Acetabular Dysplasia and Surgical Approaches Other Than Direct Anterior Increases Risk for Malpositioning of the Acetabular Component in Total Hip Arthroplasty

TY - JOUR

T1 - Acetabular Dysplasia and Surgical Approaches Other Than Direct Anterior Increases Risk for Malpositioning of the Acetabular Component in Total Hip Arthroplasty

AU - Gromov, Kirill

AU - Greene, Meridith E

AU - Huddleston, James I

AU - Emerson, Roger

AU - Gebuhr, Peter

AU - Malchau, Henrik

AU - Troelsen, Anders

N1 - Copyright © 2016 Elsevier Inc. All rights reserved.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Background: Persistent acetabular dysplasia (AD) after periacetabular osteotomy has been hypothesized to increase the risk for malpositioning of the acetabular component. In this study, we investigate whether AD is an independent risk factor for cup malpositioning during primary total hip arthroplasty (THA). Methods: Patient demographics, surgical approach, presence of AD assessed using the lateral center-edge angle, and acetabular cup positioning determined using Martell Hip Analysis Suite were investigated in 836 primary THA patients enrolled in a prospective multicenter study. Results: We found that presence of AD, defined as the lateral center-edge angle of <25°, is an independent risk factor for malpositioning of the acetabular component during primary THA. Surgical approach other than direct anterior was also independently associated with malpositioned cups. Conclusions: Surgeons should therefore take special care during placement of the acetabular component in patients with AD.

AB - Background: Persistent acetabular dysplasia (AD) after periacetabular osteotomy has been hypothesized to increase the risk for malpositioning of the acetabular component. In this study, we investigate whether AD is an independent risk factor for cup malpositioning during primary total hip arthroplasty (THA). Methods: Patient demographics, surgical approach, presence of AD assessed using the lateral center-edge angle, and acetabular cup positioning determined using Martell Hip Analysis Suite were investigated in 836 primary THA patients enrolled in a prospective multicenter study. Results: We found that presence of AD, defined as the lateral center-edge angle of <25°, is an independent risk factor for malpositioning of the acetabular component during primary THA. Surgical approach other than direct anterior was also independently associated with malpositioned cups. Conclusions: Surgeons should therefore take special care during placement of the acetabular component in patients with AD.

KW - Acetabulum

KW - Adult

KW - Aged

KW - Arthroplasty, Replacement, Hip

KW - Female

KW - Hip Dislocation

KW - Hip Prosthesis

KW - Humans

KW - Male

KW - Middle Aged

KW - Osteotomy

KW - Prospective Studies

KW - Risk Factors

KW - Comparative Study

KW - Journal Article

U2 - 10.1016/j.arth.2015.10.045

DO - 10.1016/j.arth.2015.10.045

M3 - Journal article

C2 - 26706838

SN - 0883-5403

VL - 31

SP - 835

EP - 841

JO - Journal of Arthroplasty

JF - Journal of Arthroplasty

IS - 4

ER -