Comparison of Knee Kinematics and Kinetics during Stair Descent in Single- and Multi-Radius Total Knee Arthroplasty.

The Journal of Knee Surgery
Bonnie SumnerMarc C Jacofsky

Abstract

Despite continuing advances, nearly 20% of patients remain dissatisfied with their total knee arthroplasty (TKA) outcomes. Single-radius (SR) and multiradius (MR) TKA designs are two commonly used knee replacement designs based on competing theories of the flexion/extension axis of the knee. Our aim was to characterize stair descent kinematics and kinetics in SR and MR TKA subjects. We hypothesized that 1 year after TKA, patients who received SR TKA will more closely replicate the knee kinematics and kinetics of healthy age-matched controls during stair descent, than will MR TKA patients. SR subjects (n = 12), MR subjects (n = 12), and age-matched controls (n = 12) descended four stairs affixed to force platforms, while 10 infrared cameras tracked markers attached to the body to collect kinematic and kinetic data. Both patient groups had improvements in stair descent kinetics and kinematics at the 1-year postoperative time point. However, SR TKA subjects were indistinguishable statistically from age-matched controls, while MR TKA subjects retained many differences from controls. Similar to previous reports for level walking, the SR knee design performs closer to healthy controls than MR knees during stair descent. This study de...Continue Reading

References

May 1, 1990·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·M P KadabaM E Wootten
Jan 26, 1999·Clinical Orthopaedics and Related Research·D L ChurchillB D Beynnon
May 16, 2000·Journal of the American Geriatrics Society·J K StartzellP R Cavanagh
Jun 18, 2002·The Journal of Arthroplasty·Ormonde M MahoneyThomas P Schmalzried
Mar 25, 2006·The Journal of Physiology·Karen SøgaardJanet L Taylor
Jun 6, 2007·Clinical Orthopaedics and Related Research·Donald EckhoffJoel Bach
Aug 19, 2007·The Journal of Physiology·Roger M Enoka, Jacques Duchateau
May 15, 2008·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Sébastien LustigPhilippe Neyret
Mar 21, 2009·Journal of Aging and Physical Activity·Thorlene EgertonAndrew G Cresswell
Dec 17, 2009·Clinical Orthopaedics and Related Research·Enrique Gómez-BarrenaGloria Bermejo-Fernandez
Sep 8, 2010·Journal of Biomechanical Engineering·Jürgen KoselPieter Erasmus
Apr 21, 2011·Acta Orthopaedica·Sven Ostermeier, Christina Stukenborg-Colsman
Aug 31, 2011·The Journal of Knee Surgery·Michelle S VarnellDavid Jacofsky
Dec 17, 2011·Gait & Posture·Patricia M McAndrew Young, Jonathan B Dingwell
Nov 29, 2012·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·M EzechieliH Windhagen
Sep 26, 2013·Clinical Orthopaedics and Related Research·Javad ParviziRobert L Barrack
Jun 14, 2014·Journal of Physical Therapy Science·Tatsuya Igawa, Junji Katsuhira
Feb 5, 2016·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Ursula K TrinlerRegina Wegener
Aug 29, 2017·The Journal of Arthroplasty·Rajitha GunaratneBrett W Robertson

❮ Previous
Next ❯

Citations

Jul 16, 2019·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Pascal SchützRenate List
Apr 9, 2019·Journal of the Royal Society, Interface·Pascal SchützRenate List

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.