title: The Impact of Lumbar Spine Disease and Deformity on Total Hip Arthroplasty Outcomes.
abstract: Concurrent spine and hip disease is common. Spinal deformities can restrict lumbar range of motion and lumbar lordosis, leading to pelvic obliquity and increased pelvic tilt. A comprehensive preoperative workup and component templating ensure appropriate compensation for altered pelvic parameters for implantation of components according to functional positioning. Pelvic obliquity from scoliosis must be measured to calculate appropriate leg length. Cup positioning should be templated on standing radiograph to limit impingement from cup malposition. In spinal deformity, the optimal position of the cup that accommodates pelvic parameters and limits impingement may lie outside the classic parameters of the safe zone.
authors.affiliation: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA. Electronic address: daniel.blizzard@duke.edu.
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Blizzard
authors.affiliation: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA.
authors.forename: Brian T
authors.initials: BT
authors.lastname: Nickel
authors.affiliation: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA.
authors.forename: Thorsten M
authors.initials: TM
authors.lastname: Seyler
authors.affiliation: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA.
authors.forename: Michael P
authors.initials: MP
authors.lastname: Bolognesi
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D001696:Biomechanical Phenomena; D015897:Comorbidity; D006621:Hip Joint / Q000502:physiology; D006622:Hip Prosthesis; D006801:Humans; D007738:Kyphosis / Q000453:epidemiology / Q000503:physiopathology*; D008159:Lumbar Vertebrae / Q000503:physiopathology*; D015207:Osteoarthritis, Hip / Q000453:epidemiology / Q000503:physiopathology / Q000601:surgery*; D055013:Osteoarthritis, Spine / Q000453:epidemiology / Q000503:physiopathology*; D010388:Pelvis / Q000503:physiopathology; D011187:Posture / Q000502:physiology; D016059:Range of Motion, Articular; D012600:Scoliosis / Q000453:epidemiology / Q000503:physiopathology*; D016896:Treatment Outcome
keywords: Kyphosis; Lumbar; Pelvic tilt; Sagittal balance; Scoliosis; Spinal deformity; THA; Total hip arthroplasty