The natatory ligament (superficial transverse metacarpal ligament) is a transverse band of palmar fascia running across the web spaces of the palm at the level of the distal palmar crease, connecting the digits at the base of the finger webs. It is the most distal transverse component of the palmar fascia and forms the web space floor. It is named for its resemblance to the webbing between digits in swimming animals.
Maintains web space width between adjacent fingers, restricts excessive finger spread, and forms the superficial fascial roof of the web space fat pad.
The natatory ligament is the first structure involved in Dupuytren disease at the web space level. Natatory cord formation from diseased natatory ligament contracture draws adjacent fingers together (adduction deformity across the web), reducing the width of the web space and limiting finger abduction. Natatory cord release is a key step in Dupuytren fasciectomy and in percutaneous needle aponeurotomy at the web space. The natatory ligament is identified in the web space just deep to the skin at the interdigital fold.
Diseased natatory ligament forms a natatory cord drawing adjacent fingers together across the web space, producing an adduction deformity that narrows the web and reduces finger spreading ability; percutaneous needle aponeurotomy or fasciectomy releasing the cord at the web space restores web width.
This website uses cookies to enhance your experience. Some are essential for site functionality, while others help us analyze and improve your usage experience. Please review your options and make your choice.
If you are under 16 years old, please ensure that you have received consent from your parent or guardian for any non-essential cookies.
Your privacy is important to us. You can adjust your cookie settings at any time. For more information about how we use data, please read our privacy policy. You may change your preferences at any time by clicking on the settings button below.
Note that if you choose to disable some types of cookies, it may impact your experience of the site and the services we are able to offer.
Some required resources have been blocked, which can affect third-party services and may cause the site to not function properly.
This website uses cookies to enhance your browsing experience and ensure the site functions properly. By continuing to use this site, you acknowledge and accept our use of cookies.
