Histological evaluation of a peripheral nerve is often the final diagnostic work-up for a neuropathy of unknown origin, and a distal sensory nerve is usually biopsied. Here, we report the case of a female patient with painful unilateral neuropathy in the upper arm. According to the histological evaluation of the pronator teres motor branch, vasculitis seemed to be the most probable cause of the...

We describe a patient who complained of jerking of the right forearm on writing. Active pronation of his arm produced several beats of pronation/supination tremor. A burst of tremor also could be elicited by tendon taps to the volar surface of the wrist, to the finger extensors, and to pectoralis major, and by forcible supination of the wrist delivered by a torque motor. The subject's writing d...

Background: Neck roots lesion is one of the reasons for cervical and arm pain. A detailed patient evaluation could improve diagnose, reduce imaging requests, and speedy treatment of cervical pain. We tried to estimate the utility of pronator teres reflex in C6 and C7 roots irritation. Methods: Present study is composed of 118 participants including 56 with C6 and C7 lesion and 62 normal contro...

Previous work has demonstrated that the flexor pronator muscles of the arm (Flexor Digitorum Superficialis, Flexor Carpi Radialis, Flexor Carpi Ulnaris, and Pronator Teres) are primary contributors to varus torques that counter applied valgus torques [3, 5]. These muscles originate on the ulnar side of the distal humerus and have been shown to be highly active during pitching [4]. Additionally,...

In 1921 Sir Robert Jones described his technique of tendon transference for cases of irreparable damage of the radial nerve. In the original Jones’s technique and its several modifications (Billington 1922, Luckey and McPherson 1947, Scuderi 1949) the pronator teres is transferred to the two radial wrist extensors. This leads to ugly radial deviation on attempted dorsifiexion of the wrist (Fig....

The anterior interosseous nerve syndrome involves paralysis of the flexor pollicis longus, flexor digitorum profundus of the index and long fingers, and the pronator quadratus. We have encountered 33 cases of an incomplete syndrome in which only the flexor pollicis longus or the flexor digitorum profundus of the index finger is either paretic or paralyzed. This entity must be distinguished from...

BACKGROUND Frequently using non-slanted computer mice will cause musculoskeletal discomfort and symptoms in forearms and shoulders. Ergonomic mice with different slanted angles may have various effects on forearm and shoulder muscle activity. METHODS All of the twelve subjects performed the same text-editing task with the five different slanted mice. The muscle activity of extensor carpi ulna...

A pronation deformity of the forearm following an obstetric brachial plexus injury causes functional and cosmetic disability. We evaluated the results of pronator teres transfer to correct their deformity in 14 children treated over a period of four years. The mean age at surgery was 7.6 years (5 to 15). The indication for surgery in each case was impairment of active supination in a forearm th...