The plantar calcaneonavicular ligament (spring ligament) in its complete form is the three-component complex (superomedial band, inferoplantar longitudinal band, and inferoplantar oblique band) connecting the sustentaculum tali to the plantar navicular. It is the primary static talar head support.
| Origin | Sustentaculum tali and the anterior calcaneus between the anterior and middle facets |
|---|---|
| Insertion | Plantar and medial surfaces of the navicular |
Supports the talar head from its plantar and medial aspects, maintains medial longitudinal arch height, acts synergistically with the tibialis posterior tendon as the primary medial arch static stabiliser, and seals the talonavicular joint space medially.
Spring ligament insufficiency is a key component of adult acquired flatfoot deformity. MRI demonstrates signal change in the superomedial band in early failure before complete tearing. Comprehensive spring ligament reconstruction using native tissue plication or allograft augmentation is the cornerstone of Stage II flatfoot reconstruction.
Superomedial spring ligament repair or reconstruction combined with FDL tendon transfer and medial displacement calcaneal osteotomy in Stage II adult acquired flatfoot, restoring medial arch support.
MRI signal change (T2 hyperintensity) within the superomedial spring ligament band is the earliest imaging finding of spring ligament complex failure in progressive flatfoot, indicating surgical intervention.
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.
