Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 721 articles


Are Younger Patients Undergoing THA Appropriately Characterized as Active?

James A. Keeney MD, Ryan M. Nunley MD, Geneva R. Baca BA, John C. Clohisy MD

Surgeons perform THA to address a variety of conditions in younger patients, including osteoarthritis (OA), osteonecrosis, inflammatory arthritis, and congenital deformities. Younger patients aged 50 years or younger have been characterized as active in the literature, but a direct relationship between age and activity level has not been well substantiated. Younger patients with OA may engage in higher activity levels; however, associated medical conditions in patients with other surgical indications may not support a generalization that age is a surrogate for activity level. We recently evaluated these issues in younger patients undergoing total knee arthroplasty (TKA) and noted that the majority would not be considered active. Given this observation, we considered whether younger patients undergoing THA are characterized by high activity levels, which is relevant to understanding the long-term risk of wear-related failures.

Diabetes Confers Little to No Increased Risk of Postoperative Complications After Hip Fracture Surgery in Geriatric Patients

Nicholas S. Golinvaux BA, Daniel D. Bohl MPH, Bryce A. Basques BS, Michael R. Baumgaertner MD, Jonathan N. Grauer MD

Diabetes and hip fractures in geriatric patients are common, and many elderly patients have a history of diabetes. However, the influence of diabetes on surgical complications may vary based on which particular type of diabetes a patient has. To our knowledge, no prior study has stratified patients with diabetes to compare patients with noninsulin-dependent and insulin-dependent diabetes regarding rates of postoperative adverse events, length of hospitalization, and readmission rate after surgical stabilization of hip fractures in geriatric patients.

Does Fluoroscopy Improve Acetabular Component Placement in Total Hip Arthroplasty?

Brandon S. Beamer MD, Jordan H. Morgan BS, Christopher Barr BS, Michael J. Weaver MD, Mark S. Vrahas MD

The success of THA largely depends on correct placement of the individual components. Traditionally, these have been placed freehand using anatomic landmarks, but studies have shown poor accuracy with this method.

Hip Arthroscopy in the Setting of Hip Osteoarthritis: Systematic Review of Outcomes and Progression to Hip Arthroplasty

Joanne L. Kemp PT, PhD, David MacDonald PT, PhD, Natalie J. Collins PT, PhD, Anna L. Hatton PT, PhD, Kay M. Crossley PT, PhD

Hip arthroscopy is now commonly used to treat hip pain and pathology, including osteoarthritis (OA). Despite this, little is known about the effect of hip arthroscopy on outcomes of pain and function and progression to total hip arthroplasty (THA) in hip OA.

Which Radiographic Hip Parameters Do Not Have to Be Corrected for Pelvic Rotation and Tilt?

Moritz Tannast MD, Stefan Fritsch MD, Guoyan Zheng PhD, Klaus A. Siebenrock MD, Simon D. Steppacher MD

Acetabular anatomy on AP pelvic radiographs depends on pelvic orientation during radiograph acquisition. However, not all parameters may change to a clinically relevant degree with differences in pelvic orientation. This issue may influence the diagnosis of acetabular pathologies and planning of corrective acetabular surgery (reorientation or rim trimming). However, to this point, it has not been well characterized.

Subject-specific Patterns of Femur-labrum Contact are Complex and Vary in Asymptomatic Hips and Hips With Femoroacetabular Impingement

Ashley L. Kapron PhD, Stephen K. Aoki MD, Christopher L. Peters MD, Andrew E. Anderson PhD

Femoroacetabular impingement (FAI) may constrain hip articulation and cause chondrolabral damage, but to our knowledge, in vivo articulation and femur-labrum contact patterns have not been quantified.

Do Retrieval Analysis and Blood Metal Measurements Contribute to Our Understanding of Adverse Local Tissue Reactions?

Patricia A. Campbell PhD, Michael S. Kung BA, Andrew R. Hsu MD, Joshua J. Jacobs MD

Metal-on-metal (MoM) total hip arthroplasties (THAs) and the head-neck and neck-body junctions in modular THA are associated with a variety of local and systemic reactions to their related wear and corrosion products. Although laboratory testing is available, the relationship between laboratory values—including serum metal ion levels—and adverse local tissue reactions (ALTRs) remains controversial and incompletely characterized.

Do Patients With Insulin-dependent and Noninsulin-dependent Diabetes Have Different Risks for Complications After Arthroplasty?

Francis Lovecchio BA, Matthew Beal MD, Mary Kwasny ScD, David Manning MD

Patients with diabetes are known to be at greater risk for complications after arthroplasty than are patients without diabetes. However, we do not know whether there are important differences in the risk of perioperative complications between patients with diabetes who are insulin-dependent (Type 1 or 2) and those who are not insulin-dependent.

Are Harris Hip Scores and Gait Mechanics Related Before and After THA?

Omar A. Behery MPH, Kharma C. Foucher MD, PhD

Discordance between subjective and objective functional measures hinders the development of new ways to improve THA outcomes.

Systematic Review of Literature of Cemented Femoral Components: What Is the Durability at Minimum 20 Years Followup?

Nicholas A. Bedard MD, John J. Callaghan MD, Michael D. Stefl MD, Steve S. Liu MD

Cemented femoral total hip arthroplasty may be one of the most successful surgical interventions of all time. However, although results are very encouraging over the early to mid-term followup, relatively few studies have analyzed the durability of these implants beyond 20 years followup. To evaluate the performance of contemporary implants, it is important to understand how previous implants perform at 20 or more years of followup; one way to do this is to aggregate the available data in the form of a systematic review.