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.

Zimmer celebrates significant testing milestone for Vivacit-E Vitamin E Technology

Zimmer Holdings, Inc. is highlighting its Vivacit-E Advanced Bearing Technology with Vitamin E by celebrating a significant testing milestone.

26 Mar 2015

Hip replacement procedure alleviates pain, improves function in young JIA patients

Hip replacement is often performed in patients with juvenile arthritis when their joints have been severely damaged by the disease.

25 Mar 2015

Patients who undergo THR may safely drive by 2 weeks after surgery

Thanks to improved surgical, pain management and rehabilitation procedures, patients who undergo a total hip replacement (THR) may be able to safely drive as early as two weeks following surgery, according to new research presented today at the 2015 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS).

24 Mar 2015

OrthoSensor raises $19 million in Series C Preferred Stock financing

OrthoSensor, Inc., the leader in Sensor-Assisted Surgery, announced today that it has raised $19 million in a private placement of Series C Preferred Stock. Bridger Healthcare, Ltd. and The Tullis Growth Fund, L.P. participated in the round. The proceeds will be used to drive the commercialization of VERASENSE, OrthoSensor's leading product, and expand product development activities.

23 Mar 2015

Amedica Submits 510(k) Application to FDA for Composite Spinal Interbody Spacers with Porous Silicon Nitride Center

Amedica announced today that it has filed a submission for 510(k) clearance of the Valeo C Interbody with CsC Osteo-Conductive Scaffolding (“Valeo CCsC”) with the U.S. Food and Drug Administration (“FDA”) relating to its composite silicon nitride spinal interbody devices.

13 Feb 2015

Readmissions after surgery associated with new postdischarge complications, shows study

In a study that included readmission information from nearly 350 hospitals, readmissions the first 30 days after surgery were associated with new postdischarge complications related to the surgical procedure and not a worsening of any medical conditions the patient already had while hospitalized for surgery, according to a study in the February 3 issue of JAMA.

9 Feb 2015

Total hip replacement: An excellent option for younger patients with juvenile idiopathic arthritis

When you think of hip replacement surgery, you generally envision an older adult with painful osteoarthritis. But the procedure is also used for younger patients with juvenile idiopathic arthritis (JIA) whose joints have been severely damaged by the disease.

18 Nov 2014

New data shows EXPAREL provides effective pain control following total knee arthroplasty

Pacira Pharmaceuticals, Inc. today announced results of an independent, physician-initiated study designed to evaluate the difference in postsurgical pain and opioid consumption between patients who received EXPAREL versus a multi-drug analgesic cocktail for pain management following total knee arthroplasty (TKA).

10 Nov 2014

Comprehensive fitness and nutrition regimens may prevent bone and muscle deterioration

Being physically active may significantly improve musculoskeletal and overall health, and minimize or delay the effects of aging, according to a review of the latest research on senior athletes (ages 65 and up) appearing in the September issue of the Journal of the American Academy of Orthopaedic Surgeons (JAAOS).

30 Aug 2014

Opioid use does not impair reverse shoulder arthroplasty success

Taking opioids prior to reverse shoulder arthroplasty does not hamper patients’ chances of having successful outcomes, researchers have found.

28 Jul 2014

Pre-op assessment could improve post-op pain after arthroplasty

Spanish researchers have developed recommendations on how to assess and manage preoperative pain in patients undergoing total knee or total hip replacement.

30 Jun 2014

Stryker Corporation to acquire all assets of Small Bone Innovations for $375M

Small Bone Innovations, Inc. (SBi) today announced that Stryker Corporation will acquire substantially all the assets of SBi in an all cash transaction for up to $375 million.

From Stryker 30 Jun 2014

Modified classification system finds over one-third of knee replacements as inappropriate

New research reports that more than one third of total knee replacements in the U.S. were classified as "inappropriate" using a patient classification system developed and validated in Spain. The study, published in Arthritis & Rheumatology, a journal of the American College of Rheumatology (ACR), highlights the need for consensus on patient selection criteria among U.S. medical professionals treating those with the potential need of knee replacement surgery.

30 Jun 2014

Study identifies correlation between miRNAs and osteoarthritis

The results of a study presented today at the European League Against Rheumatism Annual Congress identify a correlation between the presence of biomarkers in the blood, known as micro RNAs (miRNAs), and the development of severe osteoarthritis (OA) of the knee or hip joint. The findings suggest that miRNAs may be used as biomarkers to predict severe OA disease in individuals.

12 Jun 2014

ConforMIS announces positive study results of iTotal implant at BASK meeting

ConforMIS, Inc., a medical device company pioneering patient-specific orthopaedic implants, today announced results from several clinical research studies highlighting the benefits of the iTotal® patient-specific total knee replacement.

4 Jun 2014

Nerve block technique offers potentially speedier recovery for orthopedic surgery patients

A Virginia Mason study has determined that a nerve block technique which avoids the femoral nerve results in the need for less morphine and a potentially speedier recovery for orthopedic surgery patients.

30 May 2014

Active Implants receives IDE approval to conduct NUsurface Meniscus Implant trial for knee osteoarthritis

Active Implants, the technology leader in cushion-bearing orthopedics for treatment of osteoarthritis, today announced it has received Investigational Device Exemption (IDE) approval to conduct a pivotal clinical trial of the NUsurface® Meniscus Implant in patients with knee osteoarthritis.

30 May 2014

P4 pain scale found suitable for use in knee osteoarthritis

The P4 pain scale compares favorably with other commonly used measures for patients with severe knee osteoarthritis, a Canadian study has found.

22 Apr 2014

Study finds that patients who lose weight have better joint replacement outcomes

While many overweight patients have the best intentions to lose weight after joint replacement, a study at Hospital for Special Surgery (HSS) finds that although some are able to achieve this goal, equal numbers of patients actually gain weight after hip or knee replacement.

17 Mar 2014

Study finds higher readmission rates for same-day total joint replacement surgery

As the effectiveness of anesthesia, pain management and rehabilitation continues to improve, more orthopaedic procedures are being done on an outpatient basis. In a new research study presented today at the 2014 Annual Meeting of the American Academy of Orthopaedic Surgeons, same-day total joint replacement (TJR) patient outcomes were comparable to those of patients admitted to the hospital and staying at least one night following surgery.

14 Mar 2014