Arthroplasty News and Research

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Arthroplasty is a orthopaedic surgery procedure, in which the arthritic or dysfunctional joint surface is replaced with something better or by remodeling or realigning the joint by osteotomy or some other procedure. Previously, a popular form of arthroplasty was interpositional arthroplasty with interposition of some other tissue like skin, muscle or tendon to keep inflammatory surfaces apart or excisional arthroplasty in which the joint surface and bone was removed leaving scar tissue to fill in the gap. Other forms of arthroplasty include resection(al) arthroplasty, resurfacing arthroplasty, mold arthroplasty, cup arthroplasty, silicone replacement arthroplasty, etc. Osteotomy to restore or modify joint congruity is also an arthroplasty.

Redefining the acetabular safe zone to help avoid the risk of dislocation after hip replacement surgery

A study using artificial intelligence to analyze radiographs from thousands of patients after hip replacement surgery redefines the acetabular "safe zone" to help avoid the risk of dislocation, reports The Journal of Bone & Joint Surgery. The journal is published in the Lippincott portfolio in partnership with Wolters Kluwer.

28 Dec 2021

Minimally invasive ablation procedure offers long-term relief after knee replacement surgery

A minimally invasive ablation procedure offers long-term relief for patients who experience chronic and debilitating pain after knee replacement surgery, according to a study being presented next week at the annual meeting of the Radiological Society of North America.

24 Nov 2021

Robotic-assisted knee replacement linked to lower odds of complications after surgery

A study by Dr. Geoffrey Westrich and colleagues at Hospital for Special Surgery (HSS) found knee replacement performed with robotic assistance led to a lower complication rate in the first three months following surgery.

12 Nov 2021

Practical solutions in shoulder arthroplasty for patients with glenoid bone loss

Today, at the American Academy of Orthopaedic Surgeons (AAOS) 2021 annual meeting, Hospital for Special Surgery (HSS) sports medicine surgeon David M. Dines, MD, participated in an instructional case lecture on practical solutions in shoulder arthroplasty for patients with substantial shoulder socket bone loss known as glenoid bone deficiency.

4 Sep 2021

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

UT Southwestern orthopedic specialist performs first AR shoulder replacement surgery in Texas

The preoperative shoulder CT scan is entered into special software, which then generates a 3D model of the patient's anatomy. Physicians use the model to examine the patient's anatomy, plan incision points, mark the points for the anchor pins, and adjust the prosthetic device.

28 Aug 2021

Major study set to compare the use of surgical robots and standard methods in knee replacement

A major national study will pitch human skill against machine precision as it compares the benefits of knee replacement surgery performed using a robot to a surgeon using traditional methods.

29 Jun 2021

Oral TXA is equally efficacious at preventing blood loss in orthopedic surgery, interim study suggests

Interim results of a study conducted by researchers at Hospital for Special Surgery (HSS) suggest that oral tranexamic acid (TXA) is non-inferior to intravenous (IV) TXA in preventing blood loss in total knee and total hip replacement surgery.

14 May 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

Researchers find the "true" rate of dislocation following total hip replacement

The cumulative incidence of hip dislocation following total hip replacement is about 50 percent higher than suggested by simple analysis of hospital data, reports a study in The Journal of Bone & Joint Surgery. The journal is published in the Lippincott portfolio in partnership with Wolters Kluwer.

21 Dec 2020

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

Hip replacement surgeries at safety net hospitals linked to higher complications, mortality

Total hip arthroplasty (THA) – or hip replacement – is one of the most widely performed surgical procedures in the United States. It is used to manage severe arthritis and can greatly improve quality of life for patients suffering from this debilitating disease.

12 Aug 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

Study shows higher hip replacement operations can yield better results

The higher the proportion of primary hip replacement operations a surgeon performs annually, the better the results are, a thesis at the University of Gothenburg shows.

14 Jul 2020