fig2

Figure 2. Medtronic UNiD preoperative planning for adult spinal deformity correction. (A) Representative preoperative radiographs and surgical plan generated using dedicated spine surgical planning software. Left and center panels show anteroposterior and lateral radiographs demonstrating the patient’s baseline alignment. The right panel illustrates the surgical plan, with proposed instrumentation for T9 to pelvis fusion; (B) Corresponding strategy table summarizing preoperative and planned spinopelvic parameters, with targeted corrections including SVA from 87 to 19 mm, PI-LL from 23° to 1°, and LL from -36° to -58°. The planned cage sizes and segmental corrections are imported from the Carlsmed Aprevo platform. SVA: Sagittal vertical axis; LLIF: lateral lumbar interbody fusion; ALIF: anterior lumbar interbody fusion; TK: thoracic kyphosis; TL: thoracolumbar.