Fig 1. Prevertebroplasty MR imaging (A) and intraoperative fluoroscopic images (B and C) of the treated level in a patient with an intraosseous cleft. T2-weighted (repetition time [TR]/echo time [TE], 2800/102 fast spin-echo with fat-saturation) MR (A) demonstrates acute compression of L2 in this 82-year-old male patient. The arrow indicates a fluid-filled cleft within the fractured vertebra. The lateral (B) fluoroscopic image shows filling of the cleft in the anterior portion of the vertebral body with little trabecular pattern to the implanted cement. A more typical trabecular filling pattern is seen in the posterior aspect of the treated vertebral body on the lateral projection.