Vol 71, No 2 (2012)
Case report
Published online: 2012-05-30
Bony spurs projecting in the obturator foramen
Folia Morphol 2012;71(2):125-127.
Abstract
The obturator foramen is large oval aperture in males or irregularly triangular
aperture in females in the hipbone, situated anteroinferior to the acetabulum
between the pubis and ischium. The dry bone under study is a male left sided
hipbone. It contains the obturator groove through which the obturator nerve
and vessels pass. During analysis of hipbones in the osteology laboratory of
CSM Medical University Lucknow, UP, India, a hipbone was found in which
bony spurs or exostoses were projecting from the margins into the obturator
foramen. These bony projections in the obturator foramen constitute a new
anatomical variant in the hipbone, as they have not been reported before.
These bony spurs may impinge on the obturator nerve and vessels causing
neurovascular complications and also trauma to the soft tissues during biomechanical
movements. In addition, these bony spurs may cause spasms of the
obturator internus and externus muscles, causing groin pain. These bony projections
may also lead to misinterpretation of radiographs. Thus, knowledge of
these bony spurs is of paramount importance to anatomists, surgeons, sport
physicians, and radiologists.
Keywords: hipbonebony spurobturator foramenpubisischium
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