Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Knee 443 articles


Meniscal Injury After Adolescent Anterior Cruciate Ligament Injury: How Long Are Patients at Risk?

Zachary D. Guenther MD, Vimarsha Swami BSc, Sukhvinder S. Dhillon MB, ChB, MRCP, FRCR, Jacob L. Jaremko MD, PhD, FRCPC

Delay of as much as 5 months between ACL injury and surgery is known to be associated with increased risk of a medial meniscal tear, but the risk of additional meniscal tear progression with a longer delay to surgery is unclear.

Intraarticular Analgesia Versus Epidural Plus Femoral Nerve Block After TKA: A Randomized, Double-blind Trial

Keith R. Reinhardt MD, Shivi Duggal BS, MBA, Ben-Paul Umunna BA, Gregory A. Reinhardt MSPT, Denis Nam MD, Michael Alexiades MD, Charles N. Cornell MD

Pain management after TKA remains challenging and the efficacy of continuously infused intraarticular anesthetics remains a controversial topic.

Unicompartmental Knee Arthroplasty Survivorship is Lower Than TKA Survivorship: A 27-year Finnish Registry Study

Tuukka Niinimäki MD, Antti Eskelinen MD, PhD, Keijo Mäkelä MD, PhD, Pasi Ohtonen MSc, Ari-Pekka Puhto MD, Ville Remes MD, PhD

Balancing the relative advantages and disadvantages of unicompartmental knee arthroplasties (UKAs) against those for TKAs can be challenging. Survivorship is one important end point; arthroplasty registers repeatedly report inferior midterm survival rates, but longer-term data are sparse. Comparing survival directly by using arthroplasty register survival reports also may be inadequate because of differences in indications, implant designs, and patient demographics in patients having UKAs and TKAs.

The Effect of Infrapatellar Fat Pad Excision on Complications After Minimally Invasive TKA: A Randomized Controlled Trial

Piya Pinsornsak MD, Kittipon Naratrikun MD, Sukanis Chumchuen MD

The infrapatellar fat pad is one of the structures that obscures exposure in minimally invasive total knee arthroplasty (MIS TKA). Most MIS TKA surgeons (and many surgeons who use other approaches as well) excise the fat pad for better exposure of the knee. There is still controversy about the result of fat pad excision on patella baja, pain, and function.

Coexisting Lumbar Spondylosis in Patients Undergoing TKA: How Common and How Serious?

Chong Bum Chang MD, PhD, Kun Woo Park MD, Yeon Gwi Kang MS, Tae Kyun Kim MD, PhD

Information on the coexistence of lumbar spondylosis and its influence on overall levels of pain and function in patients with advanced knee osteoarthritis (OA) undergoing total knee arthroplasty (TKA) would be valuable for patient consultation and management.

Does an Unloader Brace Reduce Knee Loading in Normally Aligned Knees?

Jay R. Ebert PhD, Karen Hambly PhD, Brendan Joss PhD, Timothy R. Ackland PhD, Cyril J. Donnelly PhD

Unloading knee braces often are used after tibiofemoral articular cartilage repair. However, the experimental basis for their use in patients with normal tibiofemoral alignment such as those undergoing cartilage repair is lacking.

Anteroposterior Translation Does Not Correlate With Knee Flexion After Total Knee Arthroplasty

Yoshinori Ishii MD, Hideo Noguchi MD, Mitsuhiro Takeda MD, Junko Sato MD, Shin-ichi Toyabe MD

Stiffness after a TKA can cause patient dissatisfaction and diminished function, therefore it is important to characterize predictors of ROM after TKA. Studies of AP translation in conscious individuals disagree whether AP translation affects maximum knee flexion angle after implantation of a highly congruent sphere and trough geometry PCL-substituting prosthesis in a TKA.

In Vivo Determination of Cam-Post Engagement in Fixed and Mobile-bearing TKA

Sumesh M. Zingde MS, Filip Leszko PhD, Adrija Sharma PhD, Mohamed R. Mahfouz PhD, Richard D. Komistek PhD, Douglas A. Dennis MD

Kinematics vary, sometimes in important ways, among the different types of total knee arthroplasty (TKA) designs, yet differences between the in vivo mechanisms of cam-post engagement in rotating-platform posterior-stabilized (PS) TKA, bicruciate-stabilized TKA, and fixed-bearing PS TKA designs remain largely uncharacterized.

Causes, Risk Factors, and Trends in Failures After TKA in Korea Over the Past 5 Years: A Multicenter Study

In Jun Koh MD, Woo-Shin Cho MD, Nam Yong Choi MD, Tae Kyun Kim MD

Failure after total knee arthroplasty (TKA) may be related to emerging technologies, surgical techniques, and changing patient demographics. Over the past decade, TKA use in Korea has increased substantially, and demographic trends have diverged from those of Western countries, but failure mechanisms in Korea have not been well studied.

High Level of Residual Symptoms in Young Patients After Total Knee Arthroplasty

Javad Parvizi MD, FRCS, Ryan M. Nunley MD, Keith R. Berend MD, Adolph V. Lombardi MD, Erin L. Ruh MS, John C. Clohisy MD, William G. Hamilton MD, Craig J. Della Valle MD, Robert L. Barrack MD

TKA is among the fastest growing interventions in medicine, with procedure incidence increasing the most in younger patients. Global knee scores have a ceiling effect and do not capture the presence of difficulty or dissatisfaction with specific activities important to patients.