Featured Research

from universities, journals, and other organizations

Timing of surgery for knee injuries may not affect outcomes

Date:
December 1, 2009
Source:
American Academy of Orthopaedic Surgeons
Summary:
Multiple-ligament knee injuries resulting from traumatic knee dislocations such as high impact car accidents or certain sports are uncommon, and the optimal timing of surgical repair or reconstruction has not been definitively established.

Multiple-ligament knee injuries resulting from traumatic knee dislocations -- such as high impact car accidents or certain sports are uncommon, and the optimal timing of surgical repair or reconstruction has not been definitively established.

According to a new study published in the December 2009 issue of The Journal of Bone and Joint Surgery (JBJS), patients who undergo surgery more than three weeks after a multiple ligament knee injury (called chronic intervention treatment) may have comparable outcomes to those who undergo surgery within three weeks of injury (called acute intervention treatment) with regard to knee stability. Additionally, researchers found that early mobility is associated with better outcomes than immobilization in those patients who are treated within that three week time period.

"After a review of the available literature, we found that chronic intervention provides results that are at least as good as acute intervention, despite some recent studies showing that acute intervention may be better," said lead author of the study William R. Mook, MD, who conducted the study with colleagues from the Department of Orthopaedic Surgery at the University of Virginia in Charlottesville.

Dr. Mook and his colleagues surveyed 24 retrospective studies that included 396 knees treated surgically for the most severe multiple-ligament knee injuries. Patients were managed either acutely, chronically, or with a combination of both interventions, which is called staged treatment. The researchers also studied whether the patient's leg should or should not be mobile or immobilized after surgery.

The study found that:

  • patients receiving acute intervention had less stable knees and were not able to bend their knees as far as those who were treated with chronic intervention; and
  • patients who underwent staged procedures (treatment from both the acute and chronic intervention stages) reported better outcomes than those treated just early or late.

"The reasons for this are not clear. The patient population is heterogeneous, and surgery can be delayed for a variety of reasons. It is difficult to tell which procedures were delayed intentionally and which were delayed due to other medical reasons occurring as a result of their initial injury," Dr. Mook said.

This literature review suggests the following:

  • Surgical reconstructions within three weeks of the injury and those performed later provide comparable knee stability.
  • In patients treated within three weeks of injury, early mobility (compared with immobilization) is associated with better outcomes. However, early surgery is highly associated with range-of-motion limitations.
  • Patients reported better outcomes and fewer range-of-motion limitations with a combination of acute and chronic procedures. However, additional treatment for joint stiffness may be required in these patients.
  • In patients treated within three weeks of their injury, more aggressive rehabilitation may prevent the need for additional treatment for joint stiffness.

Previous studies have indicated that early treatment provides better outcomes, but that may not be the case. "Although recent evidence suggests that acute intervention is superior to chronic interventions in all outcomes, we found that chronic intervention may provide knees with equal stability as those managed acutely," Dr. Mook concluded.


Story Source:

The above story is based on materials provided by American Academy of Orthopaedic Surgeons. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Orthopaedic Surgeons. "Timing of surgery for knee injuries may not affect outcomes." ScienceDaily. ScienceDaily, 1 December 2009. <www.sciencedaily.com/releases/2009/12/091201152644.htm>.
American Academy of Orthopaedic Surgeons. (2009, December 1). Timing of surgery for knee injuries may not affect outcomes. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2009/12/091201152644.htm
American Academy of Orthopaedic Surgeons. "Timing of surgery for knee injuries may not affect outcomes." ScienceDaily. www.sciencedaily.com/releases/2009/12/091201152644.htm (accessed September 18, 2014).

Share This



More Health & Medicine News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Artificial Sweetener Could Promote Diabetes

Artificial Sweetener Could Promote Diabetes

Newsy (Sep. 17, 2014) Doctors once thought artificial sweeteners lacked the health risks of sugar, but a new study says they can impact blood sugar levels the same way. Video provided by Newsy
Powered by NewsLook.com
Ebola Vaccine Trial Gets Underway at Oxford University

Ebola Vaccine Trial Gets Underway at Oxford University

AFP (Sep. 17, 2014) A healthy British volunteer is to become the first person to receive a new vaccine for the Ebola virus after US President Barack Obama called for action against the epidemic and warned it was "spiralling out of control." Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Obesity Rates Steady Even As Americans' Waistlines Expand

Obesity Rates Steady Even As Americans' Waistlines Expand

Newsy (Sep. 17, 2014) Researchers are puzzled as to why obesity rates remain relatively stable as average waistlines continue to expand. Video provided by Newsy
Powered by NewsLook.com
President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. 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