1/8. Iatrogenic ulnar nerve injury after percutaneous cross-pinning of supracondylar fracture in a child.Supracondylar fracture of the humerus is the most common fracture of the elbow in children and has been treated by a variety of methods. Recently, stabilization of reduced fractures with percutaneous pin fixation has become the accepted method of treatment. ulnar nerve injury is a complication of percutaneous pinning of supracondylar fractures, although many authors have reported that it resolves spontaneously after removal of the pin.- - - - - - - - - - ranking = 1keywords = fracture (Clic here for more details about this article) |
2/8. Fracture of the distal part of the radius associated with severed ulnar nerve.We report a case of a severed ulnar nerve after fracture of the distal part of the radius. The most likely hypothesis is stretching of the ulnar nerve fixed by Guyon's canal and severed on the sharp edge of the proximal radius. Although very rare, this lesion must be investigated particularly in cases with marked displacement, especially ulnar and/or volar.- - - - - - - - - - ranking = 0.125keywords = fracture (Clic here for more details about this article) |
3/8. Intraneural nerve metastasis with multiple mononeuropathies.Although cancer is a frequent condition, neoplastic involvement of the peripheral nervous system is rare. The mechanisms are heterogeneous and include lesions within the cerebrospinal fluid (CSF) space, local invasion (e.g. brachial plexus), compression, rarely direct infiltration, perineurial spread and even rarer intranerval metastasis. A 47-year-old woman had been treated for a carcinoid 10 years earlier and had received axillar irradiation. At presentation she suffered from weakness of the biceps brachii and was experiencing pain radiating from the axilla into the forearm and thumb. MR scans of the brachial plexus were negative and her symptoms were primarily considered to stem from a postradiation brachial plexopathy, Because of increasing pain, the brachial plexus was explored and a metastasis in the left musculocutaneous nerve was resected. Several months later, numbness and pain appeared in the ulnar nerve and another intrafascicular metastasis in the ulnar nerve was discovered. Resection with preservation of remaining fascicles was performed. This rare case report demonstrates that multiple mononeuropathies, resembling multiplex neuropathy, may be caused by intranerval metastasis.- - - - - - - - - - ranking = 0.013580674640177keywords = compression (Clic here for more details about this article) |
4/8. Demyelinating focal motor neuropathy of the ulnar nerve masquerading as compression in Guyon's canal: a case report.ulnar nerve-innervated intrinsic muscle weakness, in the absence of sensory complaints or deficits, usually is the result of compression at the ulnar nerve in zone II of Guyon's canal. In rare instances the problem is not caused by a compressive neuropathy but by a demyelinating focal motor neuropathy. Demyelinating neuropathies have been well documented in the neurologic literature but they have received little attention in the hand surgery literature. We report on one such case and the importance of differentiating the 2 neuropathies. Although surgery often is necessary for a compressive neuropathy it is contraindicated for a demyelinating neuropathy.- - - - - - - - - - ranking = 0.067903373200886keywords = compression (Clic here for more details about this article) |
5/8. Ulnar neuropathy in the forearm: A possible complication of diabetes mellitus.Ulnar neuropathy in the forearm is an unusual cause of hand weakness and sensory loss that is most often attributed to compression of the nerve distally within the humero-ulnar arcade (cubital tunnel). An association with diabetes mellitus, however, has not been reported. We identified four patients with type I diabetes mellitus and clinical findings suggestive of ulnar neuropathy in whom electrophysiologic testing revealed partial conduction block or abnormal temporal dispersion within the forearm segment of the ulnar nerve. Although evidence for a mild underlying polyneuropathy was present in three patients, the ulnar nerve abnormalities were disproportionately severe. In all cases, a Martin-Gruber anastomosis was excluded. Whether this lesion is due to an increased propensity to focal compression of the ulnar nerve within the humero-ulnar arcade or whether it represents a localized manifestation of the generalized polyneuropathy remains to be determined.- - - - - - - - - - ranking = 0.027161349280355keywords = compression (Clic here for more details about this article) |
6/8. ulnar nerve palsy at the elbow after surgical treatment for fractures of the olecranon.Despite close proximity of the fracture site to the nerve, ulnar nerve palsy after surgery for fracture of the olecranon is uncommon. We examined 18 cases of fracture of the olecranon treated surgically retrospectively to see if there were any characteristics common to 4 cases of ulnar nerve palsy. Three cases of palsy with a comminuted fracture had fair or poor reduction as revealed by both the lateral and anteroposterior radiographs taken at the time of surgery. The other case, with little displacement of the fragment, had osteoarthritic changes at the medial side of the elbow. The mechanism of development of ulnar nerve palsy is considered to be multifactorial. However, it should be noted that evaluation of reduction of the fracture, not only on a lateral radiograph but also on an anteroposterior radiograph at the time of surgery, is important to prevent the ulnar nerve from being jeopardized.- - - - - - - - - - ranking = 1.125keywords = fracture (Clic here for more details about this article) |
7/8. Delayed ulnar neuropathy at the wrist following open carpal tunnel release.Open carpal tunnel release is a common and successful treatment of median neuropathy at the wrist (carpal tunnel syndrome). We report a case of delayed ulnar neuropathy at the wrist with onset 2 months after open carpal tunnel release. Clinical findings, electrophysiological studies, magnetic resonance imaging, and surgical exploration demonstrated ulnar nerve compression at Guyon's canal resulting from translocation of the carpal tunnel contents. To our knowledge, this is an unreported complication of open carpal tunnel release that merits wide appreciation.- - - - - - - - - - ranking = 0.013580674640177keywords = compression (Clic here for more details about this article) |
8/8. Ulnar tunnel syndrome due to anatomical variant of the ulnar artery.We report a case of ulnar tunnel syndrome due to an anatomical variant branch of the ulnar artery. Anatomical variants can cause compression not visible on imaging and need to be considered for successful surgical decompression.- - - - - - - - - - ranking = 0.027161349280355keywords = compression (Clic here for more details about this article) |