Navigation Links
Computer-navigated total knee replacement provides no advantage over traditional surgical procedure
Date:11/21/2012

ROSEMONT, Ill., Nov. 21, 2012 /PRNewswire-USNewswire/ -- For many years, the use of computer-assisted navigation has been touted as improving the positioning, sizing and alignment of replacement knee joints, resulting in greater durability of joints and overall improvement in patient movement. However, new research published in the Journal of Bone and Joint Surgery (JBJS) found no difference in knee function, alignment or durability/survivorship between joints positioned and completed with the help of computer navigation, and those replaced with conventional total knee arthroplasty (TKA) procedures.

Researchers in Korea compared the results of 520 patients with osteoarthritis who underwent computer-navigated TKA for one knee and conventional TKA for the other knee.  Patients included 452 women (904 knees) and 68 men (136 knees). Patients were assessed before surgery, and then at three months and one year following surgery, and annually thereafter, for 10 to 12 years (mean assessment duration: 10.8 years). Patients were assessed clinically using the Knee Society rating system and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and. radiographically using X-rays or CT scans.

No statistically significant differences were noted between the computer-navigated and traditional procedure scores pertaining to knee function, pain, knee motion and activity, according to the study. In addition, the Knee Society and WOMAC scores were comparable for both procedures.

"Our mid-term follow-up data demonstrated no difference in clinical function or alignment and survivorship of the components between the knees that underwent computer-navigated total knee arthroplasty and those that underwent conventional total knee arthroplasty," said Young-Hoo Kim, MD, The Joint Replacement Center, Ewha Womans University School of Medicine in Seoul, Korea.

Key Findings:

  • Survivorship of the implants at 10.8 years after the operation was not significantly different: 98.8 percent in the computer-navigated TKA group and 99.2 percent in the conventional TKA group.
  • The length of the incision, the intra-operative blood loss, the duration and volume of drainage, and the transfusion volume were not significantly different between the two groups.
  • The mean operative time and time during which the surgeons used a tourniquet (a thigh band to minimize bleeding) were significantly longer in the computer-navigated TKA group than in the conventional TKA group.

"The effect of computer-navigated total knee arthroplasty compared with conventional total knee arthroplasty on long-term implant survival remains unproven," said Dr. Kim.

About JBJS

November 21st Full JBJS Table of Contents

Computer-Navigation versus Conventional Total Knee Arthroplasty. Prospective Randomized Trial

Risk of Sciatic Nerve Traction Injury During Hip Arthroscopy – Is it the Amount or Duration? An Intra-Operative Nerve Monitoring Study

Functional Impact of Tibial Malrotation Following Intramedullary Nailing of Tibial Shaft Fractures

Ultrasound-Guided Interscalene Block Anesthesia for Shoulder Arthroscopy: A Prospective Study of 1,319 Patients

Risk Factors of Wound Complications after Ankle Fracture Surgery

Long-term Follow-up of Shoulder Hemiarthroplastay for Glenohumeral Osteoarthritis

Do Traction Views of Distal Radial Fractures Influence Fracture Characterization and Treatment?

Improved Healing of Large Segmental Defects in the Rat Femur by Reverse Dynamization in the Presence of Bone Morphogenetic Protein-2

Outcomes of Operative Treatment of Unstable Ankle Fracture-Comparison Between Metallic and Biodegradable Implants

Prognostic Factors for Bacterial Cultures Positive with Propionibacterium Acnes and Other Organisms in a Large Series of Cases of Shoulder Arthroplasty Revised for Stiffness, Pain or Loosening

The Effect of Collagen Nerve Conduits Filled with Collagen-GAG Matrix on Peripheral Motor Nerve Regeneration in a Rat Model

A Nation in Motion
More than one in four Americans have bone or joint health problems, making them the greatest cause of lost work days in the U.S. When orthopaedic surgeons restore mobility and reduce pain, they help people get back to work and to independent, productive lives. Orthopaedic surgeons provide the best value in American medicine in both human and economic terms and access to high-quality orthopaedic care keeps this "Nation in Motion." To learn more, to read hundreds of patient stories or to submit your own story, visit anationinmotion.org.

More information on knee replacement can be found at orthoinfo.org


'/>"/>
SOURCE The Journal of Bone and Joint Surgery
Copyright©2012 PR Newswire.
All rights reserved

Related medicine technology :

1. Retired Pro Hockey Player 1st to Receive Total Artificial Heart in Upstate New York
2. MDHI in Agreement with Debt Holders - Portion of Convertible Debt and Additional 14M Warrants Cancelled -- Total of 101M Warrants Cancelled this Year
3. 3 Pediatric Centers that Offer SynCardia Total Artificial Heart Named in Top 10 for "Best Childrens Hospitals"
4. Total Therapeutic Management, Inc. invites directors of quality improvement to learn secrets of provider engagement strategies
5. 1st SynCardia Total Artificial Heart Implant Performed in New England
6. 50% of U.S. News & World Reports "Best Hospitals" for Cardiology & Heart Surgery Making the SynCardia Total Artificial Heart Part of Their Toolbox
7. Introducing DenMats Totally New Web Site @ DenMat.com Featuring a New On-Line Store, New Page Design & Special On-Line Savings
8. Met-Pro Corporations Strobic Air Business Unit Receives New Equipment Orders Totaling Approximately $1.5 Million
9. Solos Endoscopy Posts Total Assets of $2,426,883 for Period Ended June 30, 2012
10. SynCardia Total Artificial Heart Patient Featured in U.S. News & World Reports "Best Hospitals" Issue
11. 1st SynCardia Total Artificial Heart Patient Discharged from Ankara University in Turkey
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/5/2016)... Mich. , Dec. 5, 2016  Sharn Anesthesia ... preferred anesthesia sales and distribution partner for Salter Labs.  ... of the Year in recognition of outstanding sales performance. ... devices for respiratory and anesthesia care, including the market ... is also the master distributor of the Parker Flex-Tip® ...
(Date:12/5/2016)... TrainerMD , the first HIPAA compliant software collaboration platform for patients, ... . Styku, a California -based software ... world-class, real-time 3D body scanning and analysis. Together with its other ... and feel their health like never before. ... , , ...
(Date:12/5/2016)... PARSIPPANY, N.J. , Dec. 5, 2016 ... today announced preliminary safety and efficacy data from ... oral selective MDM2 inhibitor, suggesting that DS-3032 may ... relapsed/refractory acute myeloid leukemia (AML) and high-risk myelodysplastic ... part of the phase 1 study of DS-3032 were ...
Breaking Medicine Technology:
(Date:12/6/2016)... ... December 06, 2016 , ... GrekTek LLC, ( http://www.grektek.com ) ... ( http://kck.st/2g3a1so ) for the HealthyWatch, a new device to help patients manage ... the watch while sharing these events with caregivers in real time. ...
(Date:12/6/2016)... (PRWEB) , ... December 06, 2016 , ... 'Tis the ... disrupt daily routines. That means it's also the season when eating healthy, staying active, ... with diabetes) on schedule is harder to do. , "Shopping trips, parties and ...
(Date:12/6/2016)... ... December 06, 2016 , ... ... recount of a powerful woman's story of sacrifice and enlightenment. , ... published author, Carolyn Fryer. Always looking for creative outlets, Carolyn gravitated toward writing ...
(Date:12/6/2016)... ... 06, 2016 , ... TopConsumerReviews.com recently gave a best-in-class 5 star rating to ... give freedom to people who need help getting around. For some, advancing age has ... period of rehabilitation after an illness or accident. There is a wide variety of ...
(Date:12/6/2016)... ... December 06, 2016 , ... "Add realistic flares and ... flash, and flare from clip to clip with high quality 4K lens flare footage," ... Jewel contains 44 lens flares filmed on the RED Dragon. Utilizing the Dragon Sensor, ...
Breaking Medicine News(10 mins):