title: Hip MRI and its implications for surgery in osteoarthritis patients.
abstract: Osteoarthritis (OA) of the hip joint stems from a combination of intrinsic factors, such as joint anatomy, and extrinsic factors, such as injuries, diseases, and load. Possible risk factors for OA are instability and impingement. Different surgical techniques, such as osteotomies of the pelvis and femur, surgical dislocation, and hip arthroscopy, are being performed to delay or halt OA. Success of salvage procedures of the hip depends on the existing cartilage and joint damage before surgery. The likelihood of therapy failure rises with advanced OA. For imaging of intra-articular hip pathology, MRI represents the best technique because it enables clinicians to directly visualize cartilage, it provides superior soft tissue contrast, and it offers the prospect of multidimensional imaging. However, opinions differ on the diagnostic efficacy of MRI and on the question of which MRI technique is most appropriate. This article gives an overview of the standard MRI techniques for diagnosis of hip OA and their implications for surgery.
authors.affiliation: Department of Orthopedic Surgery, University of Bern, Freiburgstrasse, 3010 Bern, Switzerland. mamisch@bwh.harvard.edu
authors.forename: Tallal C
authors.initials: TC
authors.lastname: Mamisch
authors.forename: Christoph
authors.initials: C
authors.lastname: Zilkens
authors.forename: Klaus A
authors.initials: KA
authors.lastname: Siebenrock
authors.forename: Bernd
authors.initials: B
authors.lastname: Bittersohl
authors.forename: Young-Jo
authors.initials: YJ
authors.lastname: Kim
authors.forename: Stefan
authors.initials: S
authors.lastname: Werlen
mesh_terms: D002358:Cartilage, Articular / Q000473:pathology; D006621:Hip Joint / Q000473:pathology* / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D015207:Osteoarthritis, Hip / Q000473:pathology* / Q000601:surgery*; D011300:Preoperative Care