A beaklike bony extension of the medial aspect of the greater sciatic notch: a radiographic appearance sexually influenced

Gulekon I., Turgut H.

SURGICAL AND RADIOLOGIC ANATOMY, cilt.24, sa.2, ss.117-119, 2002 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Konu: 2
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1007/s00276-002-0002-0
  • Sayfa Sayıları: ss.117-119


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.