Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 723 articles

Articles

Association of Obesity With Inflammation and Pain After Total Hip Arthroplasty

Roja Motaghedi MD, James J. Bae MSc, Stavros G. Memtsoudis MD, PhD, David H. Kim MD, Jonathan C. Beathe MD, Leonardo Paroli MD, PhD, Jacques T. YaDeau MD, PhD, Michael A. Gordon MD, Daniel B. Maalouf MD, MPH, Yi Lin MD, PhD, Yan Ma PhD, Susanna Cunningham-Rundles PhD, Spencer S. Liu MD

The prevalence of obesity is increasing, and obesity often leads to degenerative joint disease requiring total hip arthroplasty (THA). Obesity is a proinflammatory state associated with an increase in chronic, low-grade inflammatory response. As such, it may augment the postoperative inflammatory response, which has been associated with postoperative pain and complications.

Surgical Hip Dislocation for Treatment of Femoroacetabular Impingement: Factors Predicting 5-year Survivorship

Simon D. Steppacher MD, Carmen Huemmer MD, MSC, Joseph M. Schwab MD, Moritz Tannast MD, Klaus A. Siebenrock MD

Patients with femoroacetabular impingement (FAI) often develop pain, impaired function, and progression of osteoarthritis (OA); this is commonly treated using surgical hip dislocation, femoral neck and acetabular rim osteoplasty, and labral reattachment. However, results with these approaches, in particular risk factors for OA progression and conversion to THA, have varied.

Comparison of Robotic-assisted and Conventional Acetabular Cup Placement in THA: A Matched-pair Controlled Study

Benjamin G. Domb MD, Youssef F. El Bitar MD, Adam Y. Sadik BS, Christine E. Stake MA, Itamar B. Botser MD

Improper acetabular component orientation in THA has been associated with increased dislocation rates, component impingement, bearing surface wear, and a greater likelihood of revision. Therefore, any reasonable steps to improve acetabular component orientation should be considered and explored.

Randomized Trial of Hemiarthroplasty versus Internal Fixation for Femoral Neck Fractures: No Differences at 6 Years

Ragnhild Øydna Støen MD, Cathrine M. Lofthus MD, PhD, Lars Nordsletten MD, PhD, Jan Erik Madsen MD, PhD, Frede Frihagen MD, PhD

Hemiarthroplasty has been shown superior to internal fixation for displaced femoral neck fractures (FNF) in the first 2 years. However, there are unanswered questions about the performance of hemiarthroplasty over the longer term compared with internal fixation.

Stability and Trunnion Wear Potential in Large-diameter Metal-on-Metal Total Hips: A Finite Element Analysis

Jacob M. Elkins MD, PhD, John J. Callaghan MD, Thomas D. Brown PhD

Large-diameter femoral heads for metal-on-metal THA hold theoretical advantages of joint stability and low bearing surface wear. However, recent reports have indicated an unacceptably high rate of wear-associated failure with large-diameter bearings, possibly due in part to increased wear at the trunnion interface. Thus, the deleterious consequences of using large heads may outweigh their theoretical advantages.

Elevation of Serum Tumor Necrosis Factor α in Patients with Periprosthetic Osteolysis: A Case-Control Study

R. Krishna Chaganti MD, Edward Purdue PhD, Thomas P. Sculco MD, Lisa A. Mandl MD

Periprosthetic osteolysis is the leading reason for THA revision. The relationship of serum biomarkers with severe radiographic periprosthetic osteolysis has not been defined but may be important to direct future research and clinical therapeutics.

Does the Direct Anterior Approach in THA Offer Faster Rehabilitation and Comparable Safety to the Posterior Approach?

José A. Rodriguez MD, Ajit J. Deshmukh MD, Parthiv A. Rathod MD, Michelle L. Greiz PT, Prashant P. Deshmane MD, Matthew S. Hepinstall MD, Amar S. Ranawat MD

Newer surgical approaches to THA, such as the direct anterior approach, may influence a patient’s time to recovery, but it is important to make sure that these approaches do not compromise reconstructive safety or accuracy.

High Frequency of Adverse Local Tissue Reactions in Asymptomatic Patients With Metal-on-Metal THA

Thomas K. Fehring MD, Susan Odum PhD, Robert Sproul MD, Jessica Weathersbee PA-C

The key to successful management of patients with metal-on-metal (MOM) THAs is to diagnose adverse local tissue reactions (ALTRs) early. ALTRs have been described in asymptomatic patients with resurfacing arthroplasties. Whether this concerning finding applies to modular MOM THAs is unknown.

Treatment of Femoral Head Osteonecrosis in the United States: 16-year Analysis of the Nationwide Inpatient Sample

Aaron J. Johnson MD, Michael A. Mont MD, Audrey K. Tsao MD, Lynne C. Jones PhD

Many surgical interventions are used to treat osteonecrosis of the femoral head. The instance and distribution of these various procedures may give some insight into the practicing community’s understanding of the efficacy of these treatments. We therefore sought to determine trends in the types and numbers of procedures performed for atraumatic osteonecrosis from 1992 through 2008 in the United States.

Persistent Structural Disease Is the Most Common Cause of Repeat Hip Preservation Surgery

John C. Clohisy MD, Jeffrey J. Nepple MD, Christopher M. Larson MD, Ira Zaltz MD, Michael Millis MD

Hip preservation surgery has become more commonplace, yet when it fails, it is unclear why it does so. Understanding failed procedures should lead to improved surgical results.