title: Accessory tendon slip arising from the extensor carpi ulnaris and its importance for wrist pain.
abstract: OBJECTIVE
  The anatomical variations of the extensor carpi ulnaris (ECU) muscle can cause a functional impairment of the wrist and the little finger. The aim of this study was to determine the number, thickness and type of accessory tendon arising from the ECU.
  
  
  METHODS
  The presence of an accessory tendinous slip from the ECU muscle was examined in terms of gross appearance, size, shape, thickness, location and distribution in 54 cadaveric forearms.
  
  
  RESULTS
  The accessory slips arising from the ECU muscle were observed in three specimens (5.6%) (two left, one right). These slips ran to the ulnar side of the extensor digiti minimi tendon, originated from the head of the ECU, and ended on the extensor apparatus of the fifth finger. The mean width of the tendinous slips was 1.4±0.01 mm.
  
  
  CONCLUSIONS
  This anatomic variation of the ECU should be considered in diagnostic and surgical procedures involving the dorsum of the hand. Its clinical importance in the treatment of tenosynovitis and subluxation of joints is also stressed.
authors.affiliation: Department of Anatomy, Ege University, İzmir, Turkey. yeldapinar@gmail.com
authors.forename: Yelda
authors.initials: Y
authors.lastname: Pınar
authors.forename: Figen
authors.initials: F
authors.lastname: Gövsa
authors.forename: Okan
authors.initials: O
authors.lastname: Bilge
authors.forename: Servet
authors.initials: S
authors.lastname: Celik
mesh_terms: D000718:Anatomy, Regional / Q000379:methods; D002348:Carpal Bones / Q000033:anatomy & histology / Q000473:pathology; D004210:Dissection / Q000379:methods*; D005385:Fingers / Q000033:anatomy & histology / Q000473:pathology; D006801:Humans; D018482:Muscle, Skeletal / Q000033:anatomy & histology / Q000473:pathology; D013710:Tendons / Q000033:anatomy & histology / Q000473:pathology; D014457:Ulna / Q000033:anatomy & histology / Q000473:pathology; D014953:Wrist / Q000033:anatomy & histology / Q000473:pathology; D014955:Wrist Joint / Q000033:anatomy & histology