Featured Research

from universities, journals, and other organizations

Advanced Imaging Technology Improves Spinal Surgery Outcome

Date:
December 23, 2008
Source:
Mayo Clinic
Summary:
Using a three-dimensional image-guided system to help place screws in the spines of patients results in safe and accurate surgery with a decrease in the number of misplaced screws, and subsequent injuries, seen in more traditional operations, say neurosurgeons.

Using a three-dimensional (3D) image-guided system to help place screws in the spines of patients results in safe and accurate surgery with a decrease in the number of misplaced screws, and subsequent injuries, seen in more traditional operations, say neurosurgeons at Mayo Clinic in Florida.

In the Dec. 9 online edition of the Journal of Neurosurgery: Spine, Mayo physicians published the largest study yet using 3D image-guided technology to place screws in the spine for spinal fusion procedures. The screws are used to stabilize the spine in patients who suffer from collapsed discs or compressed nerves.

Specifically, after implanting 1084 "pedicle" screws in 220 patients, surgeons reported a nerve injury rate of less than 1 percent. Additionally, less than 1 percent of the screws in this study were considered to be significantly misplaced. That compares to a reported nerve injury rate of up to 8 percent and a misplacement rate of up to 55 percent using standard technology. As well, re-operation for removal of a misplaced screw has been reported in other surgical literature to be as high as 6.5 percent but occurred in less than half of one percent of all patients in the Mayo study, according to the researchers.

"Using 3D image-guided technology to help us place these screws results in a much better outcome for our patients," says Mayo Clinic neurosurgeon Eric Nottmeier, M.D., the study's lead investigator. "In addition to the decreased incidence of nerve root injury, this technology allows us to place larger screws into the spine, which can also increase the success rate of the operation."

The technology uses a special camera on a computer that uses infrared light to track a surgical instrument in 3D space. The surgeon places the instrument on the patient's spine and navigates the spine using the computer. The surgical instrument is used to determine the best entry point and trajectory for each screw. An image-guided screwdriver is used to place a screw.

In most other institutions, pedicle screws are placed using a freehand technique or by fluoroscopy, which uses X-rays to capture a one-dimensional image on a television screen of the process of screw placement. Not only is the image less detailed, but both patients and the operating room staff can be exposed to radiation and must use lead clothing for protection, Dr. Nottmeier says. Almost all patients in this study were given a CT scan following surgery so that a radiologist could independently determine how well the screws were placed.

"Every person's spine is a little bit unique," Dr. Nottmeier says, "and unexpected variations in bone shape and density can make screw placement in the spine more challenging, especially in patients who have had previous spine surgery." Almost half of the patients in the Mayo study had a previous spine surgery.

"This technique allows us to have the best view possible of the vertebrae as we operate," Dr. Nottmeier says.

Based on the success of the technique, the image guidance system is now used in all spinal screw operations at Mayo Clinic's campus in Florida.

Two different image guided systems were used in this study: the "Stealth Treon," manufactured by Medtronic of Littleton, Mass., and the "BrainLAB Vector Vision," from BrainLAB in Westchester, Ill. Nottmeier is a paid consultant for BrainLAB, however, this study was done independently and did not involve any company funding.

Co-authors of the study include Phillip M. Young, M.D., Department of Radiology, Mayo Clinic in Florida, and Will Seemer, B.A., Department of Chemistry, from the University of North Florida in Jacksonville.


Story Source:

The above story is based on materials provided by Mayo Clinic. Note: Materials may be edited for content and length.


Cite This Page:

Mayo Clinic. "Advanced Imaging Technology Improves Spinal Surgery Outcome." ScienceDaily. ScienceDaily, 23 December 2008. <www.sciencedaily.com/releases/2008/12/081210112800.htm>.
Mayo Clinic. (2008, December 23). Advanced Imaging Technology Improves Spinal Surgery Outcome. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2008/12/081210112800.htm
Mayo Clinic. "Advanced Imaging Technology Improves Spinal Surgery Outcome." ScienceDaily. www.sciencedaily.com/releases/2008/12/081210112800.htm (accessed April 20, 2014).

Share This



More Health & Medicine News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nine-Month-Old Baby Can't Open His Mouth

Nine-Month-Old Baby Can't Open His Mouth

Newsy (Apr. 19, 2014) Nine-month-old Wyatt Scott was born with a rare disorder called congenital trismus, which prevents him from opening his mouth. Video provided by Newsy
Powered by NewsLook.com
'Holy Grail' Of Weight Loss? New Find Could Be It

'Holy Grail' Of Weight Loss? New Find Could Be It

Newsy (Apr. 18, 2014) In a potential breakthrough for future obesity treatments, scientists have used MRI scans to pinpoint brown fat in a living adult for the first time. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com
Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins