Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 725 articles


What Ape Proximal Femora Tell Us About Femoroacetabular Impingement: A Comparison

Joost T. Fikkers MSc, Heinse W. Bouma MD, Stefan F. Boer MD, Paul A. Toogood MD, Paulien M. Kampen PhD, Tom Hogervorst MD, PhD

Human hip morphology is variable, and some variations (or hip morphotypes) such as coxa profunda and coxa recta (cam-type hip) are associated with femoroacetabular impingement and the development of osteoarthrosis. Currently, however, this variability is unexplained. A broader perspective with background information on the morphology of the proximal femur of nonhuman apes is lacking. Specifically, no studies exist of nonhuman ape femora that quantify concavity and its variability.

What is the Trouble With Trunnions?

Christina I. Esposito PhD, Timothy M. Wright PhD, Stuart B. Goodman MD, PhD, Daniel J. Berry MD

Recent studies have attributed adverse local tissue reactions (ALTRs) in patients with total hip arthroplasties (THAs) to tribocorrosion debris generated by modular femoral stems. The presentations of ALTR are diverse, as are the causes of it, and the biological responses can be important reasons for failure after THA.

Fluoroscopy and Imageless Navigation Enable an Equivalent Reconstruction of Leg Length and Global and Femoral Offset in THA

Markus Weber MD, Michael Woerner MD, Robert Springorum MD, Ernst Sendtner MD, Alexander Hapfelmeier PhD, Joachim Grifka MD, Tobias Renkawitz MD

Restoration of biomechanics is a major goal in THA. Imageless navigation enables intraoperative control of leg length equalization and offset reconstruction. However, the effect of navigation compared with intraoperative fluoroscopy is unclear.

The John Charnley Award: Highly Crosslinked Polyethylene in Total Hip Arthroplasty Decreases Long-term Wear: A Double-blind Randomized Trial

Siôn Glyn-Jones FRCS, DPhil, Geraint E. R. Thomas MA, MRCS, Patrick Garfjeld-Roberts MA, MRCS, Roger Gundle FRCS, DPhil, Adrian Taylor FRCS, Peter McLardy-Smith FRCS, David W. Murray FRCS, MD

The use of highly crosslinked polyethylene (HXLPE) is now commonplace for total hip arthroplasty. Hip simulator studies and short-term in vivo measurements suggest that the wear rate of some types of HXLPE is significantly less than conventional ultrahigh-molecular-weight polyethylene (UHMWPE). However, there are few long-term data to support its use.

The Bernese Periacetabular Osteotomy: Is Transection of the Rectus Femoris Tendon Essential?

Eduardo N. Novais MD, Young-Jo Kim MD, PhD, Patrick M. Carry BA, Michael B. Millis MD

The Bernese periacetabular osteotomy (PAO) traditionally is performed using the iliofemoral or the ilioinguinal approach with transection of the rectus femoris tendon attachments. Although a rectus-preserving approach has been developed, there is limited direct comparison data regarding the surgical safety, radiographic correction, and improvement in hip pain and function between the rectus-preserving and the classic approaches.

What is the Survivorship of Fully Coated Femoral Components in Revision Hip Arthroplasty?

Paul F. Lachiewicz MD, Elizabeth S. Soileau BSN

Femoral revision using fully coated femoral components offers distinct advantages in patients with notable bone loss. With the increasing concerns being raised about the problems of stem modularity, the results and complications of revision arthroplasty using devices with limited modularity are important.

The Surgical Options and Clinical Evidence for Treatment of Wear or Corrosion Occurring With THA or TKA

Charles A. Engh MD, Henry Ho MSc, Douglas E. Padgett MD

Wear and corrosion occurring in patients with hip and knee arthroplasty are common causes of failure leading to revision surgery. A variety of surgical approaches to these problems have been described, with varying efficacy. Polyethylene wear, metal-on-metal (MoM) hip bearing wear, and problems associated with modular taper corrosion are the areas of greatest clinical impact; results of revisions for these problems are likely to dictate a large portion of revision resources for the foreseeable future, and so they call for specific study.

High Early Failure Rate After Cementless Hip Replacement in the Octogenarian

Esa Jämsen MD, PhD, Antti Eskelinen MD, PhD, Mikko Peltola MSc, Keijo Mäkelä MD, PhD

Use of cementless hip replacements is increasing in many countries, but the best method for fixation for octogenarian patients remains unknown.

Do Jumbo Cups Cause Hip Center Elevation in Revision THA? A Radiographic Evaluation

Chima D. Nwankwo BSc, Michael D. Ries MD

Acetabular revision THA with use of a large (jumbo) cup is an effective treatment for many cavitary and segmental peripheral bone defects. However, hip center elevation may occur with use of a jumbo cup owing to reaming superiorly and/or because of the increased diameter of the jumbo cup compared with the native acetabulum.

Screening for Deep Vein Thrombosis After Periacetabular Osteotomy in Adult Patients: Is It Necessary?

Gregory G. Polkowski MD, MSc, Stephen T. Duncan MD, Adam D. Bloemke MD, Perry L. Schoenecker MD, John C. Clohisy MD

The periacetabular osteotomy has become a common procedure for treating symptomatic acetabular dysplasia. Like other major hip procedures, there is concern regarding the risk of associated venous thromboembolic disease. Nevertheless, there is limited information regarding the need for screening, and optimal prophylactic measures have not been established.