Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 725 articles


Risk Factors for Early Revision After Primary Total Hip Arthroplasty in Medicare Patients

Kevin J. Bozic MD, MBA, Edmund Lau MS, Kevin Ong PhD, Vanessa Chan MPH, Steven Kurtz PhD, Thomas P. Vail MD, Harry E. Rubash MD, Daniel J. Berry MD

Patient, surgeon, health system, and device factors are all known to influence outcomes in THA. However, patient-related factors associated with an increased risk of early failure are poorly understood, particularly in elderly patients.

Outcome of One-stage Cementless Exchange for Acute Postoperative Periprosthetic Hip Infection

Erik Hansen MD, Matthew Tetreault BS, Benjamin Zmistowski BS, Craig J. Della Valle MD, Javad Parvizi MD, Fares S. Haddad MD, William J. Hozack MD

Acute postoperative infection after total hip arthroplasty (THA) is typically treated with irrigation and débridement and exchange of the modular femoral head and acetabular liner. Given a rate of failure exceeding 50% in some series, a one-stage exchange has been suggested as a potential alternative because it allows more thorough débridement and removal of colonized implants. To date, most studies published on the one-stage exchange have used microbe-specific antibiotic-laden bone cement with only one small single-institution series that reported outcomes after a cementless one-stage exchange.

Does Femoral Neck to Cup Impingement Affect Metal Ion Levels in Hip Resurfacing?

Michel J. Le Duff MA, Alicia J. Johnson BA, Andrew J. Wassef MD, Harlan C. Amstutz MD

Impingement of the femoral neck with the acetabular component after metal-on-metal hip resurfacing arthroplasty (HRA) is a possible cause of edge loading and accelerated bearing wear. No attempt has been made to correlate radiographic impingement signs and blood metal ion levels.

Restoration of the Hip Center During THA Performed for Protrusio Acetabuli Is Associated With Better Implant Survival

Yaser M. K. Baghdadi MD, A. Noelle Larson MD, Rafael J. Sierra MD

Acetabular protrusio is an uncommon finding in hip arthritis. Several reconstructive approaches have been used; however the best approach remains undefined.

Complication Rates After Hip or Knee Arthroplasty in Morbidly Obese Patients

Richard J. Friedman MD, Susanne Hess MD, Scott D. Berkowitz MD, Martin Homering MSPH

Morbid obesity has been shown to be a risk factor for increased complications after THA and TKA; however, large studies that would determine the effect size are lacking.

Patients With Unstable Slipped Capital Femoral Epiphysis Have Antecedent Symptoms

Thomas G. McPartland MD, Wudbhav N. Sankar MD, Young-Jo Kim MD, PhD, Michael B. Millis MD

The characteristics of patients who sustain unstable slipped capital femoral epiphyses (SCFEs) are not well described compared to their counterparts who sustain stable SCFE. Although patients with unstable slips are usually identified owing to acute symptoms, it is unclear whether these patients have premonitory symptoms that could heighten the awareness of treating physicians to the possibility of an unstable slip and lead to timely diagnosis and treatment.

CT Pulmonary Angiography After Total Joint Arthroplasty: Overdiagnosis and Iatrogenic Harm?

Michele R. D’Apuzzo MD, Thomas C. Keller MD, Wendy M. Novicoff PhD, James A. Browne MD

CT pulmonary angiography (CTPA) has become widely adopted to detect pulmonary embolism (PE) after total joint arthroplasty (TJA). CTPA is a sensitive tool, which has the ability to detect emboli that may be clinically insignificant. This may lead to iatrogenic harm from overtreatment.

Long-term (20- to 25-year) Results of an Uncemented Tapered Titanium Femoral Component and Factors Affecting Survivorship

Marcus R. Streit MD, MSc, Moritz M. Innmann MD, Christian Merle MD, MSc, Thomas Bruckner PhD, Peter R. Aldinger MD, PhD, Tobias Gotterbarm MD

Uncemented femoral components in primary total hip arthroplasty (THA) are commonly used today, but few studies have evaluated their survival into the third decade.

High Prevalence of Adverse Reactions to Metal Debris in Small-headed ASR™ Hips

Aleksi Reito MD, Timo Puolakka MD, PhD, Petra Elo MD, PhD, Jorma Pajamäki MD, PhD, Antti Eskelinen MD, PhD

There has been increasing concern of metal-on-metal (MOM) hip replacements regarding adverse reactions to metal debris. Information regarding prevalence and risk factors for these adverse reactions is scarce.

Reliability and Validity of Measuring Acetabular Component Orientation by Plain Anteroposterior Radiographs

Ming Lu MD, Yi-Xin Zhou MD, PhD, Hui Du MD, Ji Zhang MD, Jian Liu MD

Inaccurate placement of an acetabular cup can cause impingement, dislocation, and accelerated wear. However, there is no universally agreed-on approach to measuring cup position using plain radiographs.