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 Finnish research group discovers a new immune system regulator
23.02.2018 | University of Turku

nachricht Minimising risks of transplants
22.02.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg

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: Attoseconds break into atomic interior

A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.

In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...

Im Focus: Good vibrations feel the force

A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.

By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Basque researchers turn light upside down

23.02.2018 | Physics and Astronomy

Finnish research group discovers a new immune system regulator

23.02.2018 | Health and Medicine

Attoseconds break into atomic interior

23.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>