Sinus tarsi: Difference between revisions

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{{Short description|Section of the hindfoot}}
{{Short description|Section of the hindfoot}}
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== References ==
== References ==
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[[Category:Feet]]

Revision as of 21:18, 12 January 2023

Sinus tarsi
A labeled diagram of the foot bones, with the sinus tarsi labeled (upper right; next to Tarsus label)
SynonymsTalocalcaneal sulcus
Identifiers
TA98A02.5.11.009
TA21476
FMA35138
Anatomical terminology

The sinus tarsi, also known as the talocalcaneal sulcus[1], is a cylindrical canal in the hindfoot. It has a complex anatomy, with five ligamentous structures and a pad of adipose tissue (fat).[2] The tarsal canal opens up into the sinus tarsi,[3] which is however a distinct structure.

Structure

The sinus tarsi located in the hindfoot, it is contained by the calcaneus, talus, talocalcaneonavicular joint, and the bottom of the subtalar joint.[1] There are five ligamentous structures present inside it: the intermediate, medial, and lateral roots of the inferior extensor retinaculum; the cervical ligament (CL), and the interosseous talocalcaneal ligament. There is also a pad of adipose tissue.[2] The tarsal canal also opens up into the sinus tarsi.[3]

Physiology

The sinus tarsi helps stabilize the ankle, as the cervical ligament limits inversion of the (turning in) and the interosseous talocalcaneal ligament limits eversion (turning out).[2]

Clinical significance

Sinus tarsi syndrome

Sinus tarsi syndrome is a clinical disorder of pain and tenderness in the sinus tarsi. This disorder can have a variety of causes: the most common is an inversion ankle sprain.[4]

Surgery access

In recent years, approaching a displaced intra-articular

calcaneus fracture via the sinus tarsi during surgery has been found to be more efficient in reconstructing the bone and less invasive, preserving soft tissue around the bone.[5][6]

References

  1. ^
    PMID 29365222
    .
  2. ^
    S2CID 221937877
    .
  3. ^
    PMID 15555844
    .
  4. ^ Bouché, Richard. "Sinus Tarsi Syndrome". American Academy of Podiatric Sports Medicine. Retrieved 2022-12-22.
  5. S2CID 225001642
    .
  6. S2CID 73496271
    .
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