Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip Osteoarthritis
Background. Osteoarthritis (OA) is the most common disease of the hip in adults, and its etiology is divided into two groups: primary and secondary. Although acetabular dysplasia is the most frequent reason for total hip arthroplasty (THA) in Japan, primary OA has increased recently. Although there...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Advances in Orthopedics |
| Online Access: | http://dx.doi.org/10.1155/2023/3158206 |
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| author | Kenta Inagaki Shigeo Hagiwara Yuya Kawarai Hiroakira Terakawa Shuichi Miyamoto Chiho Suzuki Hiroyuki Yamagata Junichi Nakamura Seiji Ohtori Satoshi Iida |
| author_facet | Kenta Inagaki Shigeo Hagiwara Yuya Kawarai Hiroakira Terakawa Shuichi Miyamoto Chiho Suzuki Hiroyuki Yamagata Junichi Nakamura Seiji Ohtori Satoshi Iida |
| author_sort | Kenta Inagaki |
| collection | DOAJ |
| description | Background. Osteoarthritis (OA) is the most common disease of the hip in adults, and its etiology is divided into two groups: primary and secondary. Although acetabular dysplasia is the most frequent reason for total hip arthroplasty (THA) in Japan, primary OA has increased recently. Although there are two types of femoral head migration in primary OA: superior and medial, there are some patients with prominent femoral head lateralization. This study aimed at evaluating the relationship between femoral head lateralization and bone morphology of the acetabulum and proximal femur using radiographic factors in primary OA of the hip. Methods. A retrospective study was conducted between 2008 and 2017 to assess 1308 hips with OA who underwent primary THAs at our institute. The diagnostic criteria for primary OA were Crowe type 1, Sharp’s angle <45°, and center-edge (CE) angle >25°. We classified patients with primary OA into two groups based on femoral head lateralization: group L with lateralization or group N without. Radiographic factors included Sharp’s angle, CE angle, acetabular inclination, acetabular depth ratio (ADR), acetabular head index (AHI), and femoral neck-shaft angle (FNA), all examined on an anteroposterior pelvic radiograph. Femoral neck anteversion was calculated using computerized axial tomography. Results. Primary OA was diagnosed in 210/1308 hips (16.1%) (group L: 112 hips (8.6%); group N: 98 (7.5%)). Patient demographics were not significantly different. Radiographic factors with observed significant differences between group L and group N were the average CE angle (33.0° vs. 35.1°, respectively, p = 0.009), ADR (251.6 vs. 273.4, p < 0.001), AHI (77.2 vs. 80.4, p < 0.001), and FNA (136.9° vs. 134.8°, p = 0.012). Conclusions. This investigation suggests that primary OA with femoral head lateralization demonstrated specific identifiable radiographic characteristics in the acetabulum and proximal femur that might contribute to hip joint instability such as the dysplastic hip. |
| format | Article |
| id | doaj-art-8ff9d2ddd9594be1b423e1c7ba36d0b1 |
| institution | DOAJ |
| issn | 2090-3472 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
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| series | Advances in Orthopedics |
| spelling | doaj-art-8ff9d2ddd9594be1b423e1c7ba36d0b12025-08-20T03:19:46ZengWileyAdvances in Orthopedics2090-34722023-01-01202310.1155/2023/3158206Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip OsteoarthritisKenta Inagaki0Shigeo Hagiwara1Yuya Kawarai2Hiroakira Terakawa3Shuichi Miyamoto4Chiho Suzuki5Hiroyuki Yamagata6Junichi Nakamura7Seiji Ohtori8Satoshi Iida9Department of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryBackground. Osteoarthritis (OA) is the most common disease of the hip in adults, and its etiology is divided into two groups: primary and secondary. Although acetabular dysplasia is the most frequent reason for total hip arthroplasty (THA) in Japan, primary OA has increased recently. Although there are two types of femoral head migration in primary OA: superior and medial, there are some patients with prominent femoral head lateralization. This study aimed at evaluating the relationship between femoral head lateralization and bone morphology of the acetabulum and proximal femur using radiographic factors in primary OA of the hip. Methods. A retrospective study was conducted between 2008 and 2017 to assess 1308 hips with OA who underwent primary THAs at our institute. The diagnostic criteria for primary OA were Crowe type 1, Sharp’s angle <45°, and center-edge (CE) angle >25°. We classified patients with primary OA into two groups based on femoral head lateralization: group L with lateralization or group N without. Radiographic factors included Sharp’s angle, CE angle, acetabular inclination, acetabular depth ratio (ADR), acetabular head index (AHI), and femoral neck-shaft angle (FNA), all examined on an anteroposterior pelvic radiograph. Femoral neck anteversion was calculated using computerized axial tomography. Results. Primary OA was diagnosed in 210/1308 hips (16.1%) (group L: 112 hips (8.6%); group N: 98 (7.5%)). Patient demographics were not significantly different. Radiographic factors with observed significant differences between group L and group N were the average CE angle (33.0° vs. 35.1°, respectively, p = 0.009), ADR (251.6 vs. 273.4, p < 0.001), AHI (77.2 vs. 80.4, p < 0.001), and FNA (136.9° vs. 134.8°, p = 0.012). Conclusions. This investigation suggests that primary OA with femoral head lateralization demonstrated specific identifiable radiographic characteristics in the acetabulum and proximal femur that might contribute to hip joint instability such as the dysplastic hip.http://dx.doi.org/10.1155/2023/3158206 |
| spellingShingle | Kenta Inagaki Shigeo Hagiwara Yuya Kawarai Hiroakira Terakawa Shuichi Miyamoto Chiho Suzuki Hiroyuki Yamagata Junichi Nakamura Seiji Ohtori Satoshi Iida Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip Osteoarthritis Advances in Orthopedics |
| title | Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip Osteoarthritis |
| title_full | Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip Osteoarthritis |
| title_fullStr | Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip Osteoarthritis |
| title_full_unstemmed | Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip Osteoarthritis |
| title_short | Correlation between Femoral Head Lateralization and Bone Morphology in Primary Hip Osteoarthritis |
| title_sort | correlation between femoral head lateralization and bone morphology in primary hip osteoarthritis |
| url | http://dx.doi.org/10.1155/2023/3158206 |
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