11/58. ulnar nerve injuries of the hand producing intrinsic muscle denervation on magnetic resonance imaging.Muscle and nerve injuries in the hand may be difficult to detect and diagnose clinically. Two cases are reported in which magnetic resonance imaging showed ulnar nerve injury and intrinsic hand muscle denervation. The clinical, anatomical and radiological features of injury to the deep motor branch of the ulnar nerve and associated muscle denervation are discussed and illustrated.- - - - - - - - - - ranking = 1keywords = nerve, nerve injury, injury (Clic here for more details about this article) |
12/58. ulnar nerve compression by an anomalous muscle following carpal tunnel release: a case report.We describe the acute development of ulnar nerve compression following carpal tunnel release in a patient with an accessory palmaris longus muscle. Although anomalous muscles in the wrist are relatively common and may produce ulnar nerve compression, this particular occurrence following carpal tunnel release has not been previously described in the literature. We theorize that the compression of the ulnar nerve proximal to Guyon's canal was caused by increased tension along the long axis of the anomalous accessory palmaris longus muscle as a consequence of transverse carpal ligament division.- - - - - - - - - - ranking = 0.96243487839551keywords = nerve (Clic here for more details about this article) |
13/58. electrodiagnosis in entrapment neuropathy by the arcade of Struthers.Two cases of high ulnar nerve neuropathy are reported. Lesions were localized at the midarm level by electrophysiologic studies. In the first case, the lesion was found mainly to be a prolonged neurapraxia, and neurolysis was effective. The ulnar nerve was swollen 1 cm in length under the arcade of Struthers. After neurolysis, the palsy recovered rapidly. In the other case, the lesion seemed to be a mild injury to the myelin sheath. Delayed segmental conduction velocity and partial conduction block were found at the midarm level. The paresis improved slightly during the 11-month followup without any treatment, but the electrophysiologic studies were unchanged. In both cases, physical examination did not distinguish the lesions from cubital tunnel syndrome. Electrophysiologic examination proved to be effective as a diagnostic procedure. In the presence of ulnar neuropathy, the upper arm segment should be included in a routine nerve conduction study to screen for the rare but important entrapment neuropathy caused by the arcade of Struthers.- - - - - - - - - - ranking = 0.41331056051112keywords = nerve, injury (Clic here for more details about this article) |
14/58. thumb digital neuropathy caused by splinting.Healthcare professionals are currently faced with a great variety of splints and splinting materials. Choices range from prefabricated products to custom splints made on-site from plaster, orthoplast, or fiberglass. In addition to providing immobilization to maintain a particular posture, a splint must protect important soft tissues. patients with hand or wrist injuries often receive a prefabricated metal cock-up wrist splint in emergency departments. Complications from splints are not uncommon but are infrequently reported. We report a case in which a metal wrist cock-up splint caused compression of the thumb ulnar digital nerve. Preventive measures for such complication are included.- - - - - - - - - - ranking = 0.13749069691364keywords = nerve (Clic here for more details about this article) |
15/58. Surgical management of Guyon's canal syndrome, an ulnar nerve entrapment at the wrist: report of two cases.Guyon's canal syndrome, an ulnar nerve entrapment at the wrist, is a well-recognized entity. The most common causes that involve the ulnar nerve at the wrist are compression from a ganglion, occupational traumatic neuritis, a musculotendinous arch and disease of the ulnar artery. We describe two cases of Guyon's canal syndrome and discuss the anatomy, aetiology, clinical features, anatomical classification, diagnostic criteria and treatment. It is emphasized that the knowledge of both the surgical technique and anatomy is very important for a satisfactory surgical result.- - - - - - - - - - ranking = 0.82494418148187keywords = nerve (Clic here for more details about this article) |
16/58. Congenital constriction band syndrome causing ulnar nerve palsy: early diagnosis and surgical release with long-term follow-up.Three children with congenital constriction band syndrome affecting their upper extremities demonstrated clinical and electrophysiologic signs of a complete ulnar nerve palsy. Two of the children were diagnosed immediately postpartum with the subtle findings of an intrinsic minus posture of their hand and inability to actively extend their fingers at the proximal interphalangeal joints. One child had at least 5.5 months of intrauterine compression of the ulnar nerve detected by ultrasound examination at 18 weeks. Despite early release of the constriction bands, at 3 months in 2 children and at 6 months in 1 child, the ulnar nerve palsies persisted for a mean follow-up period of 7 years. If clinical examination of an infant with constriction band syndrome is indicative of a complete ulnar nerve palsy, the constriction band should be released as early as possible. If surgical exploration reveals significant compression of the ulnar nerve, consideration should be given to excising the involved segment of nerve with immediate primary nerve repair or nerve grafting because even early release of the constriction band does not seem to result in neurologic improvement in long-term follow-up studies.- - - - - - - - - - ranking = 1.6498883629637keywords = nerve (Clic here for more details about this article) |
17/58. Aggressive keloid scarring of the Caucasian wrist and palm.keloid scarring of the distal upper extremity is very rare. We report a Caucasian woman who presented with aggressive keloids of the hand and wrist causing De Quervain's syndrome, superficial radial-nerve entrapment and ulnar-nerve compression at the wrist. Multiple operations were required to alleviate her symptoms. A number of management conundrums arose, requiring defensive planning to pre-empt the possible complications of recurrent keloid scarring as a result of the surgical procedures.- - - - - - - - - - ranking = 0.27498139382729keywords = nerve (Clic here for more details about this article) |
18/58. Secondary ulnar nerve palsy in adults after elbow trauma: a report of two cases.Secondary ulnar nerve palsy, an unusual condition in which the onset of ulnar nerve dysfunction occurs 1 to 3 months after elbow trauma, can be the cause of sudden deterioration of elbow function. Initially recognized in 1899, this condition has not been reported often. We describe 2 patients who had no subjective or objective evidence of ulnar nerve dysfunction after elbow trauma but had a sudden loss of motion, pain, and clinical and electrophysiologic evidence of ulnar nerve compression at the elbow 4 to 5 weeks after trauma. Marked improvement occurred after ulnar nerve subcutaneous transposition and contracture release.- - - - - - - - - - ranking = 1.2374162722228keywords = nerve (Clic here for more details about this article) |
19/58. ulnar nerve entrapment in Guyon's tunnel by an anomalous palmaris longus muscle with a persisting median artery.A case of ulnar nerve entrapment in Guyon's tunnel caused by an aberrant palmaris muscle, associated with a patent median artery and duplication of the median nerve, is reported.- - - - - - - - - - ranking = 0.82494418148187keywords = nerve (Clic here for more details about this article) |
20/58. Recovery from distal ulnar motor conduction block injury: serial EMG studies.Acute conduction block injuries often result from nerve compression or trauma. The temporal pattern of clinical, electrophysiologic, and histopathologic changes following these injuries has been extensively studied in experimental animal models but not in humans. Our recent evaluation of a young man with an injury to the deep motor branch of the ulnar nerve following nerve compression from weightlifting exercises provided the opportunity to follow the course and recovery of a severe conduction block injury with sequential nerve conduction studies. The conduction block slowly and completely resolved, as did the clinical deficit, over a 14-week period. The reduction in conduction block occurred at a linear rate of -6.1% per week.- - - - - - - - - - ranking = 0.5549936062757keywords = nerve, injury (Clic here for more details about this article) |
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