Effect of Cementless Acetabular Component Orientation, Position, and Containment in Total Hip Arthroplasty for Congenital Hip Disease

Abstract We evaluated the effect of the inclination angle, position, and containment of 53 cementless cups inserted in patients with congenital hip disease (CHD), after a minimum of 10 years of follow-up. The polyethylene wear rate was significantly greater when the cup was placed in more than 45° i...

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Bibliographic Details
Published inThe Journal of arthroplasty Vol. 25; no. 7; pp. 1143 - 1150
Main Authors Georgiades, George, MD, Babis, George C., MD, Kourlaba, Georgia, MSc, Hartofilakidis, George, MD
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.10.2010
Subjects
Acetabulum - diagnostic imaging
Acetabulum - surgery
Adult
Aged
Arthroplasty, Replacement, Hip - instrumentation
Arthroplasty, Replacement, Hip - methods
cementless acetabular component
congenital hip disease
containment
Female
Follow-Up Studies
Hip Dislocation, Congenital - surgery
Hip Joint - diagnostic imaging
Hip Joint - surgery
Hip Prosthesis
Humans
Longitudinal Studies
Male
Middle Aged
orientation
Orthopedics
Osteolysis - epidemiology
Osteolysis - etiology
Polyethylene
position
Prevalence
Prosthesis Failure - adverse effects
Prosthesis Fitting
Radiography
Retrospective Studies
Treatment Outcome
congenital hip disease
containment
orientation
position
cementless acetabular component
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Summary:Abstract We evaluated the effect of the inclination angle, position, and containment of 53 cementless cups inserted in patients with congenital hip disease (CHD), after a minimum of 10 years of follow-up. The polyethylene wear rate was significantly greater when the cup was placed in more than 45° inclination ( P = .045) or if the cup was placed lateral to the teardrop position by more than 25 mm ( P = .001). Aseptic loosening of the femoral component was significantly greater when the cup was placed more than 25 mm superiorly to the teardrop ( P = .049). Cup placement of more than 25 mm lateral to the teardrop affected significantly periacetabular osteolysis ( P = .032). In CHD cases, it is preferable to avoid excessive vertical inclination, lateral, and superior placement of cementless cups in an attempt to obtain better containment.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2009.12.016