Posterior Perspective of a Male Fractured Sacrum

Description

Posterior bony landmarks of the male sacrum are rendered in anatomical position, with the median sacral crest in the midline and the paired lateral sacral crests flanking it. Four pairs of dorsal sacral foramina punctuate the posterior surface, arranged in vertical rows lateral to the fused spinous processes, and the inferior end tapers toward the sacral hiatus just superior to the coccygeal articulation. A transverse fracture line courses across the posterior sacral surface, interrupting the contour of the lateral sacral crest and crossing the region where the dorsal foramina transmit the posterior rami of S1 to S4. Sacral fractures are easy to underestimate on plain films, and a posterior view like this clarifies why. A transverse component across the posterior elements raises concern for higher energy patterns such as a U-shaped fracture with spinopelvic dissociation, where displacement can compromise the sacral canal or the exiting sacral nerve roots at the foramina, with downstream findings that include saddle anesthesia and bowel or bladder dysfunction. The highlighted involvement of the lateral sacral crest also cues the relationship to the sacral ala and the sacroiliac region, which matters when planning percutaneous iliosacral screw trajectories or a posterior tension band construct. Ideal for trauma teaching in gross anatomy and musculoskeletal modules, this artwork also fits orthopedic and neurosurgical lectures on pelvic ring injury classification (including Denis zones) and operative fixation planning around S1 and S2 corridors. It also works well for patient-facing handouts that need a clear, non-imaging explanation of a sacral fracture location. Anatomical accuracy verified by SciePro's Medical Advisory Board.