A beaklike bony extension of the medial aspect of the greater sciatic notch: a radiographic appearance sexually influenced.
The bony pelvis provides more obvious sex differences than any other bone in the human skeleton. This study evaluates a bony extension of the medial aspect of the greater sciatic notch, which extends caudad to the arcuate line as seen on pelvic radiographs. A total of 2620 randomly selected supine pelvic radiographs (anteroposterior view) of adult females and males were reviewed. The subjects belonged to a central Anatolian population and their age ranged between 18 and 77 years in females and between 18 and 81 years in males. Only 22 (1.7%) of the 1337 female pelvic radiographs showed a bony extension, whereas 882 (68.8%) of the males had one. All these bony extensions were bilateral and symmetric. The results were statistically significant (P < 0.001). We assert that this radiographic appearance is a male characteristic.
Gazi Universitesi Tip Fakültesi Anatomi Anabilim Dali, Dekanlik Binasi Giris Kati, 06520-Besevler, Ankara, Turkey. ngulekon@med.gazi.edu.tr
I N
IN
Gülekon
H B
HB
Turgut
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010384:Pelvic Bones / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D011859:Radiography; D012727:Sex Characteristics