title: The variations of peroneus digiti quinti muscle and its contribution to the extension of the fifth toe. A cadaveric study.
abstract: OBJECTIVE
  To investigate the origin, prevalence, and possible effects of peroneus digiti quinti muscle (PDQ) on the fifth toe, to find out the variations of PDQ by determining the relationship between peroneus brevis muscle (PB) and PDQ, and to reveal its importance for the applications in foot and ankle surgery.
  
  
  METHODS
  This study was conducted at the Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey between September 2013 and June 2014. The study was a prospective dissection of cadaveric lower limbs. Twenty-five amputated lower limbs were stored in the freezer at -15°C. The legs were dissected; prevalence and variations of peroneus digiti quinti were investigated.
  
  
  RESULTS
  Peroneus digiti quinti muscle was found in 8 (32%) of 25 dissected lower limbs. However, 2 different tendon extensions were found at 3 (37.5%) of 8, and 5 (62.5%) of them were determined to have a single tendon.
  
  
  CONCLUSIONS
  The incidence, dimensions, length, and insertions of peroneus digiti quinti are important in the evaluation and treatment of functional loss of the fifth toe, lateral foot deformities, and tendon problems behind the lateral malleolus of the ankle.
authors.affiliation: Department of Anatomy, Faculty of Medicine, Fatih University, Buyukcekmece, Istanbul, Turkey. E-mail. berrintugtag@hotmail.com.
authors.forename: Berin T
authors.initials: BT
authors.lastname: Demir
authors.forename: Yakup
authors.initials: Y
authors.lastname: Gümüşalan
authors.forename: Murat
authors.initials: M
authors.lastname: Üzel
authors.forename: Hüseyin B
authors.initials: HB
authors.lastname: Çevik
mesh_terms: D001344:Autopsy; D002102:Cadaver; D006801:Humans; D018482:Muscle, Skeletal / Q000473:pathology*; D014034:Toes / Q000473:pathology*