“…Since then, their implementation has been the subject of multiple communications, most of which reported good results[ 35 - 40 ]. However, pin placement can be technically difficult[ 22 , 37 ], especially in narrow pelvises[ 41 ], when the contour of the sacrum is not sufficiently smooth and regular or when osteoporotic disease is present in the bone[ 29 , 42 ]. Failure of the technique[ 14 , 32 , 41 , 43 ], development of a presacral hematoma, chronic pelvic pain, release, migration, and perianal extrusion of the implant[ 42 ], and the need for equipment that is not always routinely available in surgery[ 14 , 24 ] are complications and inconveniences associated with the implementation of this procedure.…”