Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 719 articles


What Is the Impact of Center Variability in a Multicenter International Prospective Observational Study on Developmental Dysplasia of the Hip?

Kishore Mulpuri MBBS, MS(Ortho) MHSc(Epi), Emily K. Schaeffer PhD, Simon P. Kelley MBChB, FRCS (Tr and Ortho), Pablo Castañeda MD, Nicholas M. P. Clarke ChM, DM, FRCS, FRCS Ed, Jose A. Herrera-Soto MD, Vidyadhar Upasani MD, Unni G. Narayanan MBBS, MSc, FRCSC, Charles T. Price MD, FAAP

Little information exists concerning the variability of presentation and differences in treatment methods for developmental dysplasia of the hip (DDH) in children < 18 months. The inherent advantages of prospective multicenter studies are well documented, but data from different centers may differ in terms of important variables such as patient demographics, diagnoses, and treatment or management decisions. The purpose of this study was to determine whether there is a difference in baseline data among the nine centers in five countries affiliated with the International Hip Dysplasia Institute to establish the need to consider the center as a key variable in multicenter studies.

How Often Does Femoroacetabular Impingement Occur After an Innominate Osteotomy for Acetabular Dysplasia?

Pablo Castañeda MD, Carlos Vidal-Ruiz MD, Alfonso Méndez MD, Diego Pérez Salazar MD, Armando Torres MD, MSc, FACS

Femoroacetabular impingement is increasingly recognized as a cause of hip pain but its incidence after an innominate osteotomy for the correction of acetabular dysplasia has not been determined. This information would be essential for the orthopaedic surgeon because it has the potential to produce a poor outcome in the long term when trying to balance acetabular instability and overcorrection.

Validation of the HOOS, JR: A Short-form Hip Replacement Survey

Stephen Lyman PhD, Yuo-Yu Lee MS, Patricia D. Franklin MD, MBA, MPH, Wenjun Li PhD, David J. Mayman MD, Douglas E. Padgett MD

Patient-reported outcome measures (PROMs) are increasingly in demand for outcomes evaluation by hospitals, administrators, and policymakers. However, assessing total hip arthroplasty (THA) through such instruments is challenging because most existing measures of hip health are lengthy and/or proprietary.

Inaccuracies in the Use of Magnification Markers in Digital Hip Radiographs

Michael J. Archibeck MD, Tamara Cummins RT, Krishna R. Tripuraneni MD, Joshua T. Carothers MD, Cristina Murray-Krezan MS, Mohammad Hattab PhD, Richard E. White MD

With the ubiquity of digital radiographs, the use of digital templating for arthroplasty has become commonplace. Although improved accuracy with digital radiographs and magnification markers is assumed, it has not been shown.

Ceramic Heads Decrease Metal Release Caused by Head-taper Fretting and Corrosion

Sevi B. Kocagoz BS, Richard J. Underwood PhD, Daniel W. MacDonald MS, Jeremy L. Gilbert PhD, Steven M. Kurtz PhD

Metal release resulting from taper fretting and corrosion is a clinical concern, because wear and corrosion products may stimulate adverse local tissue reactions. Unimodular hip arthroplasties have a conical taper between the femoral head (head bore taper) and the femoral stem (stem cone taper). The use of ceramic heads has been suggested as a way of reducing the generation of wear and corrosion products from the head bore/stem cone taper junction. A previous semiquantitative study found that ceramic heads had less visual evidence of fretting-corrosion damage compared with CoCr heads; but, to our knowledge, no studies have quantified the volumetric material loss from the head bore and stem cone tapers of a matched cohort of ceramic and metal heads.

The Radiographic Union Score for Hip (RUSH) Identifies Radiographic Nonunion of Femoral Neck Fractures

Tym Frank MD, Georg Osterhoff MD, Sheila Sprague PhD, Alisha Garibaldi MSc, Mohit Bhandari MD, PhD, Gerard P. Slobogean MD, MPH

The Radiographic Union Score for Hip (RUSH) is a previously validated outcome instrument designed to improve intra- and interobserver reliability when describing the radiographic healing of femoral neck fractures. The ability to identify fractures that have not healed is important for defining nonunion in clinical trials and predicting patients who will likely require additional surgery to promote fracture healing. We sought to investigate the utility of the RUSH score to define femoral neck fracture nonunion.

Does Teriparatide Improve Femoral Neck Fracture Healing: Results From A Randomized Placebo-controlled Trial

Mohit Bhandari MD, PhD, Ling Jin MD, Kyoungah See PhD, Russel Burge PhD, Nigel Gilchrist MBChB, FRACP, Richard Witvrouw MD, Kelly D. Krohn MD, Margaret R. Warner PhD, DVM, Qasim I. Ahmad MD, Bruce Mitlak MD

There is a medical need for therapies that improve hip fracture healing. Teriparatide (Forteo/ Forsteo, recombinant human parathyroid hormone) is a bone anabolic drug that is approved for treatment of osteoporosis and glucocorticoid-induced osteoporosis in men and postmenopausal women at high fracture risk. Preclinical and preliminary clinical data also suggest that teriparatide may enhance bone healing.

What Risk Factors and Characteristics Are Associated With Late-presenting Dislocations of the Hip in Infants?

Kishore Mulpuri MBBS, MS(Ortho), MHSc(Epi), Emily K. Schaeffer PhD, Janice Andrade BSW, Wudbhav N. Sankar MD, Nicole Williams BMedSc, FRACS(Ortho), Travis H. Matheney MD, MLA, Scott J. Mubarak MD, Peter J. Cundy MBBS, FRACS, Charles T. Price MD, FAAP

Most infants with developmental dysplasia of the hip (DDH) are diagnosed within the first 3 months of life. However, late-presenting DDH (defined as a diagnosis after 3 months of age) does occur and often results in more complex treatment and increased long-term complications. Specific risk factors involved in late-presenting DDH are poorly understood, and clearly defining an associated set of factors will aid in screening, detection, and prevention of this condition.

Does Surgical Approach Affect Patient-reported Function After Primary THA?

Sara C. Graves MD, MS, Benjamin M. Dropkin MD, Benjamin J. Keeney PhD, Jon D. Lurie MD, MS, Ivan M. Tomek MD

Total hip arthroplasty (THA) relieves pain and improves physical function in patients with hip osteoarthritis, but requires a year or more for full postoperative recovery. Proponents of intermuscular surgical approaches believe that the direct-anterior approach may restore physical function more quickly than transgluteal approaches, perhaps because of diminished muscle trauma. To evaluate this, we compared patient-reported physical function and other outcome metrics during the first year after surgery between groups of patients who underwent primary THA either through the direct-anterior approach or posterior approach.

Is Local Infiltration Analgesia Superior to Peripheral Nerve Blockade for Pain Management After THA: A Network Meta-analysis

José H. Jiménez-Almonte MD, Cody C. Wyles BS, Saranya P. Wyles BS, German A. Norambuena-Morales MD, Pedro J. Báez BS, Mohammad H. Murad MD, MPH, Rafael J. Sierra MD

Local infiltration analgesia and peripheral nerve blocks are common methods for pain management in patients after THA but direct head-to-head, randomized controlled trials (RCTs) have not been performed. A network meta-analysis allows indirect comparison of individual treatments relative to a common comparator; in this case placebo (or no intervention), epidural analgesia, and intrathecal morphine, yielding an estimate of comparative efficacy.