title: Hip Arthroplasty and its Revision in a Child: Case Report and Literature Review.
abstract: Juvenile idiopathic arthritis is the leading cause of hip replacement in young children. However, arthroplasty in this population is challenging with several concerns about quality of the growing bone, young age for revision surgery, and difficulties in potential several revisions. In this study we introduce a case of a 12-year old who is one of the youngest patients to undergo revision hip arthroplasty. The index operation was done as a hybrid replacement, cemented for stem and press fit for acetabular component. Two years later revision was done with severe femoral deficiency. This second procedure was challenging but with short-term promising results. So we reviewed the literature for arthroplasty in this young population regarding recent findings and trends. According to the literature survival of the prosthesis is longer with a cemented acetabular component and press fit stem; however, there are evidences that show poor outcome of joint replacement after the first revision in juvenile idiopathic arthritis patients.
authors.affiliation: Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Gharehdaghi
authors.affiliation: Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Hasan
authors.initials: H
authors.lastname: Rahimi
authors.affiliation: Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Eshraghi
authors.affiliation: Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Mousavian
authors.affiliation: Orthopedic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Assadian
keywords: Arthritis; Idiopathic; Juvenile; Revision; Total hip replacement