Dislocation or subluxation of the extensor carpi ulnaris tendon, is one of the differential diagnoses, to consider, the existence of pain in the ulnar side of the wrist, is rare isolated injury, so the diagnosis may go undetected with frequency. The injury occurs, during a hipersupination forearm, palmar flexion and ulnar deviation of the wrist, the patient showing the symptoms, after the reduction of the tendon with pronation, pain that can become very disabling, decreasing the pronosupination of the wrist, and decrease of strength. Due to its mechanism of production and onset of symptoms, diagnosis is clinical and tests are often normal. Tendon dislocation, occurs just, before the break or nosinsertion, your own pods osteofibrosa or deep layer of the sixth extensor compartment, although the annular ligament dorsal or extensor retinaculum of the surface layer, remains intact. Therefore, treatment must be surgical reconstruction in this case osteofibrosa, obtaining satisfactory results.
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Tendinopatias de la mano anir 1. Clin Occup Environ Med. J Am Acad Orthop Surg. J Hand Ther. J Hand Surg. AmiloidosisLabores de Dupuytren hombro Enf. The American Journal of Sports Medicine.
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Músculos interóseos dorsales de la mano
The objective of this study was to evaluate the effects of a wrist extensor muscles fatigue protocol at the handgrip and lateral pinch strength through dynamometry and surface electromyography EMG. Forty male individuals were divided into two groups: handgrip and lateral pinch group. The volunteers performed hand grip and lateral pinch with a dynamometer. Surface EMG was performed by both groups to analyze the behavior of median frequency MF during a fatigue protocol. The muscles extensor carpi radialis longus and brevis, extensor carpi ulnaris, extensor digitorum and flexor digitorum superficialis were analyzed. The strength and EMG evaluations were carried out before and after the fatigue protocol in both groups. The fatigue protocol was effective on hand grip strength reduction
Correspondence to:. SUMMARY : Anatomical variations of abductor pollicis longus and extensor pollicis brevis are important in clinical assessment of diseased and traumatized hand. The present case reports an unusual fusion of muscle bellies of abductor pollicis longus and extensor pollicis brevis with two separate tendons of insertion, the medial tendon inserted into the base of first metacarpal and the lateral tendon into the abductor pollicis brevis muscle. Knowledge of such anatomical variations is of utmost importance in the management of De Quervain's disease and reconstructive surgeries of hand.