Ulnar nerve injury
What is Ulnar nerve injury?
Deep branch of ulnar nerve, and sometimes by the stab wounds or penetrating injuries. After Ulnar nerve injury, the ulnar hand, all of the little finger, ring finger flexor is disappeared feeling. In the wrist, ulnar nerve injury prone to fragmentation. In the fingers and the palm, superficial branch of ulnar nerve injury is also vulnerable to fragmentation.
Ulnar nerve from the brachial plexus medial beam, along the brachial artery inside the downlink, a gradual shift towards the middle of the dorsal upper arm, the humerus on the posterior condylar groove of the ulnar nerve, flexor carpi ulnaris to wear foot bones and between the humeral head, issued by a branch to flexor carpi ulnaris, and then in the flexor carpi ulnaris and flexor profundus inter issued into the volar forearm to refer to the deep branch of ulnar flexor half, and then accompanied with the ulnar artery, flexor carpi ulnaris in radial-to-wrist deep in the back of the hand wrist issued about 5cm flexor skin sticks to the back of the hand. Backbone through the pisiform bone and hook of bone that is between the Ulnar tube is divided into deep, superficial branch, deep branch wearing hypothenar muscle deep into the palm of your hand, the dominant hypothenar muscles, all between the muscle and bone-like muscle and vermis 3,4 adductor pollicis and flexor pollicis brevis medial head. Superficial branch of ulnar and ulnar to the palm of your hand and a half means the skin. Ulnar nerve in the wrist and elbow easy to damage. Ulnar nerve injury resulted in a corresponding dysfunction.
What is causes of Ulnar nerve injury?
Ulnar nerve injury is caused by direct trauma or fracture dislocation injury. Pay no attention to general anesthesia when protection arm hanging on the operating table side, and can cause paralysis of oppression. In the cervical rib or former scalene syndrome, ulnar nerve damage in the most.
What are the Signs and symptoms of Ulnar nerve injury?
Ulnar nerve injury symptoms is paralysis with rib bone, earthworm-like muscle, adductor pollicis, deformed fingers, finger adduction, outreach obstacles, as well as hand ulnar sensory dysfunction, in particular, feel the disappearance of the little finger. In addition to the above the elbow injury symptoms but also have a ring, little finger flexion distal dysfunction.
What is Ulnar nerve injury diagnosis?
Ulnar nerve injury diagnosis is based on clinical symptoms and trauma history. and Electromyographic examination if necessary.
What is Ulnar nerve injury treatment?
Ulnar nerve injury with subsequent repair of poor muscle function, especially high injury. In addition to nerve repair as soon as possible, the wrist movement of the ulnar nerve and sensory nerve had been divided into bundles, can be nerve suture in order to improve surgical results. Late reconstruction of the main function is to correct claw hand deformity.
In accordance with injuries, for stress reduction, release or anastomosis. In order to obtain the length of the ulnar nerve can be moved to before the elbow. Ulnar nerve anastomosis than after the effect of radial nerve and median nerve. The majority of radial nerve motor fibers, the majority of median nerve sensory fibers, and ulnar nerve sensory and motor fibers in roughly equal, it should be noted especially when suture accurately on the position, not rotation. In the distal ulnar nerve suture simple sticks and sports sticks feeling well. If there is no recovery, can transfer the index finger, little finger extensor and intrinsic ring finger superficial flexor muscle between the muscle and bone instead of earthworm-like muscle, to improve hand function.