Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Knee operations can lead to other injuries

06.12.2007
"If operated young soccer players return to play after just a few months, the risk of osteoarthritis development in the knee will increase in the long term" says researcher Richard Frobell. He addresses ACL injuries in a new thesis from Lund University in Sweden.

Operating on an anterior cruciate ligament injury can lead to other damage to the knee and to changes that remain a full year after the first injury. If an operation is to be carried out, the patient may have to rest his/her knee longer than would have been necessary without an operation.

Richard Frobell studied cruciate ligament injuries with a magnetic resonance camera (MR), a technique that is not usually applied in these contexts. The camera images show that the ligament injury in the knee joint as such is only part of the problem. Most of the patients also had, besides meniscus injuries, fractures and bone marrow lesions, that is, damage to the porous bone and bleeding in the bone marrow.

"This is new to the research society. A common belief is to treat these injuries as largely affecting the cruciate ligament only, something that could be reconstructed using a muscle tendon, and the patient would be fine," says Richard Frobell.

But operating can in fact make the knee worse. The MR study shows that knees that were operated on evinced still swollen joints, bone marrow damage, and cartilage changes one year after the original injury more often than knees that had not been operated on.

"Some athletes return very early to sports despite the fact that they have these types of complaints. Returning to sports early is often considered as a sign of a successful operation. But the risk of these people developing osteoarthritis in the future may have increased," says Richard Frobell.

Arthritis researchers have long been aware of the link between knee injuries and arthritis. The fact that injured players nevertheless go back to soccer is due to the fact that arthritis research has not been able to make an impact on sports medicine: to some extent they inhabit two separate medical worlds.

Richard Frobell also claims that knees with damaged anterior cruciate ligaments should not be operated on in early stages.

"Unless there is clear evidence that an operation is necessary, it's better to wait and see what structured rehabilitation can achieve. This is what we usually do in southern Sweden, with good results. Elsewhere there seems to be an exaggerated believe in surgical treatment, but this believe is not based on science," he says.

The dissertation also shows that as many as every second anterior cruciate ligament injury remains undetected. MR technology, which can help reveal undiagnosed injuries, is not commonly used by emergency wards at orthopedic clinics, and the damage is not shown in a regular x-ray.

"If the right questions are not asked, the swollen knee is not detected, and if the knee is not aspirated to verify bleeding in the joint, these patients will all too often be dismissed as having a simple knee sprain," says Richard Frobell. . He feels that every patient with a possible cruciate ligament injury should be referred to an experienced diagnostician, so that injuries will not be missed and grow worse.

The dissertation is titled Treatment and Outcome of Anterior Cruciate Ligament Injury: Truth or Consequences.

Richard Frobell can be reached at phone: +46 (0)42-406 32 25 or cell phone: +46 (0)708-507 882, richard.frobell@med.lu.se.

Ulrika Oredsson | alfa
Further information:
http://www.vr.se

More articles from Health and Medicine:

nachricht Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University

nachricht Direct conversion of non-neuronal cells into nerve cells
03.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Research finds new molecular structures in boron-based nanoclusters

13.07.2018 | Materials Sciences

Algae Have Land Genes

13.07.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>