The accessory navicular (os navicularum or os tibiale externum) is an extra bone or piece of cartilage located on the inner side of the foot just above the arch. It is incorporated within the posterior tibial tendon, which attaches in this area and …

Mar 13, 2025 · An accessory navicular is a large accessory ossicle that can be present adjacent to the medial side of the navicular bone. The tibialis posterior tendon often inserts with a broad attachment into the ossicle.

Nov 6, 2023 · Acessory Navicular is a common idiopathic condition of the foot that presents with an enlargement of the navicular bone. Diagnosis is made with plain radiographs of the foot showing a plantar medial enlargement of the navicular bone.

An accessory navicular bone is an accessory bone of the foot that occasionally develops abnormally in front of the ankle towards the inside of the foot. This bone may be present in approximately 2-14% of the general population and is usually asymptomatic.

Nov 16, 2023 · An accessory navicular is an extra piece of cartilage or bone found in the medial foot arch on the inner side of the foot, next to the navicular. It usually sits within the posterior tibial tendon, one of the main stabilising muscles of the foot that supports the inner foot arch.

May 10, 2024 · What is an Accessory Navicular (Accessory Navicular Bone)? An accessory navicular, also known as an accessory navicular bone or os naviculare, is an extra bone that develops near the navicular bone in the foot. This additional bone is formed during the fetal development stage.

Nov 16, 2024 · The accessory navicular syndrome, also known as os naviculare syndrome occurs when a type II accessory navicular becomes painful due to movement across the pseudo-joint between the ossicle and the navicular bone.

What Is Accessory Navicular Syndrome? The accessory navicular bone is a surplus piece of cartilage or bone fragment. It usually forms in the inner part of the foot, right above...

An accessory navicular is an extra bone that is on the inner center arch of the foot. Up to 2.5 percent of individuals are born with the accessory navicular. Throughout early childhood, this condition is not noticed.

Oct 11, 2016 · The navicular (named from “naval”, or boat shaped) sits between the medial cuneiform and the talus and is located in the inside arch of the foot. Accessory navicular syndrome may be associated with flat feet and usually causes symptoms in adolescence.