Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Knee 443 articles


Perioperative Morbidity and Mortality of Same-day Bilateral TKAs: Incidence and Risk Factors

Lazaros Poultsides MD, Stavros Memtsoudis MD, Alejandro Gonzalez Della Valle MD, Ivan De Martino MD, Huong T. Do MA, Michael Alexiades MD, Thomas Sculco MD

Controversy persists regarding the safety of same-day bilateral TKAs, and indications for same-day versus staged bilateral surgery need to be clarified.

Bariatric Orthopaedics: Total Knee Arthroplasty in Super-obese Patients (BMI > 50 kg/m2 ). Survivorship and Complications

Qais Naziri MD, Kimona Issa MD, Arthur L. Malkani MD, Peter M. Bonutti MD, Steven F. Harwin MD, Michael A. Mont MD

Some studies have suggested that patients who are super obese (BMI > 50 kg/m) may have poorer outcomes and more frequent complications when undergoing TKA compared with those who have lower BMI, however, the literature on this is scant.

Translation and Validation of the Dutch New Knee Society Scoring System©

Catherine Van Der Straeten MD, Erik Witvrouw PT, PhD, Tine Willems PT, PhD, Johan Bellemans MD, PhD, Jan Victor MD, PhD

A new version of The Knee Society Knee Scoring System(KSS) has recently been developed. Before this scale can be used in non-English-speaking populations, it has to be translated and validated for a particular population.

The John Insall Award: A Minimum 10-year Outcome Study of Autologous Chondrocyte Implantation

Tom Minas MD, MS, Arvind Keudell MD, Tim Bryant RN, Andreas H. Gomoll MD

Autologous chondrocyte implantation (ACI) has demonstrated good and excellent results in over 75% of patients up to 10 years after surgery. Reports of longer-term outcomes, however, remain limited.

Preliminary Results Suggest Tranexamic Acid is Safe and Effective in Arthroplasty Patients with Severe Comorbidities

Daniel R. Whiting MD, Blake P. Gillette MD, Christopher Duncan MD, Hugh Smith MD, PhD, Mark W. Pagnano MD, Rafael J. Sierra MD

Tranexamic acid (TXA) reduces blood loss and transfusion after total joint arthroplasty (TJA) but concerns remain that patients with severe medical comorbidities might be at increased risk for thromboembolic complications.

Chronic Knee Pain in an 80-year-old Woman

Mark R. Robbin MD, Peter G. Pavlidakey MD, Patrick Getty MD, Hooman Yarmohammadi MD

Knee Moments After Unicompartmental Knee Arthroplasty During Stair Ascent

Yang-Chieh Fu PhD, Kathy J. Simpson PhD, Cathleen Brown PhD, Tracy L. Kinsey MSPH, Ormonde M. Mahoney MD

For unicompartmental knee arthroplasty (UKA), abnormal loading on the tibiofemoral joint could exacerbate knee osteoarthritis or implant wear. Joint moments are an indirect measure of such loading. However, little is known about knee moments of patients with UKA, tempering enthusiasm for its use.

Tourniquet Use During Cementation Only During Total Knee Arthroplasty: A Randomized Trial

Rupesh Tarwala MD, Lawrence D. Dorr MD, Paul K. Gilbert MD, Zhinian Wan MD, William T. Long MD

Total knee arthroplasty with the use of a tourniquet during the entire operation has not been shown to improve the performance of the operation and may increase the risk of complications.

Inter- and Intraobserver Reliability of Two-dimensional CT Scan for Total Knee Arthroplasty Component Malrotation

Beau Konigsberg MD, Ryan Hess MD, Curtis Hartman MD, Lynette Smith MS, Kevin L. Garvin MD

Rotational malalignment of total knee arthroplasty (TKA) has been correlated with patellofemoral maltracking, knee instability, and stiffness. CT is the most accurate method to assess rotational alignment of prosthetic components after TKA, but inter- and intraobserver reliability of CT scans for this use has not been well documented.

Abnormal Axial Rotations in TKA Contribute to Reduced Weightbearing Flexion

Bradley Meccia BS, Richard D. Komistek PhD, Mohamed Mahfouz PhD, Douglas Dennis MD

Previous in vivo fluoroscopy studies have documented that axial rotation for patients having a TKA was significantly less than those having a normal knee. In fact, many subjects having a TKA experience a reverse axial rotation pattern where the femur internally rotates with increasing flexion. However, no previous studies have been conducted to determine if this reverse axial rotation pattern affects TKA performance.