A Motion Study of the Bipolar Endoprostheses of the Femoral Head

Fifty-one hips replaced by bipolar endoprosthesis were reviewed with special reference to the movement among the acetabulum, outer head and inner head for a mean follow-up period of 30 months. Average clinical hip score of Japanese Orthopaedic Association was 78.0 at the follow-up. The results show...

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Bibliographic Details
Published inOrthopedics & Traumatology Vol. 39; no. 4; pp. 1412 - 1415
Main Authors Takemoto, Hitoshi, Higuchi, Fujio, Sakai, Ryou, Shinami, Naoto, Inoue, Akio, Tokuyasu, Hideyo, Yagi, Masaharu, Ohara, Toshimori, Yoshida, Gou, Hyakutake, Kousuke
Format Journal Article
LanguageEnglish
Published West-Japanese Society of Orthopedics & Traumatology 1991
Subjects
Bipolar endoprosthesis
Hip joint
Motion study
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Summary:Fifty-one hips replaced by bipolar endoprosthesis were reviewed with special reference to the movement among the acetabulum, outer head and inner head for a mean follow-up period of 30 months. Average clinical hip score of Japanese Orthopaedic Association was 78.0 at the follow-up. The results show that the behaviour of the bipolar implants depends on the condition of the host surface of the acetabulum. Namely, in cases with the acetabular cartilage they move chiefly between the acetabulum and outer head. And in cases without the acetabular cartilage, they move chiefly between inner head and outer head.
ISSN:0037-1033
1349-4333
DOI:10.5035/nishiseisai.39.1412