Does everyone have os peroneum?

Os peroneum is identified in 4.7–30% of normal feet [1] and is bipartite in approximately 30% of cases and unilateral in 40%. Its fully ossified form is found in about 26% of population [2].

What does small os peroneum mean?

An os peroneum is a small accessory bone of the foot located at the lateral plantar aspect of the cuboid within the substance of the peroneus longus tendon as it arches around the cuboid.

Is os peroneum painful?

The os peroneum (OP) is a small sesamoid bone located inside the peroneus longus tendon (PLT), close to the cuboid. The OP can be the cause of pain and can be associated with lesions of the PLT.

Is os peroneum an extra bone?

The os peroneum is an accessory bone that is located in the peroneus longus tendon which passes over the lateral aspect of the foot. About 1 in 5 people have this extra bone.

Does os peroneum require surgery?

Background. The os peroneum is a sesamoid bone in the peroneus longus tendon. Fractures of the os peroneum are rare. Some authors recommend surgery for active patients.

How is os peroneum treated?

Proposed treatment strategies for fracture of the os peroneum include nonoperative treatment, fixation of the fracture, excision of the bone with direct repair of the tendon, and tenodesis of the peroneus longus to the peroneus brevis.

Does OS Peroneum require surgery?

What causes OS Peroneum?

A painful os peroneum is known as os peroneum syndrome and radiologists can mischaracterize this finding. Os peroneus syndrome can be of a chronic nature or result from acute trauma such as an inversion injury. Pain is present at the area and there is often tearing or damage to the surrounding peroneus longus tendon.

How is OS Peroneum treated?

Treatments for an os peroneum fracture include nonoperative management, fixation of the fracture, excision of the bone with direct repair of the tendon, and tenodesis of the peroneus longus to the peroneus brevis [7, 9, 10, 15, 18, 20–23, 27, 29, 30].

Where is the OS Peroneum located?

Os peroneum is one of several accessory ossicles of the foot and ankle, located lateral to the cuboid within the distal peroneus longus tendon.

What causes a OS Peroneum fracture?

[1] Acute fracture of the os peroneum is most commonly caused by strong contraction of the peroneus longus muscle with associated inversion or supination.

What is the role of MRI in the diagnosis of OS peroneum?

Radiographic images can help in demonstrating any abnormal displacement of the os peroneum, fracture, or diatasis of a bipartite sesamoid. MRI is considered to be the gold standard for the detection of painful os peroneum syndrome.

What is OS peroneum syndrome?

Os peroneum syndrome. The os peroneum syndrome ( (sometimes termed painful os peroneum syndrome (POPS)) refers to a wide spectrum of conditions associated with an os peroneum at the lateral aspect of the foot. It can result in tenosynovitis and/or discontinuity of the peroneus longus tendon.

How is OS peroneum syndrome (OSP) diagnosed?

Clinical diagnosis of os peroneum syndrome should involve physical examination that can help reveal swelling over the cuboid with pain felt during palpation. The patient will feel this pain intensify during plantar flexion, and during the heel elevation stage of the gait process.

What is the pathophysiology of OS peroneum fracture?

An acute os peroneum fracture or a diastases of a multipartite os peroneum, either of which may result in a discontinuity of the peroneus longus tendon. Chronic (healing or healed) os peroneum fracture or diastases of a multipartite os peroneum with callus formation, either of which results in a stenosing peroneus longus tenosynovitis.