Decreased interposition after closed reduction in the hip joint: A case of developmental dislocation of the hip observed by MRI

Wataru Watanabe; Eiji Itoi; Shin Yamada; Ryuji Sashi

doi:10.1007/s007760200066

Decreased interposition after closed reduction in the hip joint: A case of developmental dislocation of the hip observed by MRI

Wataru Watanabe, Eiji Itoi, Shin Yamada, Ryuji Sashi

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A 4-month-old Japanese girl with a developmental dislocation of the right hip was treated with manual reduction under general anesthesia followed by cast immobilization. Serial magnetic resonance imaging (MRI) revealed that a large interposition of fat tissue in the acetabulum, observed immediately after cast immobilization, became remarkably small in size as the congruity improved after 3 weeks. These MRI findings demonstrate the mechanism of a "squeezing phenomenon" after reduction of the hip.

Original language	English
Pages (from-to)	397-399
Number of pages	3
Journal	Journal of Orthopaedic Science
Volume	7
Issue number	3
DOIs	https://doi.org/10.1007/s007760200066
Publication status	Published - 2002 Jan 1
Externally published	Yes

Keywords

Developmental dislocation of the hip
Interposition
Magnetic resonance imaging
Shrinkage of the interposition

ASJC Scopus subject areas

Surgery
Orthopedics and Sports Medicine

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10.1007/s007760200066

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abstract = "A 4-month-old Japanese girl with a developmental dislocation of the right hip was treated with manual reduction under general anesthesia followed by cast immobilization. Serial magnetic resonance imaging (MRI) revealed that a large interposition of fat tissue in the acetabulum, observed immediately after cast immobilization, became remarkably small in size as the congruity improved after 3 weeks. These MRI findings demonstrate the mechanism of a {"}squeezing phenomenon{"} after reduction of the hip.",

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T2 - A case of developmental dislocation of the hip observed by MRI

AU - Watanabe, Wataru

AU - Itoi, Eiji

AU - Yamada, Shin

AU - Sashi, Ryuji

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N2 - A 4-month-old Japanese girl with a developmental dislocation of the right hip was treated with manual reduction under general anesthesia followed by cast immobilization. Serial magnetic resonance imaging (MRI) revealed that a large interposition of fat tissue in the acetabulum, observed immediately after cast immobilization, became remarkably small in size as the congruity improved after 3 weeks. These MRI findings demonstrate the mechanism of a "squeezing phenomenon" after reduction of the hip.

AB - A 4-month-old Japanese girl with a developmental dislocation of the right hip was treated with manual reduction under general anesthesia followed by cast immobilization. Serial magnetic resonance imaging (MRI) revealed that a large interposition of fat tissue in the acetabulum, observed immediately after cast immobilization, became remarkably small in size as the congruity improved after 3 weeks. These MRI findings demonstrate the mechanism of a "squeezing phenomenon" after reduction of the hip.

KW - Developmental dislocation of the hip

KW - Interposition

KW - Magnetic resonance imaging

KW - Shrinkage of the interposition

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