Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Knee 448 articles

Articles

Polyethylene Damage Increases With Varus Implant Alignment in Posterior-stabilized and Constrained Condylar Knee Arthroplasty

Zhichang Li MD, Christina I. Esposito PhD, Chelsea N. Koch BS, Yuo-yu Lee MS, Douglas E. Padgett MD, Timothy M. Wright PhD

Implant malalignment in primary TKA has been reported to increase stresses placed on the bearing surfaces of implant components. We used a longitudinally maintained registry coupled with an implant retrieval program to consider whether preoperative, postoperative, or prerevision malalignment was associated with increased risk of revision surgery after TKA.

What Is the Diagnostic Accuracy of the Duck Walk Test in Detecting Meniscal Tears?

A. Post BSc, J. C. A. Noorduyn MSc, V. A. B. Scholtes PhD, E. L. A. R. Mutsaerts MD, PhD

Clinical weightbearing provocation tests, like the duck walk test, may be of value in diagnosing or screening for medial meniscal tears. However, evidence of the diagnostic accuracy of the duck walk test is lacking.

Are Barbed Sutures Associated With 90-day Reoperation Rates After Primary TKA?

Daniel C. Austin MD, Benjamin J. Keeney PhD, Brendan E. Dempsey MS, Karl M. Koenig MD, MS

Studies have suggested that barbed sutures for wound closure in TKAs are an acceptable alternative to standard methods. However others have observed a higher risk of wound-related complications with barbed sutures.

Brain Activity Changes in Somatosensory and Emotion-Related Areas With Medial Patellofemoral Ligament Deficiency

Masaru Kadowaki MD, Taku Tadenuma MD, Nobuyuki Kumahashi MD, PhD, Yuji Uchio MD, PhD

Patellar instability with medial patellofemoral ligament (MPFL) deficiency is a common sports injury among young people. Although nonoperative and surgical treatment can provide stability of the patella, patients often have anxiety related to the knee. We speculate that neural dysfunction may be related to anxiety in these patients; however, the mechanism in the brain that generates this anxiety remains unknown.

Are TKAs Performed in High-volume Hospitals Less Likely to Undergo Revision Than TKAs Performed in Low-volume Hospitals?

Elke Jeschke PhD, Mustafa Citak MD, PhD, Christian Günster, Andreas Matthias Halder MD, Karl-Dieter Heller MD, Jürgen Malzahn MD, Fritz Uwe Niethard MD, Peter Schräder MD, Josef Zacher MD, Thorsten Gehrke MD

High-volume hospitals have achieved better outcomes for THAs and unicompartmental knee arthroplasties (UKAs). However, few studies have analyzed implant survival after primary TKA in high-volume centers.

Younger Patients and Men Achieve Higher Outcome Scores Than Older Patients and Women After Anterior Cruciate Ligament Reconstruction

Kate E. Webster PhD, Julian A. Feller FRACS

There is some evidence that functional performance and validated outcome scores differ according to the gender, age, and sport participation status of a patient after anterior cruciate ligament (ACL) reconstruction. However, the impact of these three factors, and interaction among them, has not been studied across a large relatively homogeneous group of patients to better elucidate their impact.

Risk of Revision Was Not Reduced by a Double-bundle ACL Reconstruction Technique: Results From the Scandinavian Registers

Cathrine Aga MD, Jüri-Tomas Kartus MD, PhD, Martin Lind MD, PhD, Stein Håkon Låstad Lygre PhD, Lars-Petter Granan MD, PhD, Lars Engebretsen MD, PhD

Double-bundle anterior cruciate ligament (ACL) reconstruction has demonstrated improved biomechanical properties and moderately better objective outcomes compared with single-bundle reconstructions. This could make an impact on the rerupture rate and reduce the risk of revisions in patients undergoing double-bundle ACL reconstruction compared with patients reconstructed with a traditional single-bundle technique. The National Knee Ligament Registers in Scandinavia provide information that can be used to evaluate the revision outcome after ACL reconstructions.

Venous Thromboembolism Prophylaxis After TKA: Aspirin, Warfarin, Enoxaparin, or Factor Xa Inhibitors?

Abiram Bala MD, James I. Huddleston MD, Stuart B. Goodman MD, PhD, William J. Maloney MD, Derek F. Amanatullah MD, PhD

There is considerable debate regarding the ideal agent for venous thromboembolism (VTE) prophylaxis after TKA. Numerous studies and meta-analyses have yet to provide a clear answer and often omit one or more of the commonly used agents such as aspirin, warfarin, enoxaparin, and factor Xa inhibitors.

What Is the Mid-term Failure Rate of Revision ACL Reconstruction? A Systematic Review

Alberto Grassi MD, Christopher Kim MD, Giulio Maria Marcheggiani Muccioli MD, Stefano Zaffagnini MD, Annunziato Amendola MD

When anterior cruciate ligament (ACL) reconstruction fails, a revision procedure may be performed to improve knee function, correct instability, and allow return to activities. The results of revision ACL reconstruction have been reported to produce good but inferior patient-reported and objective outcomes compared with primary ACL reconstruction, but the degree to which this is the case varies widely among published studies and may be influenced by heterogeneity of patients, techniques, and endpoints assessed. For those reasons, a systematic review may provide important insights.

High Interspecimen Variability in Engagement of the Anterolateral Ligament: An In Vitro Cadaveric Study

Robert N. Kent BSE, James F. Boorman-Padgett BS, Ran Thein MD, Jelle P. List MD, Danyal H. Nawabi MD, Thomas L. Wickiewicz MD, Carl W. Imhauser PhD, Andrew D. Pearle MD

Anterolateral ligament (ALL) reconstruction as an adjunct to anterior cruciate ligament (ACL) reconstruction remains a subject of clinical debate. This uncertainty may be driven in part by a lack of knowledge regarding where, within the range of knee motion, the ALL begins to carry force (engages).