Common variations of the radial writs extensors.
An anatomical study of the extensor carpi radialis longus (ECRL) and brevis (ECRB) in 173 upper limbs demonstrated abnormalities in 50%. Interconnecting tendons between the longus and brevis were found in 35% of limbs, the most common variation (26%) being a tendon arising proximally from the ECRL and inserting distally with the ECRB. In 42 limbs (24%) an extra muscle (the extensor carpi radialis intermedius) was present; many were large enough to activate a tendon transfer. Two case reports illustrate the use of extra muscles in the surgical rehabilitation of patients with paralytic disorders.
D000328:Adult; D005260:Female; D005542:Forearm / Q000033:anatomy & histology / Q000601:surgery; D006801:Humans; D008297:Male; D009132:Muscles / Q000033:anatomy & histology* / Q000601:surgery; D010243:Paralysis / Q000601:surgery*; D013709:Tendon Transfer; D013710:Tendons / Q000033:anatomy & histology; D014953:Wrist / Q000033:anatomy & histology* / Q000601:surgery