Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Hip 719 articles


A Prospective Randomized Trial of Mini-incision Posterior and Two-incision Total Hip Arthroplasty

Craig J. Della Valle MD, Emily Dittle RN, Mario Moric MS, Scott M. Sporer MD, Asokumar Buvanendran MD

The two-incision approach to THA has been controversial, with some authors reporting its use is associated with a rapid recovery whereas others report no differences in outcomes and a higher risk of perioperative complications secondary to increased surgical complexity.

Does Acetabular Retroversion Affect Range of Motion after Total Hip Arthroplasty?

Stephen J. Incavo MD, Jonathan E. Gold BS, Jesse James F. Exaltacion MD, Matthew T. Thompson MS, Philip C. Noble PhD

Increasingly, acetabular retroversion is recognized in patients undergoing hip arthroplasty. Although prosthetic component positioning is not determined solely by native acetabular anatomy, acetabular retroversion presents a dilemma for component positioning if the surgeon implants the device in the anatomic position.

What Works Best, a Cemented or Cementless Primary Total Hip Arthroplasty?: Minimum 17-year Followup of a Randomized Controlled Trial

Kristoff Corten MD, Robert B. Bourne MD, FRCS(C), Kory D. Charron Dipl.MET, Keegan Au MD, FRCS(C), Cecil H. Rorabeck MD, FRCS(C)

Total hip arthroplasty (THA) has been associated with high survival rates, but debate remains concerning the best fixation mode of THA.

Case Report: Bifid Iliopsoas Tendon Causing Refractory Internal Snapping Hip

Beatrice Shu MD, Marc R. Safran MD

Treatment of painful internal snapping hip (coxa saltans) via arthroscopic lengthening or release of the iliopsoas tendon is becoming preferred over open techniques because of the benefits of minimal dissection, the ability to address concomitant intraarticular disorders, and a low complication rate. Persistent snapping after release is uncommon, especially when performed arthroscopically. Reported causes include incomplete release, intraarticular disorders, and incorrect diagnosis. Anatomic variants are not discussed in the orthopaedic literature.

Reliability and Agreement of Measures Used in Radiographic Evaluation of the Adult Hip

Nicholas H. Mast MD, Franco Impellizzeri PhD, Stephan Keller MD, Michael Leunig MD

Several mechanical derangements reportedly contribute to the development of noninflammatory arthritis of the hip. Diagnosis of these derangements involves the use of specific radiographic measures (eg, alpha angle, lateral center edge angle, cross-over sign). The reliability of some of these measures is not known, whereas others have not been confirmed.

Do Ion Levels In Hip Resurfacing Differ From Metal-on-metal THA at Midterm?

A. Moroni MD, L. Savarino BSc, M. Hoque PhD, M. Cadossi MD, N. Baldini MD

Metal-on-metal Birmingham hip resurfacing (MOM-BHR) is an alternative to metal-on-metal total hip arthroplasty (MOM-THA), especially for young and/or active patients. However, wear resulting in increased serum ion levels is a concern.

Risk of Subsequent Revision after Primary and Revision Total Joint Arthroplasty

Kevin L. Ong PhD, Edmund Lau MS, Jeremy Suggs ScD, Steven M. Kurtz PhD, Michael T. Manley FRSA, PhD

Revision is technically more demanding than primary total joint arthroplasty (TJA) and requires more extensive use of resources. Understanding the relative risk of rerevision and risk factors can help identify patients at high risk who may require closer postsurgical care.

Femoral Morphologic Differences in Subtypes of High Developmental Dislocation of the Hip

Haijun Xu MD, Yixin Zhou MD, PhD, Qing Liu MD, Qiheng Tang MD, Jianhua Yin MD

Previous studies show the shape of the femur in developmental dislocation of the hip (DDH) becomes more abnormal with increasing subluxation. Two kinds of high dislocations associated with DDH have been observed in clinical practice, one with (Type C1) and one without (Type C2) a false acetabulum. The presence or absence of a false acetabulum in high dislocated hips is associated with different loading patterns and could influence the development and shape of the proximal femur.

Modular Necks Improve the Range of Hip Motion in Cases with Excessively Anteverted or Retroverted Femurs in THA

Akinobu Matsushita MD, PhD, Yasuharu Nakashima MD, PhD, Masanori Fujii MD, Taishi Sato MD, Yukihide Iwamoto MD, PhD

Anteversion of an acetabular component often is difficult to ascertain in patients with THA in whom excessively anteverted or retroverted femurs may result in limited ROM or risk of dislocation. Restriction of motion, however, is determined by the combination of version of both components.

Use of Morphometry to Quantify Osteolysis after Total Hip Arthroplasty

Lindsay K. Smith MSc, MCSP, Fiona Cramp PhD, MCSP, Shea Palmer PhD, MCSP, Nikki Coghill PhD, Robert F. Spencer MD, FRCS

Progressive osteolysis threatens the longevity of hip arthroplasties and radiographic review is recommended. Measurement of osteolytic lesions in a clinical setting has not been achieved easily in the past. Other radiologic investigations provide accurate information but cost and risk to the patient prohibit their use in routine review.