Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 721 articles


Can Wear Explain the Histological Variation Around Metal-on-metal Total Hips?

Edward Ebramzadeh PhD, Patricia Campbell PhD, Timothy L. Tan MD, Scott D. Nelson MD, Sophia N. Sangiorgio PhD

There is a general perception that adverse local tissue reactions in metal-on-metal hip arthroplasties are caused by wear, but the degree to which this is the case remains controversial.

Metal Artifact Reduction Sequence MRI Abnormalities Occur in Metal-on-polyethylene Hips

Thomas K. Fehring MD, Keith Fehring MD, Susan M. Odum PhD

To determine the importance of MRI abnormalities in metal-on-metal (MoM) bearings, it is important to understand the baseline features of this diagnostic tool in conventional metal-on-polyethylene (MoP) bearings.

Continued Good Results With Modular Trabecular Metal Augments for Acetabular Defects in Hip Arthroplasty at 7 to 11 Years

Michael R. Whitehouse PhD, MSc(Orth Eng), FRCS(Tr&Orth), Bassam A. Masri MD, FRCS(C), Clive P. Duncan MD, MSc, Donald S. Garbuz MD, MHSc

Reconstruction of large acetabular defects remains a substantial challenge in hip arthroplasty. There remains a paucity of data on the long-term results of acetabular trabecular metal augments.

Highly Crosslinked Polyethylene Improves Wear But Not Surface Damage in Retrieved Acetabular Liners

Hee-Nee Pang MD, Douglas D. R. Naudie MD, Richard W. McCalden MD, Steven J. MacDonald MD, Matthew G. Teeter PhD

Highly crosslinked polyethylene (XLPE) is believed to demonstrate better wear resistance than conventional polyethylene (CPE) in total hip arthroplasty.

Does HIV Infection Increase the Risk of Perioperative Complications After THA? A Nationwide Database Study

Qais Naziri MD, Matthew R. Boylan BS, Kimona Issa MD, Lynne C. Jones PhD, Harpal S. Khanuja MD, Michael A. Mont MD

Recent studies have shown successful midterm outcomes after total hip arthroplasty (THA) in patients with human immunodeficiency virus (HIV). However, little data exist on the epidemiology, risk of perioperative complications, and length of stay in patients with HIV receiving THA.

Porous Metal Acetabular Components Have a Low Rate of Mechanical Failure in THA After Operatively Treated Acetabular Fracture

Brandon J. Yuan MD, David G. Lewallen MD, Arlen D. Hanssen MD

Total hip arthroplasty (THA) for the treatment of posttraumatic osteoarthritis (OA) after acetabular fracture has been associated with a high likelihood of aseptic loosening, instability, and infection. Porous metal components may help to address the issue of loosening, but there are few data on the use of porous metal acetabular components for posttraumatic OA after acetabular fracture.

Does the Risk Assessment and Prediction Tool Predict Discharge Disposition After Joint Replacement?

Viktor J. Hansen MD, Kirill Gromov MD, PhD, Lauren M. Lebrun MHA, Harry E. Rubash MD, Henrik Malchau MD, PhD, Andrew A. Freiberg MD

Payers of health services and policymakers place a major focus on cost containment in health care. Studies have shown that early planning of discharge is essential in reducing length of stay and achieving financial benefit; tools that can help predict discharge disposition would therefore be of use. The Risk Assessment and Prediction Tool (RAPT) is a preoperative survey constructed to predict discharge disposition after total joint arthroplasty (TJA). The RAPT was developed and tested on a population of Australian patients undergoing joint replacement, but its validity in other populations is unknown. A low RAPT score is reported to indicate a high risk of needing any form of inpatient rehabilitation after TJA, including short-term nursing facilities.

Biochemical MRI Predicts Hip Osteoarthritis in an Experimental Ovine Femoroacetabular Impingement Model

Klaus A. Siebenrock MD, Karl-Philipp Kienle MD, Simon D. Steppacher MD, Moritz Tannast MD, Tallal C. Mamisch MD, Brigitte Rechenberg MD

Cam-type femoroacetabular impingement (FAI) resulting from an abnormal nonspherical femoral head shape leads to chondrolabral damage and is considered a cause of early osteoarthritis. A previously developed experimental ovine FAI model induces a cam-type impingement that results in localized chondrolabral damage, replicating the patterns found in the human hip. Biochemical MRI modalities such as T2 and T2* may allow for evaluation of the cartilage biochemistry long before cartilage loss occurs and, for that reason, may be a worthwhile avenue of inquiry.

Preservation of the Rectus Femoris Origin During Periacetabular Osteotomy Does Not Compromise Acetabular Reorientation

Christopher L. Peters MD, Jill A. Erickson PA-C, Mike B. Anderson MS, ATC, Lucas A. Anderson MD

The early recovery period after periacetabular osteotomy (PAO) can be limited by pain and activity restrictions. Modifications of the Bernese PAO, including sparing the rectus tendon and discontinuing routine arthrotomy, may accelerate early postoperative recovery compared with the standard approach.

The National Hospital Discharge Survey and Nationwide Inpatient Sample: The Databases Used Affect Results in THA Research

Stijn Bekkers BSc, Arjan G. J. Bot MD, PhD, Dennis Makarawung BSc, Valentin Neuhaus MD, David Ring MD, PhD

The National Hospital Discharge Survey (NHDS) and the Nationwide Inpatient Sample (NIS) collect sample data and publish annual estimates of inpatient care in the United States, and both are commonly used in orthopaedic research. However, there are important differences between the databases, and because of these differences, asking these two databases the same question may result in different answers. The degree to which this is true for arthroplasty-related research has, to our knowledge, not been characterized.