Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 723 articles


Similar Clinical Outcomes for THAs With and Without Prior Periacetabular Osteotomy

Derek F. Amanatullah MD, PhD, Louis Stryker MD, Perry Schoenecker MD, Michael J. Taunton MD, John C. Clohisy MD, Robert T. Trousdale MD, Rafael J. Sierra MD

Some patients opt to undergo conversion to a THA for continued pain or progression of hip arthritis after periacetabular osteotomy. Whether patients are at greater risk for postoperative complications, revision THA, poor clinical outcomes, or compromised radiographic results after periacetabular osteotomy is debatable.

Eighty Percent of Patients With Surgical Hip Dislocation for Femoroacetabular Impingement Have a Good Clinical Result Without Osteoarthritis Progression at 10 Years

Simon D. Steppacher MD, Helen Anwander MD, Corinne A. Zurmühle MD, Moritz Tannast MD, Klaus A. Siebenrock MD

We previously reported the 5-year followup of hips with femoroacetabular impingement (FAI) that underwent surgical hip dislocation with trimming of the head-neck junction and/or acetabulum including reattachment of the labrum. The goal of this study was to report a concise followup of these patients at a minimum 10 years.

No Regeneration of the Human Acetabular Labrum After Excision to Bone

Hermes H. Miozzari MD, Marco Celia MD, John M. Clark MD, PhD, Stefan Werlen MD, Florian D. Naal MD, Hubert P. Nötzli MD

Treatment options for a symptomatic, torn, irreparable, or completely ossified acetabular labrum are limited to either excision and/or reconstruction with grafts. In a previous animal model, regeneration of the acetabular labrum after excision to the bony rim has been shown. In humans, less is known about the potential of regeneration of the labrum. Recent studies seem to confirm labral regrowth, but it is still unclear if wide excision might be a surgical option in cases where repair is not possible.

How Do Acetabular Version and Femoral Head Coverage Change With Skeletal Maturity?

Andreas M. Hingsammer MD, Sarah Bixby MD, David Zurakowski PhD, Yi-Meng Yen MD, PhD, Young-Jo Kim MD, PhD

Normal changes in acetabular version over the course of skeletal development have not been well characterized. Knowledge of normal version development is important because acetabular retroversion has been implicated in several pathologic hip processes.

What Are the Demographic and Radiographic Characteristics of Patients With Symptomatic Extraarticular Femoroacetabular Impingement?

Benjamin F. Ricciardi MD, Peter D. Fabricant MD, MPH, Kara G. Fields MS, Lazaros Poultsides MD, MS, PhD, Ira Zaltz MD, Ernest L. Sink MD

Extraarticular femoroacetabular impingement (FAI) can result in symptomatic hip pain, but preoperative demographic, radiographic, and physical examination findings have not been well characterized.

Can Femoral Rotation Be Localized and Quantified Using Standard CT Measures?

Andrew G. Georgiadis MD, Daniel S. Siegal MD, Courtney E. Scher DO, Ira Zaltz MD

The terms “femoral anteversion” and “femoral torsion” have often been used interchangeably in the orthopaedic literature, yet they represent distinct anatomical entities. Anteversion refers to anterior tilt of the femoral neck, whereas torsion describes rotation of the femoral shaft. Together, these and other transverse plane differences describe what may be considered rotational deformities of the femur. Assessment of femoral rotation is now routinely measured by multiple axial CT methods. The most widely used radiographic technique (in which only two CT-derived axes are made, one through the femoral neck and one at the distal femoral condyles) may not accurately quantify proximal femoral anatomy nor allow identification of the anatomic locus of rotation.

Do Sex and BMI Predict or Does Stem Design Prevent Muscle Damage in Anterior Supine Minimally Invasive THA?

Benjamin M. Frye MD, Keith R. Berend MD, Adolph V. Lombardi MD, Michael J. Morris MD, Joanne B. Adams BFA

Cadaveric and clinical studies have suggested that, despite being touted as muscle-sparing, the direct anterior approach is still associated with muscle damage, particularly to the tensor fascia lata (TFL). Patient body mass index (BMI) and/or sex may also influence this parameter.

What Factors Predict Improvements in Outcomes Scores and Reoperations After the Bernese Periacetabular Osteotomy?

Paul E. Beaulé MD, Chris Dowding MD, Gillian Parker BSc, Jae-Jin Ryu PhD

The Bernese periacetabular osteotomy (PAO) has entered its fourth decade and is frequently used for corrective osteotomy in patients with acetabular dysplasia. Although our capacity to preserve the joint after corrective osteotomy is excellent, gaining a better understanding on how well patients function after this surgery is important as well.

Large-diameter Metal-on-metal Total Hip Arthroplasty: Dislocation Infrequent but Survivorship Poor

Adolph V. Lombardi MD, Keith R. Berend MD, Michael J. Morris MD, Joanne B. Adams BFA, Michael A. Sneller BS

Use of large-diameter metal-on-metal (MoM) articulations in THA increased, at least in part, because of the possibility of achieving improved joint stability and excellent wear characteristics in vitro. However, there have been subsequent concerning reports with adverse reactions to metal debris (ARMD), pseudotumors, and systemic complications related to metal ions.

Are Custom Triflange Acetabular Components Effective for Reconstruction of Catastrophic Bone Loss?

Carl C. Berasi MD, Keith R. Berend MD, Joanne B. Adams BFA, Erin L. Ruh MS, Adolph V. Lombardi MD

Although the introduction of ultraporous metals in the forms of acetabular components and augments has increased the orthopaedic surgeon’s ability to reconstruct severely compromised acetabuli, there remain some that cannot be managed readily using cups, augments, or cages. In such situations, allograft-prosthetic composites or custom acetabular components may be called for. However, few studies have reported on the results of these components.