Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 725 articles


Unstable Intertrochanteric Femur Fractures: Is There a Consensus on Definition and Treatment in Germany?

Matthias Knobe MD, Gertraud Gradl MD, Andreas Ladenburger MD, Ivan S. Tarkin MD, Hans-Christoph Pape MD

Extramedullary and intramedullary implants have improved in recent years, although consensus is lacking concerning the definition and classification of unstable intertrochanteric fractures, with uncertainties regarding treatment.

Does the Extent of Osteonecrosis Affect the Survival of Hip Resurfacing?

Satoshi Nakasone MD, Masaki Takao MD, PhD, Takashi Sakai MD, PhD, Takashi Nishii MD, PhD, Nobuhiko Sugano MD, PhD

The effect of the extent of osteonecrosis on the survival of hip resurfacing for osteonecrosis of the femoral head (ONFH) has not been well documented, but is a potentially important variable in the decision to perform resurfacing.

Cumulative Revision Rate is Higher in Metal-on-Metal THA than Metal-on-Polyethylene THA: Analysis of Survival in a Community Registry

Der-Chen T. Huang MD, Penny Tatman MPH, Susan Mehle BS, Terence J. Gioe MD

Metal-on-metal (MOM) THA bearing technology has focused on improving the arc of motion and stability and minimizing wear compared with traditional metal-on-polyethylene (MOP) bearing couples. It is unclear whether this more costly technology adds value in terms of improved implant survival.

Closed Bone Graft Epiphysiodesis for Avascular Necrosis of the Capital Femoral Epiphysis

George H. Thompson MD, Ethan S. Lea MD, MS, Kenneth Chin MD, Raymond W. Liu MD, Jochen P. Son-Hing MD, Allison Gilmore MD

Avascular necrosis (AVN) of the capital femoral epiphysis (CFE) after an unstable slipped capital femoral epiphysis (SCFE), femoral neck fracture or traumatic hip dislocation can result in severe morbidity. Treatment options for immature patients with AVN are limited, including a closed bone graft epiphysiodesis (CBGE). However, it is unclear whether this procedure prevents AVN progression.

Slipped Capital Femoral Epiphysis: Relevant Pathophysiological Findings With Open Surgery

Kai Ziebarth MD, Michael Leunig MD, Theddy Slongo MD, Young-Jo Kim MD, PhD, Reinhold Ganz MD

Traditionally arthrotomy has rarely been performed during surgery for slipped capital femoral epiphysis (SCFE). As a result, most pathophysiological information about the articular surfaces was derived clinically and radiographically. Novel insights regarding deformity-induced damage and epiphyseal perfusion became available with surgical hip dislocation.

Postoperative Improvement of Femoroacetabular Impingement After Intertrochanteric Flexion Osteotomy for SCFE

Takashi Saisu MD, PhD, Makoto Kamegaya MD, PhD, Yuko Segawa MD, PhD, Jun Kakizaki MD, Kazuhisa Takahashi MD, PhD

Patients with slipped capital femoral epiphysis (SCFE) may develop cam-type femoroacetabular impingement (FAI). Early management of FAI has been advocated for patients with symptomatic FAI. The various treatment options, including reorientation surgeries, realignment procedures, and osteoplasty, remain controversial.

Symptomatic Femoroacetabular Impingement: Does the Offset Decrease Correlate With Cartilage Damage? A Pilot Study

Christoph Zilkens MD, Falk Miese MD, RĂ¼diger Krauspe MD, Bernd Bittersohl MD

Current measures of the reduced head-neck offset such as residual deformity of slipped capital femoral epiphysis (SCFE) including the alpha angle, which measures the femoral head-neck sphericity but does not account for acetabular abnormalities, do not represent the true magnitude of the deformity and the mechanical consequences. The beta angle (angle between the femoral head-neck junction and acetabular rim) accounts for the morphology of both the acetabulum and femur and, thus, may be the more appropriate parameter for assessing SCFE deformity.

A Reduction in Body Mass Index Lowers Risk for Bilateral Slipped Capital Femoral Epiphysis

Adam Y. Nasreddine MA, Benton E. Heyworth MD, David Zurakowski PhD, Mininder S. Kocher MD, MPH

Slipped capital femoral epiphysis (SCFE) is occurring in greater numbers, at increasingly younger ages, and more frequently bilaterally (BL-SCFE). Obesity is one risk factor for SCFE. However, it is unclear whether postoperative decreases or increases in body mass index (BMI) alter the risk of subsequent contralateral SCFE.

Novel CT-based Three-dimensional Software Improves the Characterization of Cam Morphology

Michael T. Milone BA, Asheesh Bedi MD, Lazaros Poultsides MD, PhD, Erin Magennis BA, J. W. Thomas Byrd MD, Christopher M. Larson MD, Bryan T. Kelly MD

Incomplete correction of femoral offset and sphericity remains the leading cause for revision surgery for symptomatic femoroacetabular impingement (FAI). Because arthroscopic exploration is technically difficult, a detailed preoperative understanding of morphology is of paramount importance for preoperative decision-making.

Increased Acetabular Depth May Influence Physeal Stability in Slipped Capital Femoral Epiphysis

David A. Podeszwa MD, David Gurd MD, Anthony Riccio MD, Adriana Rocha MS, Daniel J. Sucato MD, MS

Multiple mechanical factors affecting the hip have been associated with the development of slipped capital femoral epiphysis (SCFE). Whether acetabular depth plays a role in the development of a SCFE has not been elucidated.