Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 719 articles


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.

Functional and Anatomic Orientation of the Femoral Head

David Wright BSc, Cari Whyne PhD, Michael Hardisty MSc, Hans J. Kreder MD, MPH, FRCS, Omri Lubovsky MD

Femoral neck geometry directly affects load transmission through the hip. Orientations may be described anatomically or using functional definitions that consider load transmission.

Factors and Consequences of Waiting Times for Total Hip Arthroplasty

Itziar Vergara MD, MPH, Amaia Bilbao MSc, Nerea Gonzalez PhD, Antonio Escobar MD, PhD, José M. Quintana MD, PhD

Various priority criteria for waiting lists for THA have been proposed. These criteria, however, are not typically included in clinical practice, resulting in unclear management procedures. Further, the clinical effects of waiting times on subsequent pain control or function are unclear.

Pelvic Deformity Influences Acetabular Version and Coverage in Hip Dysplasia

Masanori Fujii MD, Yasuharu Nakashima MD, Taishi Sato MD, Mio Akiyama MD, Yukihide Iwamoto MD

Although a wide variety of acetabular deformities in developmental dysplasia of the hip (DDH) have been reported, the morphologic features of the entire pelvis in DDH are not well characterized and their correlation with acetabular deformity is unknown.

Does Arthroscopic FAI Correction Improve Function with Radiographic Arthritis?

Christopher M. Larson MD, M. Russell Giveans PhD, Mehul Taylor MD

Previous studies reporting the impact of osteoarthritis (OA) on pain and function after hip arthroscopy largely predate resection of femoroacetabular impingement (FAI).