Knee Arthroplasty News and Research

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Knee arthroplasty or knee replacement surgery has developed to its present advanced stage over the last few decades. This is mainly due to technical advances and better understanding of knee pathophysiology and functions.

Study could help physicians better manage patients experiencing debilitating stiffness after revision TKA

A new study by researchers at Hospital for Special Surgery in New York City presented today at the American Academy of Orthopaedic Surgeons 2021 annual meeting could help physicians better manage patients who experience debilitating stiffness after they undergo knee replacement surgery.

2 Sep 2021

Study: Duloxetine may reduce cumulative opioid use after total knee arthroplasty

In a study conducted by researchers at Hospital for Special Surgery (HSS), cumulative opioid use was reduced by 30% in a patient group that received duloxetine after total knee arthroplasty (TKA) compared with patients who received placebo.

13 May 2021

Vitamin D may play a role in the degree of pain after knee replacement in postmenopausal women

Vitamin D is a critical part of a healthy diet. Among other benefits, it has been shown to protect against bone disease and maintain soft tissue health.

5 May 2021

Study: Patients with chronic kidney disease have high risk of acute kidney injury

Acute kidney injury (AKI) occurred in nearly 20 percent of patients who underwent surgery with implantation of antibiotic-loaded "spacers" and intravenous (IV) antibiotics for the treatment of deep infections after total knee arthroplasty, reports a study in The Journal of Bone & Joint Surgery.

30 Mar 2021

Study examines the variability in opioid prescriptions for common orthopedic procedures

A new review article published in the March issue of the Journal of the American Academy of Orthopaedic Surgeons (JAAOS) examines the variability that exists in opioid prescribing patterns across the United States for many common orthopedic procedures.

4 Mar 2021

Exactech and Bodycad sign exclusive distribution agreement

Exactech announced today the signing of an exclusive distribution agreement with orthopedic manufacturer Bodycad for its Reflex Uni™ knee in the U.S.

25 Nov 2020

Younger knee replacement patients more often have early reoperation and component revision surgery

Knee replacement surgery, also known as total knee arthroplasty (TKA), is increasing among patients 65 and younger.

28 Oct 2020

Study shows overall rate of preoperative stress testing for hip and knee replacements

A new study out of the University of Chicago Medicine shows the overall rate of preoperative stress testing for hip and knee replacements is and has been decreasing consistently since 2006.

1 Oct 2020

Study reports 'unmet need' for joint replacement surgery after Medicaid expansion

States that have expanded Medicaid eligibility under the Affordable Care Act have seen an "early surge in demand" for hip and knee replacement surgery, reports a study in the September 2, 2020 issue of The Journal of Bone & Joint Surgery.

2 Sep 2020

Study may help optimize materials used in implants, enhance their safety

Using highly complex analytical techniques, a group of researchers from Charité - Universitätsmedizin Berlin were able to observe in detail how different metals are released from joint implants and accumulate in the surrounding bone tissue.

11 Aug 2020

Pluripotent cells grown from osteoarthritic knee joint of elderly people

A break through feat of growing pluripotency expressing cells from osteoarthritis affected cartilage tissue of knee joints of elderly has been reported by orthopedicians and cell culture experts led by Dr Shojiro Katoh, President, Edogawa Hospital.

22 Jun 2020

Study compares early postoperative pain after first and second total knee arthroplasty

Acute postoperative pain control after Total Knee Arthroplasty is important as the poorly controlled, persistent pain can cause delay in rehabilitation.

18 May 2020

Virtual PT after knee replacement provides good outcomes with lower costs

A virtual system for in-home physical therapy (PT) provides good outcomes for patients undergoing rehabilitation following total knee arthroplasty (TKA) - with lower costs than traditional in-person PT, reports a study in the January 15, 2020 issue of The Journal of Bone & Joint Surgery.

16 Jan 2020

Study compares unicompartmental knee arthroplasty and total knee arthroplasty

Unicompartmental (or "partial") knee arthroplasty (UKA) is an alternative to total knee arthroplasty (TKA) for some patients with knee osteoarthritis. When UKA fails, conversion to TKA has been thought to be a reliable solution.

25 Nov 2019

Standard methods not adequate to detect prosthetic joint infections in rheumatic disease patients

Standard diagnostic methods are not adequate to identify prosthetic joint infections in patients with rheumatic diseases, according to findings from a new study by researchers from Hospital for Special Surgery in New York City.

12 Nov 2019

Weight loss before arthroplasty improves some outcomes in patients with morbid obesity

In patients with morbid obesity, losing 20 pounds before knee replacement surgery (arthroplasty) leads to fewer hospital days and other outcome improvements, reports a study in the August 21, 2019 issue of The Journal of Bone & Joint Surgery.

22 Aug 2019

Partial knee replacements are more cost effective and could save the NHS millions

New research from a randomized clinical trial published today in The Lancet and funded by the National Institute for Health Research shows that partial knee replacements (PKR) are as good as total knee replacements (TKR), whilst being more cost effective.

18 Jul 2019

First surgery in the U.S. to implant device for knee osteoarthritis

Surgeons at The Ohio State University Wexner Medical Center are the first in the U.S. to implant a new device designed to relieve knee pain and help people with osteoarthritis prevent or delay knee replacements.

3 Jan 2019

FDA approves Medacta’s two new kinematic alignment options for knee replacement surgery

Medacta International, the privately held, family-owned global leader in the design of innovative joint replacement and spinal surgery products, today announced it has received clearance from the U.S. Food and Drug Administration for the GMK® Sphere - Kinematic Alignment instrumentation and surgical technique for total knee replacement.

1 Nov 2018

In-home physical therapy care for knee replacement patients leads to better recovery

A team of physical therapy researchers from the University of Colorado School of Medicine have conducted one of the first full-scale studies to assess the effectiveness of in-home physical therapy care for patients who have had knee replacement surgery.

24 Oct 2018