Where is the arcade of Struthers?

According to the standard anatomic definition, the arcade of Struthers is a thin fibrous band that usually extends from the medial head of the triceps to the medial intermuscular septum. It is often said to be about 6-10 cm proximal to the medial epicondyle.

What is Guyon’s Syndrome?

Guyon’s canal syndrome refers to compression of the ulnar nerve while it passes from the wrist into the hand through a space called the ulnar tunnel or Guyon’s canal. Guyon’s canal syndrome is also called ulnar tunnel syndrome or handlebar palsy.

What is Osbornes ligament?

Osborne’s ligament is a transverse fibrous band as the fascial connection between the 2 heads of the flexor carpi ulnaris that forms the roof of the cubital tunnel. Osborne’s ligament can be used in ulnar nerve transposition to create a broad based, smooth-gliding sling for tension-free excursion of the ulnar nerve.

Where is the arcade of Frohse?

supinator muscle
Arcade of Frohse, sometimes called the supinator arch, is the most superior part of the superficial layer of the supinator muscle, and is a fibrous arch over the posterior interosseous nerve. Posterior view of the supinator. (Deep branch of radial nerve labeled at upper right and lower right.

What is Anconeus Epitrochlearis?

The anconeus epitrochlearis is a muscle variant sometimes present at the elbow. It is present in up to 34% of individuals and has been implicated in some cases of cubital tunnel syndrome. We report an unusual variant of this muscle with additional proximal attachments in the arm.

Why does claw hand occur?

Claw hand deformity is a condition where your fingers are bent into a position that looks like a claw. It may affect all of your fingers or only some of them. The cause is usually related to damage to a major nerve that starts at the neck and controls the muscles in your hand and arm.

What is struther ligament?

Struthers’ ligament is a feature of human anatomy consisting of a band of connective tissue at the medial aspect of the distal humerus. It courses from the supracondylar process of the humerus (also known as avian spur) to the medial humeral epicondyle. It is not a constant ligament, and can be acquired or congenital.

What is the Saturday night palsy?

THE TERM Saturday night palsy has become synonymous with radial nerve compression in the arm resulting from direct pressure against a firm object. It typically follows deep sleep on the arm, often after alcohol intoxication. The commonly accepted origin of the phrase is the association of Saturday night with carousing.

What is claw finger?

Why is it called arcade of Frohse?

The arcade of Frohse is a site of interosseous posterior nerve entrapment, and is believed to play a role in causing progressive paralysis of the posterior interosseous nerve, both with and without injury. The arcade of Frohse was named after German anatomist, Fritz Frohse (1871-1916).

What is the arcade of Frohse?

Arcade of Frohse, sometimes called the supinator arch, is the most superior part of the superficial layer of the supinator muscle, and is a fibrous arch over the posterior interosseous nerve.

What is Osborne’s ligament?

Under the first definition, Osborne’s ligament is a band of fibrous tissue which connects the humeral and the ulnar heads of the FCU. It can be classified as being thin or thick and thought to be a separate structure from the aponeurosis of the FCU.

Is the arcade of Struthers constricted?

Immediately adjacent to this point, the arcade of Struthers was seen constricting the nerve. This band was released, decompressing the nerve (Figs. ​(Figs.22and ​and3).3). An indentation of the nerve and swelling adjacent to this point were present.

Does the ulnar nerve pass under the arcade of Struthers?

In 70–80% of individuals, the ulnar nerve passes under the arcade. Although electromyography (EMG) demonstrates abnormal nerve conduction, ultrasound (US) imaging can demonstrate swelling adjacent to compression sites.4Herein, we describe a patient with ulnar neuropathy localized preoperatively to the arcade of Struthers by US imaging and EMG.