Femoral Head Coverage to Acetabulum with Pelvic Posterior Inclination.

DOI 3 Citations Open Access
  • Osaki Makoto
    Department of Orthopaedic Surgery, Nagasaki University School of Medicine
  • Iwasaki Katsuro
    Department of Orthopaedic Surgery, Nagasaki University School of Medicine
  • Teshima Kitau
    Department of Orthopaedic Surgery, Nagasaki University School of Medicine
  • Doiguchi Yuuichi
    Department of Orthopaedic Surgery, Nagasaki University School of Medicine
  • Yamada Kennji
    Department of Orthopaedic Surgery, Nagasaki University School of Medicine
  • 高橋 克郎
    長崎大学整形外科
  • Sadamatsu Toshirou
    Department of Orthopaedic Surgery, Nagasaki University School of Medicine

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Other Title
  • 骨盤傾斜に伴う臼蓋の骨頭被覆の変化

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To assess the cause of hip lesions when combined with pelvic posterior inclinatiop such as osteoarthritic and rapidly destructive coxopathy-like changes, coverage of the femoral head to the acetabulum was measureed on computed torn ograms of 35 patients, and the relationship between degree of inclination and coverage was investigated. Patients were divided to in three groups according to their degree of pelvic posterior inclination: Group 1; less than 20° of inclination, 18 hips; Group 2; 21-25°, 6 hips; Group 3; more than 26°, 11 hips.<br>There was no statistical difference in total coverage of the head among the three groups. Coverage of the anterior part of the head decreased and coverage of the posterior part of the head increased with an increase in posterior inclination.<br>These findings suggest that the decrease in anterior coverage of the head with increasing pelvic inclination may lead fo the developmenf of some hip lesions.

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