Anconeus Epitrochlearis Muscle as a Cause of Ulnar Nerve Compression at the Elbow Músculo anconeu epitroclear como causa de compressão do nervo ulnar no cotovelo
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Anconeus Epitrochlearis Muscle Causing Ulnar Neuropathy at the Elbow: Clinical and Neurophysiological Differential Diagnosis.
Ulnar neuropathy at the elbow is the second most frequent entrapment neuropathy and is considered idiopathic in most patients. However, several anatomic variations, including the anconeus epitrochlearis muscle, have been reported to cause ulnar nerve compression. The anconeus epitrochlearis muscle is a common anatomic variation, with a prevalence of up to 34%, but the clinical diagnosis of ulna...
متن کاملUlnar nerve palsy due to concomitant compression by the anconeus epitrochlearis muscle and a ganglion cyst.
Compression neuropathy of the ulnar nerve at the elbow is commonly caused by constriction at the fibrous cubital tunnel or an anatomical elbow deformity. Many uncommon causes of compression have been described, including Osborne’s band, ulnar nerve subluxation,1 anatomical confines of the cubital tunnel, elbow osteoarthritis, ganglion,2 prominent medial head of triceps,3 and an anconeus epitroc...
متن کاملUlnar neuropathy as a result of anconeus epitrochlearis.
After carpal tunnel syndrome, cubital tunnel syndrome is the second most common compression neuropathy in the upper extremity. Various sites of ulnar nerve compression at the elbow exist, with the most common being between the 2 heads of the flexor carpi ulnaris. Other potential sites include the arcade of Struthers, the space between Osborne's ligament and the medial ulnar collateral ligament,...
متن کاملUltrasound Diagnosis of Double Crush Syndrome of the Ulnar Nerve by the Anconeus Epitrochlearis and a Ganglion.
Double compression of the ulnar nerve, including Guyon's canal syndrome associated with cubital tunnel syndrome caused by the anconeus epitrochlearis muscle, is a very rare condition. We present a case of double crush syndrome of the ulnar nerve at the wrist and elbow in a 55-year-old man, as well as a brief review of the literature. Although electrodiagnostic findings were consistent with an u...
متن کاملThe cubital tunnel and ulnar neuropathy.
The anatomy of the cubital tunnel and its relationship to ulnar nerve compression is not well documented. In 27 cadaver elbows the proximal edge of the roof of the cubital tunnel was formed by a fibrous band that we call the cubital tunnel retinaculum (CTR). The band is about 4 mm wide, extending from the medial epicondyle to the olecranon, and perpendicular to the flexor carpi ulnaris aponeuro...
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