Peroneus Longus Tendon Rupture Os Peroneum Injury - Everything You Need To Know - Dr. Nabil Ebraheim скачать в хорошем качестве

Peroneus Longus Tendon Rupture Os Peroneum Injury - Everything You Need To Know - Dr. Nabil Ebraheim

Dr. Ebraheim’s educational animated video describes rupture of the Peroneus Longus Tendon and the Os Peroneum injury. There are two muscles in the lateral compartment of the leg: 1-Peroneus Brevis tendon (shows muscle fibers distally) 2-Peroneus longus tendon The tendon of the peroneus longus runs on the outside of the peroneus brevis tendon with both tendons being held in their positions by the peroneal retinacula. The two peroneal tendons lie behind the fibula in a groove. The peroneal longus muscle originates from the upper lateral shaft of the fibula and inserts into the first metatarsal bone and the medial cuneiform bone of the plantar side of the foot. The Os Peroneum is a sesamoid bone that is present within the peroneus longus tendon in about 20% of people’s feet and it is normally located less than 1 cm proximal or distal to the calcaneocuboid joint. The Os peroneum moves with normal and abnormal tendon motion. This ossicle is located within the peroneus longus tendon and should not be confused with the Os Vesalianum Pedis accessory bone or an apophysis of the fifth metatarsal. The oblique course of the peroneus longus tendon within the cuboid groove and the presence of the Os peroneum along with sudden movement such as inversion and supination of the foot may cause rupture of the tendon at the site of the ossicle. If the Os peroneum has proximal migration more than 1 cm from the calcaneocuboid joint. If the Os peroneum has proximal migration more than 1 cm from the calcaneocuboid joint, rupture of the peroneus longus tendon is likely. MRI can confirm the diagnosis. MRI shows the proximal migration of the ossicle. The Os peroneum is bilateral in about 60% of patients and the ossicle is bipartite in 30% of patients. Fractures of the Os peroneum are rare. Fragment separation of 6 mm or more is associated with rupture of the peroneus longus tendon. Signs and symptoms of peroneus longus tendon rupture are not specific. Systemic disease such as diabetes, and rheumatoid arthritis, as well as advanced age, may be precipitating factors. Treatment Surgical excision of the ossicle is usually done in complete ruptures with repair of the peroneus longus tendon or tenodesis to the peroneus brevis tendon. Become a friend on facebook:   / drebraheim   Follow me on twitter: https://twitter.com/#!/DrEbraheim_UTMC