Sporhopaedics Mathys

The cruciate ligament

The knee joint – like all large joints – is surrounded by a capsule of solid connective tissue. Together with movable cartilage elements such as the menisci as well as the tendons and muscles, it prevents the bones in the knee joint from shifting relative to each other in an uncontrolled manner: These components stabilise the knee joint and guide its movements.

The medial and lateral collateral ligaments serve as lateral stabilisers of the knee. Both ligaments prevent the knee from giving way into a varus or valgus position, and additionally limit the rotational movements of the knee.

The anterior and posterior cruciate ligaments run inside the joint. They secure the joint from the inside and thus fulfil three mechanical functions:

  • Limitation of rotational movements
  • Protection against hyperextension of the knee
  • Prevention of the lower leg from shifting forwards (anterior cruciate ligament) or backwards (posterior cruciate ligament)

The ligaments play an important role in movement and sports: Along with stabilisation and guidance, numerous nerve fibres running through the inside of the ligaments provide information about pressure or external influences. These sensors continually report the joint position and forces involved to the muscles of the thigh and lower leg. This important exchange of information provides significant support to the muscles in performing movements as well as position and posture.

A cruciate ligament rupture therefore affects not only the mechanical stability of the joint but also the control function of the ligament. Persons who have suffered a cruciate ligament rupture often have a feeling of instability, which can be attributed to impaired joint perception (“proprioception”). As a result, athletes may no longer be able to perform movements with the necessary precision.

Terms of use

These web pages contain general information about the Ligamys implant, crucial ligament injuries and its treatments as well as the manufacturing company Mathys Ltd Bettlach. They do not contain specialist advice, recommendations, instructions or binding offers. If you have questions regarding Ligamys, please contact us directly under info@ligamys.com

Although we endeavour to always keep the information on our website up-to-date, we cannot guarantee that content is complete or correct. Mathys Ltd Bettlach cannot be held liable for damages in this regard.

Visitors make use of our website, or of other websites/content linked with us, at their own risk, especially where virus hazards are concerned. We cannot be held liable for information from third parties. The provenance of such information is indicated in each case. Neither Mathys Ltd Bettlach nor third parties involved with the production, provision, design and maintenance of the internet offering as a whole or parts thereof (including linked pages) can be held in any way liable for direct or indirect damages of any kind that may arise from access to, use of, or inability to use the Mathys Ltd Bettlach website or associated information offerings, even where negligence is involved.

All images and information on this website, inasmuch as their duplication is possible, are protected by copyright or other commercial proprietary rights. This information may not be used or duplicated without prior written authorisation from Mathys Ltd Bettlach.

Web pages are subject to modification without prior notice; there shall be no consequential liability.


Site operator
Mathys Ltd Bettlach
Robert Mathys Strasse 5
P. O. Box
2544 Bettlach

Tel. +41 32 644 1 644
Fax +41 32 644 1 161

Plugster – Interactive Design Services
Falkenstrasse 44
2502 Biel/Bienne
Tel. +41 32 322 44 88

aquaverde GmbH
Falkenstrasse 44
2502 Biel/Bienne