title: The canine trochanteric fossa: a radiographic and anatomic study.
abstract: Radiographic features of the region of the trochanteric fossa were evaluated bilaterally on 175 ventrodorsal radiographs of canine hip joints and findings were compared to anatomic specimens. The fossa showed a variable radiographic appearance, which was affected by positioning and anatomic diversity. On a small number of radiographs (n = 12), the trochanteric fossa was clearly defined as a circular area of radiopacity surrounded by a radiolucent halo. This appearance was significantly influenced by medial rotation of the femur (P < 0.001). On some anatomic specimens an irregular protuberance representing the site of attachment of the gemelli, internal and external obturator muscles was seen within the fossa, surrounded by a variable number of small openings, which were thought to be nutrient foramina. Dissection identified a small number of minor branches of the medial circumflex femoral artery entering these.
authors.affiliation: Clinic of Radiology, University of Veterinary Medicine, Vienna, Austria.
authors.forename: E M
authors.initials: EM
authors.lastname: Frame
authors.forename: S
authors.initials: S
authors.lastname: Breit
authors.forename: E
authors.initials: E
authors.lastname: Mayrhofer
mesh_terms: D000818:Animals; D004285:Dogs / Q000033:anatomy & histology*; D005260:Female; D005269:Femur / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D006253:Haversian System / Q000000981:diagnostic imaging; D006619:Hip Dysplasia, Canine / Q000000981:diagnostic imaging; D006621:Hip Joint / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D008297:Male; D011859:Radiography