Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 721 articles

Articles

Is Total Hip Arthroplasty after Hip Arthrodesis as Good as Primary Arthroplasty?

Mariano Fernandez-Fairen PhD, MD, Antonio Murcia-Mazón PhD, MD, Ana Torres MD, Virginia Querales MD, Antonio Murcia MD

Conversion of hip arthrodesis to a THA reportedly provides a reasonable solution, improving function, reducing back and knee pain, and slowing degeneration of neighboring joints associated with a hip fusion. Patients generally are satisfied with conversion despite the fact that range of mobility, muscle strength, leg-length discrepancy (LLD), persistence of limp, and need for assistive walking aids generally are worse than those for conventional primary THA.

Intraoperative Radiographs for Placing Acetabular Components in Hip Resurfacing Arthroplasty

Thomas P. Gross MD, Fei Liu PhD, Lee Webb NP

Various clinical and biomechanical studies suggest certain acetabular positions may be associated with higher wear and failure rates in modern metal-on-metal hip resurfacing arthroplasties. However, there are no widely available, reliable, and cost-effective surgical techniques that ensure surgeons are able to place an acetabular component within the safe range of inclination angles after hip resurfacing surgeries.

Direct Anterior Approach for Hip Resurfacing: Surgical Technique and Complications

Stefan Kreuzer MD, Kevin Leffers BS, Suneel Kumar MD

The direct anterior approach (DAA) for hip resurfacing arthroplasty is a technically difficult approach but theoretically reduces the soft tissue trauma to the hip because it does not require muscle detachments from the bone. Furthermore, the patient is in the supine position facilitating fluoroscopy to control component placement. However, the complications associated with the learning curve and functional outcome scores are not well defined in the literature.

Early Markers of Nephrotoxicity in Patients With Metal-on-metal Hip Arthroplasty

Massimo Corradi MD, Joseph Daniel FRCS, Hena Ziaee BSc (Hons), Rossella Alinovi BSc, Antonio Mutti MD, Derek J. W. McMinn FRCS

Metal ions released from arthroplasty devices are largely cleared in urine, leading to high exposure in renal tissues. Validated early markers of renal damage are routinely used to monitor workers in heavy metal industries, and renal risk can be quantified in these industries. It is unclear if the ion levels in patients with metal-on-metal hips are sufficient to cause renal damage.

A Comparison of Two Implant Systems in Restoration of Hip Geometry in Arthroplasty

Michael J. Archibeck MD, Tamara Cummins RT(R)(ARRT), Joshua Carothers MD, Daniel W. Junick MD, Richard E. White MD

Restoration of hip offset and leg length during THA is often limited by available implant geometries. The recent introduction of femoral components with a modular junction at the base of the neck (two modular junction components) has expanded the options to restore femoral offset and leg length.

Does Trochanteric Transfer Eliminate the Trendelenburg Sign in Adults?

Flávio L. Garcia MD, PhD, Celso H. F. Picado MD, PhD, Luís P. Cardinali MD

Premature closure of the proximal femoral growth plate results in coxa brevis, which usually is associated with insufficiency of the hip abductors. Distal and lateral transfer of the greater trochanter sometimes is recommended to correct this problem. Most of what is known arises from studies of children and adolescents.

Risk Factors for Revision of Hip Arthroplasties in Patients Younger Than 30 Years

Julien Girard MD, MSc, Christophe Glorion MD, François Bonnomet MD, Damien Fron MD, Henri Migaud MD

Numerous reports of THAs in patients younger than 30 years indicate a high risk of revision. Although risk factors for revision have been reported for older patients, it is unclear whether these risk factors are the same as those for patients younger than 30 years.

Hip Dislocation: Are Hip Precautions Necessary in Anterior Approaches?

Camilo Restrepo MD, S. M. Javad Mortazavi MD, Justin Brothers BS, Javad Parvizi MD FRCS, Richard H. Rothman MD, PhD

In 2005, we reported removal of functional restriction after primary THA performed through the anterolateral approach did not increase the incidence of dislocation.

No Strength or Gait Benefit of Two-incision THA: A Brief Followup at 1 Year

Aaron J. Krych MD, Mark W. Pagnano MD, Krista Coleman Wood PhD, PT, R. Michael Meneghini MD, Kenton Kaufman PhD, PE

Using comprehensive gait analysis and strength testing, we previously investigated the early (2-month) functional outcome after THA using two-incision and mini-posterior surgical approaches and found an advantage for the mini-posterior approach. Benefits included improved muscle strength, a less antalgic gait, and better hip function as reflected by changes in hip moments during level walking and stair climbing. We questioned how these differences in function would fare with longer followup.

Markers of Thrombin Generation During Resurfacing and Noncemented Total Hip Arthroplasty: A Pilot Study

Edwin P. Su MD, Nikos Chatzoudis MD, Vasileios Sioros MD, George Go BS, Nigel E. Sharrock BMedSci, MB, ChB

Hip resurfacing arthroplasty (HRA) could be associated with an increased risk of deep vein thrombosis (DVT) compared to traditional noncemented THA because it involves greater dissection, increased kinking and distortion of the femoral vessels, takes longer to perform, and involves insertion of some cement into the femur.