Correlation Between Stress Shielding and Clinical Outcomes After Total Hip Arthroplasty with Extensively Porous Coated Stems

Abstract Relations between stress shielding and the clinical outcomes of total hip arthroplasty(THA) remain topics of debate. This study was performed on 51 patients that underwent unilateral primary THA with an extensively porous coated stem. Contralateral normal femurs were used as controls. Dual...

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Bibliographic Details
Published in:The Journal of arthroplasty 2013-12, Vol.28 (10), p.1728-1730
Main Authors: Kwon, Dae Gyu, MD, Lee, Tong Joo, MD, Kang, Joon Soon, MD, Moon, Kyoung Ho, MD
Format: Article
Language:English
Subjects:
Absorptiometry, Photon
Adult
Aged
Aged, 80 and over
Arthroplasty, Replacement, Hip - adverse effects
Bone Density
bone mineral density
Bone Resorption - diagnostic imaging
Bone Resorption - etiology
clinical outcomes
extensively porous coated stem
Female
Femur - diagnostic imaging
Femur - physiopathology
Hip Joint - diagnostic imaging
Hip Joint - surgery
Hip Prosthesis - adverse effects
Humans
Joint Diseases - diagnostic imaging
Joint Diseases - surgery
Male
Middle Aged
Orthopedics
Prosthesis Design
stress shielding
Stress, Mechanical
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Summary:Abstract Relations between stress shielding and the clinical outcomes of total hip arthroplasty(THA) remain topics of debate. This study was performed on 51 patients that underwent unilateral primary THA with an extensively porous coated stem. Contralateral normal femurs were used as controls. Dual energy x-ray absorptiometry data was used to quantify bone mineral density(BMD) on proximal femurs. Clinical outcomes were estimated by using Harris hip scores (HHSs). BMD in operated sides were lower than in control sides. HHS and pain scores were not related to BMD changes. An extensively porous coated stem can be used for THA and that concerns regarding the effects of stress shielding of the proximal femur are unwarranted.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2013.06.036