Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 723 articles


Is Routine Mid-term Total Hip Arthroplasty Surveillance Beneficial?

James A. Keeney MD, Bradley S. Ellison MD, William J. Maloney MD, John C. Clohisy MD

Routine followup of patients after primary or revision THA is commonly practiced and driven by concerns that delays in identifying early failure will result in more complicated or more costly surgical interventions. Although mid-term followup (4–10 years) has been performed to follow cohorts of patients, the benefit of observing individual patients regardless of symptoms has not been established.

Prevention of Nerve Injury After Periacetabular Osteotomy

Rafael J. Sierra MD, Paul Beaule MD, Ira Zaltz MD, Michael B. Millis MD, John C. Clohisy MD, Robert T. Trousdale MD

The Bernese periacetabular osteotomy (PAO) is the preferred pelvic osteotomy in many centers treating symptomatic acetabular dysplasia in the young adult. Major nerve injury has been reported as a complication that can occur with this complex procedure, but the incidence and circumstances associated with such injury are not well known.

MRI of Hip Cartilage: Joint Morphology, Structure, and Composition

Stephanie L. Gold BA, Alissa J. Burge MD, Hollis G. Potter MD

Accurate, reproducible, and noninvasive assessment of hip cartilage is clinically relevant and provides a means by which to assess the suitability of candidates for arthroscopic or open surgical procedures and the response to such interventions over time. Given the relatively thin cartilage of the hip and the complex spherical anatomy, however, accurately assessing the cartilage poses a challenge for traditional MRI techniques.

High Failure Rate with the GAP II Ring and Impacted Allograft Bone in Severe Acetabular Defects

Martin A. Buttaro MD, Diego Muñoz la Rosa MD, Fernando Comba MD, Francisco Piccaluga MD

Reconstruction rings and bone allografts have been proposed to manage severe acetabular bone loss. However, a high early failure rate of the Graft Augmentation Prosthesis (GAP) II reinforcement ring (Stryker Orthopaedics, Mahwah, NJ, USA) has been reported in one small series.

Highly Crosslinked Polyethylene Does Not Reduce Aseptic Loosening in Cemented THA 10-year Findings of a Randomized Study

Per-Erik Johanson MD, Georgios Digas MD, PhD, Peter Herberts MD, PhD, Jonas Thanner MD, PhD, Johan Kärrholm MD, PhD

Polyethylene (PE) wear particles are believed to cause aseptic loosening and thereby impair function in hip arthroplasty. Highly crosslinked polyethylene (XLPE) has low short- and medium-term wear rates. However, the long-term wear characteristics are unknown and it is unclear whether reduced wear particle burden improves function and survival of cemented hip arthroplasty.

Case Report: High Chromium and Cobalt Levels in a Pregnant Patient with Bilateral Metal-on-Metal Hip Arthroplasties

Juliane Fritzsche PhD, Cornelia Borisch MD, Christof Schaefer MD, PhD

Metal-on-metal bearings frequently are used in young patients leading to the concern that disseminated metals such as chromium (Cr) and cobalt (Co) as the main constituents could affect pregnancies.

Head Material Influences Survival of a Cemented Total Hip Prosthesis in the Norwegian Arthroplasty Register

Thomas Kadar MD, Eva Dybvik MSc, Geir Hallan MD, PhD, Ove Furnes MD, PhD, Leif Ivar Havelin MD, PhD

High prosthesis survival is reported for total hip prostheses with metal and alumina heads, but direct comparisons of a single prosthesis design with one of two different head materials has seldom been studied. Prostheses with zirconia heads are less commonly used than metal and alumina heads, and the few reports suggest variable results with zirconia heads.

Is a Cementless Dual Mobility Socket in Primary THA a Reasonable Option?

Moussa Hamadouche MD, PhD, Hervé Arnould MD, Bertrand Bouxin MD

Dislocation after THA continues to be relatively common. Dual mobility sockets have been associated with low dislocation rates, but it remains unclear whether their use in primary THA would not introduce additional complications.

Does Standing Affect Acetabular Component Inclination and Version After THA?

Gregory G. Polkowski MD, Ryan M. Nunley MD, Erin L. Ruh MS, Brandon M. Williams DC, Robert L. Barrack MD

Avoiding complications after hip arthroplasty with hard-on-hard bearings, especially metal-on-metal, correlates with the position of the acetabular component. Supine imaging with conventional radiography has traditionally been utilized to assess component inclination (abduction), as well as anteversion, after THA and surface replacement arthroplasty (SRA). However, most adverse events with hard bearings (excessive wear and squeaking) have occurred with loading. Standing imaging, therefore, should provide more appropriate measurements.

Is the Infection Rate in Primary THA Increased After Steroid Injection?

Geert Meermans MD, Kristoff Corten MD, Jean-Pierre Simon MD, PhD

Injection of the hip is performed for diagnostic and therapeutic reasons. Articular cartilage deterioration and increased risk of prosthetic infection have been reported with steroid injections. However, the literature contains contradictory reports on an increased risk of infection after a subsequent THA.