Osteoarthritis hip joints in Japan: involvement of acetabular dysplasia
| Autor: | Hiroyuki Shindo, Genji Fujii, Kunihiko Okano, Yoshio Hirota, Yoshio Takatori, Satoko Ohfuji, Hajime Sugiyama, Tadami Matsumoto, Ichiro Owan, Yukihide Iwamoto, Ken Iwata, Harumoto Yamada, Taro Mawatari, Kenichi Ando, Moritoshi Itoman, Yuji Yasunaga, Teruhisa Hirayama, Muroto Sofue, Toshiro Iga, Keita Miyanishi, Tatsuro Karita, Takanari Hamaki, Seiya Jingushi, Hiroshi Ito, Masanori Matsuura, Hirotsugu Ohashi, Naonobu Takahira, Tanzo Sugimori, Yoshiki Hamada, Satoshi Nakasone, Satoshi Mori |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Adult
Male musculoskeletal diseases medicine.medical_specialty Epidemiologic study Osteoarthritis Osteoarthritis Hip Age Distribution Japan Risk Factors Internal medicine Odds Ratio Prevalence medicine Hip osteoarthritis Hip Dislocation Humans Orthopedics and Sports Medicine Sex Distribution Aged Aged 80 and over business.industry Acetabulum Odds ratio Middle Aged medicine.disease Rheumatology Acetabular dysplasia Surgery Orthopedic surgery Physical therapy Female business |
| Zdroj: | Journal of Orthopaedic Science. 16:156-164 |
| ISSN: | 0949-2658 |
| DOI: | 10.1007/s00776-011-0025-7 |
| Popis: | We conducted a nationwide epidemiologic study regarding hip osteoarthritis (OA) in Japan, and a previous report found these patients to be unique in comparison to Caucasians. This report focused on the data regarding each hip joint, and the involvement of acetabular dysplasia with hip OA was analyzed.Seven hundred twenty OA hips were examined. Sixty-five joints with osteonecrosis of the femoral head and 215 non-OA contralateral joints of the unilateral patients were examined as controls. The revised system of stage classification for hip OA of the Japanese Orthopedic Association (JOA) was used according to the reproducibility in order to ensure reliable data from the multiple institutions. The acetabular dysplasia indexes were also chosen according to the reproducibility and measured in the radiograph of bilateral hip joints. The clinical score was assessed using the JOA scoring system. The relative risk of the grade of acetabular dysplasia indexes for hip OA was calculated as the odds ratio and the 95% confidence interval.The stage of the OA joints deteriorated with increasing age. The clinical scores also decreased. The grade of the acetabular dysplasia indexes of the OA joints was significantly higher than that of the control joints. Each index of acetabular dysplasia demonstrated significantly increased odds ratios for hip OA. Among the OA joints, the deterioration of the OA stage was found to be significantly associated with an increasing grade of acetabular dysplasia. The odds ratio for OA deterioration in the acetabular dysplasia index was also obtained. The joints of females tended to have a higher grade and prevalence of acetabular dysplasia than those of males.These findings confirmed a high prevalence of acetabular dysplasia in hip OA joints in Japan. Acetabular dysplasia was one of the most important factors associated with hip OA. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink