malleolar sulcus

{{Short description|Grooves between the ankle and leg bones}}

File:Tibia fibula svg hariadhi.svg

The tibial malleolar sulcus, also known as the malleolar groove, is the smooth, vertical depression found on the posterior aspect of the medial malleolus.{{Cite web |title=Malleolar groove - eAnatomy |url=https://www.imaios.com/en/e-Anatomy/Anatomical-Parts/Malleolar-groove2 |access-date=2022-09-04 |website=IMAIOS |language=en}}{{Cite book |title=Gray's Anatomy: The Anatomical Basis of Clinical Practice |date=2015-10-09 |publisher=Elsevier |isbn=978-0-7020-5230-9 |editor-last=DSc |editor-first=Susan Standring PhD |edition=41st |location=New York |language=English}}{{Cite journal |last1=Radke |first1=J. |last2=Fink |first2=G. |date=1975 |title=[Anatomy of the lateral malleolar sulcus - a contribution to the causation of displacement of peroneal tendons (author's transl)] |url=https://pubmed.ncbi.nlm.nih.gov/1202789/ |journal=Zeitschrift für Orthopadie und Ihre Grenzgebiete |volume=113 |issue=5 |pages=858–863 |issn=0044-3220 |pmid=1202789}} This groove is traversed by the tendons of the tibialis posterior and flexor digitorum longus muscles.{{Cite web |title=malleolar groove |url=https://medical-dictionary.thefreedictionary.com/malleolar+groove |access-date=2024-03-21 |website=TheFreeDictionary.com |language=en}}

There are two malleolar sulci, medial and lateral. The medial malleolar sulcus is the posto-inferior groove just lateral to the medial malleolus on the distal part of the tibia.{{Cite journal |last1=Golanó |first1=Pau |last2=Vega |first2=Jordi |last3=de Leeuw |first3=Peter A. J. |last4=Malagelada |first4=Francesc |last5=Manzanares |first5=M. Cristina |last6=Götzens |first6=Víctor |last7=van Dijk |first7=C. Niek |date=2010-05-01 |title=Anatomy of the ankle ligaments: a pictorial essay |url=https://doi.org/10.1007/s00167-010-1100-x |journal=Knee Surgery, Sports Traumatology, Arthroscopy |language=en |volume=18 |issue=5 |pages=557–569 |doi=10.1007/s00167-010-1100-x |issn=1433-7347 |pmc=2855022 |pmid=20309522}} It is where the tendons of the tibialis posterior and flexor digitorum longus course on their way to their insertions on the foot. The lateral malleolar sulcus is the posto-inferior groove on the distal part of the fibula. The tendons of the peroneus longus and peroneus brevis course behind it on the way to their insertions on the foot.