Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 723 articles


What Is Normal Femoral Head/Neck Anatomy? An Analysis of Radial CT Reconstructions in Adolescents

Amir A. Jamali MD, Walter Mak MD, Ping Wang BS, Lynn Tai BS, John P. Meehan MD, Ramit Lamba MBBS, MD

Cam morphology in femoroacetabular impingement has been implicated in the development of osteoarthritis. The alpha angle and femoral head/neck offset are widely used to determine femoral head asphericity. To our knowledge, no study has evaluated the alpha angle circumferentially using three-dimensional imaging in a population of healthy individuals of adolescent age.

Surgical Technique: Gluteus Maximus and Tensor Fascia Lata Transfer for Primary Deficiency of the Abductors of the Hip

Leo A. Whiteside MD

Avulsion of the abductor muscles of the hip may cause severe limp and pain. Limited literature is available on treatment approaches for this problem, and each has shortcomings. This study describes a muscle transfer technique to treat complete irreparable avulsion of the hip abductor muscles and tendons.

High Rate of Infection After Aseptic Revision of Failed Metal-on-Metal Total Hip Arthroplasty

Cody C. Wyles BS, Robert E. Demark MD, Rafael J. Sierra MD, Robert T. Trousdale MD

Evidence suggests some metal-on-metal (MOM) THAs have higher rates of failure and subsequent revision than other bearing surfaces. However, there are few studies demonstrating how these patients fare after revision.

Short-term Wear Evaluation of Thin Acetabular Liners on 36-mm Femoral Heads

Aaron J. Johnson MD, MS, LaQuawn Loving MS, Lizeth Herrera BS, Ronald E. Delanois MD, Aiguo Wang PhD, Michael A. Mont MD

Dislocation remains the leading cause of revision THA. One approach to decreasing prosthetic dislocation risk has been the use of larger femoral head component sizes. The upper limit of head size in metal-on-polyethylene hip arthroplasty has historically been limited because of concerns about increased wear on thin polyethylene components. It is not known to what degree this concern should apply to more wear-resistant polyethylene components.

Do Monoblock Cups Improve Survivorship, Decrease Wear, or Reduce Osteolysis in Uncemented Total Hip Arthroplasty?

Jelle J. Halma MD, H. Charles Vogely MD, PhD, Wouter J. Dhert MD, PhD, Steven M. Gaalen MD, PhD, Arthur Gast MD, PhD

Monoblock acetabular components used in uncemented total hip arthroplasty (THA) have certain mechanical characteristics that potentially reduce acetabular osteolysis and polyethylene wear. However, the degree to which they achieve this goal is not well documented.

Is Intraarticular Pathology Common in Patients With Hip Dysplasia Undergoing Periacetabular Osteotomy?

Benjamin G. Domb MD, Justin M. Lareau MD, Hasan Baydoun MD, Itamar Botser MD, Michael B. Millis MD, Yi-Meng Yen MD, PhD

Periacetabular osteotomy (PAO) enables correction of bony acetabular deficiency in the setting of hip dysplasia. Patients with insufficient acetabular coverage often have intraarticular pathology, but the degree of this pathology has been incompletely characterized. We have used arthroscopy as an adjunct to PAO to further delineate intraarticular pathology in patients with hip dysplasia with mechanical symptoms.

Periprosthetic Fractures Around a Cementless Hydroxyapatite-coated Implant: A New Fracture Pattern Is Described

William N. Capello MD, James A. D’Antonio MD, Marybeth Naughton BS

Periprosthetic fractures can occur both intraoperatively and postoperatively with implantation of cementless tapered stems.

Muscle Strength and Functional Recovery During the First Year After THA

Dana L. Judd PT, DPT, Douglas A. Dennis MD, Abbey C. Thomas PhD, ATC, Pamela Wolfe MS, Michael R. Dayton MD, Jennifer E. Stevens-Lapsley PT, PhD

Patients undergoing total hip arthroplasty (THA) often are satisfied with the decrease in pain and improvement in function they achieve after surgery. Even so, strength and functional performance deficits persist after recovery, but these remain poorly characterized; knowledge about any ongoing strength or functional deficits may allow therapists to design rehabilitation programs to optimize recovery after THA.

Aspirin: An Alternative for Pulmonary Embolism Prophylaxis After Arthroplasty?

Ibrahim J. Raphael MD, Eric H. Tischler BA, Ronald Huang MD, Richard H. Rothman MD, PhD, William J. Hozack MD, Javad Parvizi MD, FRCS

The most effective agent for prophylaxis against venous thromboembolic disease after total joint arthroplasty (TJA) remains unknown. The paucity of literature comparing different methods of pulmonary embolism (PE) prophylaxis and fear of litigation make it difficult for surgeons to abandon the use of aggressive chemical prophylaxis.

Adverse Local Tissue Reaction Associated With a Modular Hip Hemiarthroplasty

Michael R. Whitehouse PhD, MSc, FRCS (Tr & Orth), Makoto Endo MD, PhD, Bassam A. Masri MD, FRCS(C)

The local and systemic effects of wear debris and corrosion products remain a concern in arthroplasty and reaction to corrosion or wear products from modular junctions has been reported in primary and revision total joint arthroplasties. These effects have not been reported previously for unipolar hemiarthroplasties where there is no prosthetic bearing surface to contribute to the phenomenon. This may have implications for clinical surveillance and implant design.