title: Sex differences in the radial grooves in the first extensor compartment.
abstract: OBJECTIVE
  De Quervain tenosynovitis affects the first extensor compartment of the wrist and occurs more frequently in females. This high prevalence could not be explained by soft tissue. As the osseous anatomy has been mostly neglected, we aimed to compare the distal radius between the sexes.
  
  
  METHODS
  We evaluated the presence of a bony ridge on the floor of the first extensor compartment on CT images with multiplanar imaging.
  
  
  RESULTS
  We included 244 wrists (72 females, 172 males) in the study. A bony ridge was present in 58 (23.8 %) and absent in 186 (76.2 %) wrists. A ridge was present in 24 (33.3 %) wrists among females and 34 (19.8 %) wrists among males. A groove with a bony ridge was statistically associated with females.
  
  
  CONCLUSIONS
  We observed two tendon groove morphologies for the first extensor compartment. A groove with a bony ridge occurs more frequently in females. Further research is needed to clarify the relationship between the high frequency of a bony ridge and increased prevalence of de Quervain tenosynovitis in females.
authors.affiliation: Department of Anatomy, Istanbul Faculty of Medicine, Istanbul University, Millet Caddesi, Fatih, Istanbul, 34093, Turkey. iagurses@gmail.com.
authors.forename: Ilke A
authors.initials: IA
authors.lastname: Gurses
authors.affiliation: Department of Radiology, Istanbul Bakırköy Dr. Sadi Konuk Training and Research Hospital, Tevfik Sağlam Caddesi, Bakırköy, Istanbul, 34147, Turkey.
authors.forename: Rustu
authors.initials: R
authors.lastname: Turkay
authors.affiliation: Department of Radiology, Istanbul Bakırköy Dr. Sadi Konuk Training and Research Hospital, Tevfik Sağlam Caddesi, Bakırköy, Istanbul, 34147, Turkey.
authors.forename: Ercan
authors.initials: E
authors.lastname: Inci
authors.affiliation: Department of Radiology, Istanbul Bakırköy Dr. Sadi Konuk Training and Research Hospital, Tevfik Sağlam Caddesi, Bakırköy, Istanbul, 34147, Turkey.
authors.forename: Suna
authors.initials: S
authors.lastname: Ors
authors.affiliation: Department of Radiology, Istanbul Faculty of Medicine, Istanbul University, Millet Caddesi, Fatih, Istanbul, 34093, Turkey.
authors.forename: Yilmaz
authors.initials: Y
authors.lastname: Onal
authors.affiliation: Department of Biostatistics and Medical Informatics, Istanbul Faculty of Medicine, Istanbul University, Millet Caddesi, Fatih, Istanbul, 34093, Turkey.
authors.forename: Sevda
authors.initials: S
authors.lastname: Ozel
authors.affiliation: Department of Physical Medicine and Rehabilitation, Istanbul Bakırköy Dr. Sadi Konuk Training and Research Hospital, Tevfik Sağlam Caddesi, Bakırköy, Istanbul, 34147, Turkey.
authors.forename: Meltem
authors.initials: M
authors.lastname: Vural
mesh_terms: D000328:Adult; D053684:De Quervain Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011884:Radius / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D012727:Sex Characteristics; D013710:Tendons; D014057:Tomography, X-Ray Computed; D014953:Wrist / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D014955:Wrist Joint / Q000033:anatomy & histology* / Q000000981:diagnostic imaging
keywords: Bony ridge; De Quervain disease; First extensor compartment of the wrist; Osseous morphology; Radial grooves