Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 725 articles


Are Antibiotics Necessary in Hip Arthroplasty With Asymptomatic Bacteriuria? Seeding Risk With/Without Treatment

José Cordero-Ampuero MD, PhD, Enrique González-Fernández MD, David Martínez-Vélez MD, Jaime Esteban MD, PhD

In patients with asymptomatic bacteriuria undergoing hip arthroplasty, the risk of prosthetic joint infection (PJI) and appropriateness of specific antibiotics are unclear.

Femoroacetabular Impingement Predisposes to Traumatic Posterior Hip Dislocation

Simon D. Steppacher MD, Christoph E. Albers MD, Klaus A. Siebenrock MD, Moritz Tannast MD, Reinhold Ganz MD

Traumatic posterior hip dislocation in adults is generally understood to be the result of a high-energy trauma. Aside from reduced femoral antetorsion, morphologic risk factors for dislocation are unknown. We previously noticed that some hips with traumatic posterior dislocations had evidence of morphologic features of femoroacetabular impingement (FAI), therefore, we sought to evaluate that possibility more formally.

Acetabular Liner With Focal Constraint to Prevent Dislocation After THA

Jacob T. Munro MBChB, Mihai H. Vioreanu MD, MCh, Bassam A. Masri MD, Clive P. Duncan MD, MSc

Dislocation continues to commonly cause failure after primary and revision total hip arthroplasty (THA). Fully constrained liners intended to prevent dislocation are nonetheless associated with a substantial incidence of failure by redislocation, mechanical failure, aseptic loosening, or a combination. Constrained liners with cutouts of the elevated rims can theoretically increase range of movement and therefore decrease the risk dislocation, but it is unclear if they do so in practice and whether they are associated with early wear or loosening.

Ceramic-on-ceramic Bearing Decreases the Cumulative Long-term Risk of Dislocation

Philippe Hernigou MD, Yasuhiro Homma MD, Olivier Pidet MD, Isaac Guissou MD, Jacques Hernigou MD

It is unclear whether late THA dislocations are related to mechanical impingement or to a biological mechanism that decreases the stability provided by the capsule (eg, inflammation secondary to osteolysis). It is also unknown if alumina-on-alumina bearing couples decrease the risk of late dislocation as a result of the absence of wear and osteolysis.

Is a Positive Femoroacetabular Impingement Test a Common Finding in Healthy Young Adults?

Lene B. Laborie MD, Trude G. Lehmann MD, Ingvild Ø. Engesæter MD, Lars B. Engesæter MD, PhD, Karen Rosendahl MD, PhD

Femoroacetabular impingement (FAI) is an incompletely understood clinical concept that implies pathomechanical changes in the hip as a cause for hip-related pain in young adults. While a positive anterior impingement test is suggestive of FAI, its association with clinical and radiographic findings remain unconfirmed in healthy young adults.

Readmission Rates in the State of Florida: A Reflection of Quality?

Carlos J. Lavernia MD, Jesus M. Villa MD, David A. Iacobelli MD

High readmission rates are viewed by the Centers for Medicare & Medicaid Services as a quality of care determinant but it is unclear whether readmission rates per se reflect quality and the drivers of readmissions after hip arthroplasty remain unclear.

Anterior Inferior Iliac Spine Morphology Correlates With Hip Range of Motion: A Classification System and Dynamic Model

Iftach Hetsroni MD, Lazaros Poultsides MD, Asheesh Bedi MD, Christopher M. Larson MD, Bryan T. Kelly MD

The anterior inferior iliac spine (AIIS) contributes to hip dysfunction in patients with symptomatic impingement and resection of a prominent AIIS can reportedly improve function. However, the variability of the AIIS morphology and whether that variability correlates with risk of associated symptomatic impingement are unclear.

Increase of Cortical Bone After a Cementless Long Stem in Periprosthetic Fractures

Eduardo García-Rey MD, PhD, EBOT, Eduardo García-Cimbrelo MD, PhD, Ana Cruz-Pardos MD, PhD, Rosário Madero MS

Healing and functional recovery have been reported using an extensively porous-coated stem in Vancouver B2 and B3 periprosthetic fractures; however, loss of cortical bone has been observed when using these stems in revision surgery for aseptic loosening. However, it is unclear whether this bone loss influences subsequent loosening.

Validity and Reliability of the Paprosky Acetabular Defect Classification

Raymond Yu BM, BS, HB.MedSc, M.SurgSci, Jochen G. Hofstaetter MD, Thomas Sullivan BMa&CompSc(Hons), Kerry Costi BA, Donald W. Howie BM, BS, PhD, FRACS, Lucian B. Solomon MD, PhD, FRACS

The Paprosky acetabular defect classification is widely used but has not been appropriately validated. Reliability of the Paprosky system has not been evaluated in combination with standardized techniques of measurement and scoring.

What Are Predictors for Patients’ Quality of Life After Pelvic Ring Fractures?

Joerg H. Holstein MD, Antonius Pizanis MD, Daniel Köhler MD, Tim Pohlemann MD

Data from literature on predictors for patients’ quality of life after pelvic ring fractures are conflicting and based on small study populations.