dimensional mapping study of pure transverse acetabular fractures
Abstract Background To describe and analyze the morphological characteristics, location and frequency of pure transverse acetabular fracture lines through fracture mapping and quantitative measurements. Methods Transverse fractures were retrospectively reviewed and analyzed. All computed tomography...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2022-05-01
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| Series: | Journal of Orthopaedic Surgery and Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13018-022-03148-8 |
| _version_ | 1798005334351020032 |
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| author | Junran Li Jingxiu Zhai Yingchao Yin Siyu Tian Zhongzheng Wang Ligeng Li Zhiyong Hou Yingze Zhang |
| author_facet | Junran Li Jingxiu Zhai Yingchao Yin Siyu Tian Zhongzheng Wang Ligeng Li Zhiyong Hou Yingze Zhang |
| author_sort | Junran Li |
| collection | DOAJ |
| description | Abstract Background To describe and analyze the morphological characteristics, location and frequency of pure transverse acetabular fracture lines through fracture mapping and quantitative measurements. Methods Transverse fractures were retrospectively reviewed and analyzed. All computed tomography (CT) data were used for reconstruction and manual reduction. The reductive fracture fragments were graphically overlaid onto a three-dimensional (3D) right hemipelvis template. Then, the fracture lines were accurately depicted onto the surface of the 3D template. The fracture lines were overlapped onto the model to create the 3D fracture map and heatmap. All cases were subdivided into infratectal (62-B1.1), juxtatectal (62-B1.2), and transtectal (62-B1.3) types based on the AO Foundation/Orthopedic Trauma Association (AO/OTA) classification. Some anatomic parameters of the transverse fractures were also analyzed in these 3 groups. Results Our study included forty-nine transverse fractures from 32 male and 17 female patients (mean age, 42 years; range 21–74 years) and included 19 type 62-B1.1, 17 type 62-B1.2, and 13 type 62-B1.3 fractures. The average anterior rim fracture angle was 70.0° (± 11.6°), and the posterior rim fracture angle was 92.4° (± 28.5°). The anterior rim fracture angles in 40 cases (40/49, 81.6%) fell within a wide range between 63° and 80°. On the heatmap, the hot zones were located on the highest position of the cotyloid fossa and the narrowed region, and the cold zone was on the inferior third of the articular surface. For type 62-B1.3 fractures, the hot zone was located on the posterior of the acetabular dome. There were no significant differences in anterior rim fracture angle and anterior height among the three patterns (P = 0.071, P = 0.072). Post hoc tests of the posterior rim fracture angle and the posterior height revealed significant differences among fracture subtypes (P < 0.01). The posterior intra-articular fracture line was significantly longer than the anterior intra-articular fracture line in type 62-B1.1 and type 62-B1.2 fractures (P < 0.01). Conclusion The fracture lines of transverse fractures through the anterior rim were concentrated on the narrowed zone, and the posterior fracture lines were diffusely distributed. The intra-articular fracture line distribution was focused on the superior and middle thirds of the joint surface. The recurrent fracture lines involving the weight-bearing dome mainly converged on the posterior region of the roof. |
| first_indexed | 2024-04-11T12:38:34Z |
| format | Article |
| id | doaj.art-2bd65df6f9064d93bd3eedd62adbeafa |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-04-11T12:38:34Z |
| publishDate | 2022-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-2bd65df6f9064d93bd3eedd62adbeafa2022-12-22T04:23:34ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2022-05-0117111010.1186/s13018-022-03148-8Three-dimensional mapping study of pure transverse acetabular fracturesJunran Li0Jingxiu Zhai1Yingchao Yin2Siyu Tian3Zhongzheng Wang4Ligeng Li5Zhiyong Hou6Yingze Zhang7Department of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityInstitute of Trauma Surgery, Second Hospital of TangshanDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityInstitute of Trauma Surgery, Second Hospital of TangshanDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityDepartment of Orthopaedic Surgery, Third Hospital of Hebei Medical UniversityAbstract Background To describe and analyze the morphological characteristics, location and frequency of pure transverse acetabular fracture lines through fracture mapping and quantitative measurements. Methods Transverse fractures were retrospectively reviewed and analyzed. All computed tomography (CT) data were used for reconstruction and manual reduction. The reductive fracture fragments were graphically overlaid onto a three-dimensional (3D) right hemipelvis template. Then, the fracture lines were accurately depicted onto the surface of the 3D template. The fracture lines were overlapped onto the model to create the 3D fracture map and heatmap. All cases were subdivided into infratectal (62-B1.1), juxtatectal (62-B1.2), and transtectal (62-B1.3) types based on the AO Foundation/Orthopedic Trauma Association (AO/OTA) classification. Some anatomic parameters of the transverse fractures were also analyzed in these 3 groups. Results Our study included forty-nine transverse fractures from 32 male and 17 female patients (mean age, 42 years; range 21–74 years) and included 19 type 62-B1.1, 17 type 62-B1.2, and 13 type 62-B1.3 fractures. The average anterior rim fracture angle was 70.0° (± 11.6°), and the posterior rim fracture angle was 92.4° (± 28.5°). The anterior rim fracture angles in 40 cases (40/49, 81.6%) fell within a wide range between 63° and 80°. On the heatmap, the hot zones were located on the highest position of the cotyloid fossa and the narrowed region, and the cold zone was on the inferior third of the articular surface. For type 62-B1.3 fractures, the hot zone was located on the posterior of the acetabular dome. There were no significant differences in anterior rim fracture angle and anterior height among the three patterns (P = 0.071, P = 0.072). Post hoc tests of the posterior rim fracture angle and the posterior height revealed significant differences among fracture subtypes (P < 0.01). The posterior intra-articular fracture line was significantly longer than the anterior intra-articular fracture line in type 62-B1.1 and type 62-B1.2 fractures (P < 0.01). Conclusion The fracture lines of transverse fractures through the anterior rim were concentrated on the narrowed zone, and the posterior fracture lines were diffusely distributed. The intra-articular fracture line distribution was focused on the superior and middle thirds of the joint surface. The recurrent fracture lines involving the weight-bearing dome mainly converged on the posterior region of the roof.https://doi.org/10.1186/s13018-022-03148-8Transverse fractureFracture mappingHeatmapComputed tomographyAO/OTA 62-B1 |
| spellingShingle | Junran Li Jingxiu Zhai Yingchao Yin Siyu Tian Zhongzheng Wang Ligeng Li Zhiyong Hou Yingze Zhang Three-dimensional mapping study of pure transverse acetabular fractures Journal of Orthopaedic Surgery and Research Transverse fracture Fracture mapping Heatmap Computed tomography AO/OTA 62-B1 |
| title | Three-dimensional mapping study of pure transverse acetabular fractures |
| title_full | Three-dimensional mapping study of pure transverse acetabular fractures |
| title_fullStr | Three-dimensional mapping study of pure transverse acetabular fractures |
| title_full_unstemmed | Three-dimensional mapping study of pure transverse acetabular fractures |
| title_short | Three-dimensional mapping study of pure transverse acetabular fractures |
| title_sort | three dimensional mapping study of pure transverse acetabular fractures |
| topic | Transverse fracture Fracture mapping Heatmap Computed tomography AO/OTA 62-B1 |
| url | https://doi.org/10.1186/s13018-022-03148-8 |
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