Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 723 articles


Aspirin Decreases Heterotopic Ossification After Hip Resurfacing

Ryan M. Nunley MD, Jinjun Zhu MD, PhD, John C. Clohisy MD, Robert L. Barrack MD

Heterotopic ossification (HO) is a concern for patients undergoing hip surgery, especially surface replacement arthroplasty (SRA) who tend to be younger, more active, and anticipate good motion. It is unclear, however, whether HO occurs more frequently after SRA than traditional total hip arthroplasty (THA) and whether aspirin influences the risk.

Ethnic and Racial Factors Influencing Well-being, Perceived Pain, and Physical Function After Primary Total Joint Arthroplasty

Carlos J. Lavernia MD, Jose C. Alcerro MD, Juan S. Contreras MD, Mark D. Rossi PhD

Studies suggest, even when controlling for disease severity, socioeconomic status, education, and access to care, racial and ethnic minorities receive lower-quality health care and have worse perceived pain and function before and after total joint arthroplasty.

Optimizing Screening for Osteoporosis in Patients With Fragility Hip Fracture

Archana Roy MD, Michael G. Heckman MSc, Mary I. O’Connor MD

Osteoporosis, the underlying cause of most hip fractures, is underdiagnosed and undertreated. The 2008 Joint Commission reportshowed only an average of 20% of patients with low-impact fracture are ever tested or treated for osteoporosis. We developed an integrated model utilizing hospitalists and orthopaedic surgeons to improve care of osteoporosis in patients with hip fracture.

Pelvic Positioning Creates Error in CT Acetabular Measurements

Harold J. P. Bosse MD, Duron Lee MD, Eric R. Henderson MD, Debra A. Sala MS, PT, David S. Feldman MD

CT allows for accurate measurement of acetabular orientation and shape, but malpositioning of the pelvis may lead to measurement variance.

Aseptic Loosening of Total Hip Arthroplasty: Infection Always Should be Ruled Out

Javad Parvizi MD, FRCS, Dong-Hun Suh MD, S. Mehdi Jafari MD, Adam Mullan BS, James J. Purtill MD

It is believed that some cases of aseptic failure of THA may be attributable to occult infections. However, it is unclear whether preoperative erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) are more likely elevated in these patients than those without overt infection.

Frequency, Risk Factors, and Prognosis of Prolonged Delirium in Elderly Patients After Hip Fracture Surgery

Kyung-Hag Lee MD, Yong-Chan Ha MD, Young-Kyun Lee MD, Hyun Kang MD, Kyung-Hoi Koo MD

Delirium in elderly patients after hip fracture surgery is believed to be a transient event, although it frequently lasts for more than 4 weeks.

Ischial Spine Sign Reveals Acetabular Retroversion in Legg-Calvé-Perthes Disease

A. Noelle Larson MD, Anthony A. Stans MD, Rafael J. Sierra MD

Acetabular retroversion has been identified in mature patients with sequelae of Legg-Calvé-Perthes (LCP) disease. Whether this is a contributing etiologic factor that leads to the disease process or result of the head deformity is not known. The prominence of the ischial spine (PRIS) sign, which reflects retroversion, can be observed before ossification of the anterior and posterior walls in a skeletally immature patient and could help determine whether the retroverted acetabulum is present before or after head involvement in patients with LCP disease.

High Revision Rate at 5 Years after Hip Resurfacing with the Durom Implant

Florian D. Naal MD, Ronny Pilz MD, Urs Munzinger MD, Otmar Hersche MD, Michael Leunig MD

There is growing evidence that different resurfacing implants are associated with variable survival and revision rates. A registry analysis indicated the Durom resurfacing implant had high revision rates at 5 years, whereas three original studies reported low revision rates at short-term followups. Thus, the revision rates appear controversial.

A Squeaky Reputation: The Problem May Be Design-dependent

Javad Parvizi MD, FRCS, Bahar Adeli BA, Justin C. Wong MD, Camilo Restrepo MD, Richard H. Rothman MD, PhD

Squeaking is reportedly a complication in patients having ceramic-on-ceramic total hip implants. The etiology remains unknown and multifactorial with recent studies suggesting a relationship between the audible squeak and implant design. When we evaluated our ceramic-on-ceramic cohort, we noticed squeaking primarily in patients receiving an acetabular system designed with an elevated titanium rim.

Effects of Delayed Hip Fracture Surgery on Mortality and Morbidity in Elderly Patients

Pedro Rodriguez-Fernandez MD, PhD, Dolores Adarraga-Cansino MD, PhD, Pedro Carpintero MD, PhD

The effects of delaying hip fracture surgery on mortality and morbidity in elderly patients are not completely understood.