Rupture of the Extensor Pollicis Longus Tendon - Everything You Need To Know - Dr. Nabil Ebraheim скачать в хорошем качестве

Rupture of the Extensor Pollicis Longus Tendon - Everything You Need To Know - Dr. Nabil Ebraheim

Educational video describing the condition known as extensor pollicis longus tendon rupture. Located on the dorsal side of the forearm, the extensor pollicis longus muscle inserts into the base of the distal phalanx of the thumb. The EPL tendon is responsible for extension of the thumb’s distal interphalangeal joint. When a rupture of the EPL tendon occurs, the patient will experience loss of thumb extension. The EPL tendon is most commonly ruptured due to fractures of the distal radius. Rupture is more common in undisplaced fractures compared to displaced fractures. The extensor pollicis longus muscle is innervated by the posterior interosseous nerve, which branches from the radial nerve. It is important to determine if the loss of thumb extension is due to tendon rupture or interruption of the posterior interosseous nerve. The tendon is prone to rupture and increased friction distal to the extensor retinaculum at the Lister’s tubercle. More common with undisplaced fracture due to ischemic rupture or attrition. Rupture usually occurs between 3 weeks to 3 months after injury. Treatment In rare cases when the rupture is acute, palmaris longus graft may be used to bridge a gap. Transfer of the extensor indicis proprius (EIP) tendon to the EPL tendon is used for the treatment of an EPL rupture (the best option).