Curative treatment of malignancies in the sacrum and lumbar spine frequently requires en-bloc spinopelvic resection. There is no standard classification of these procedures. We present a classification of these resections based on analysis of 45 consecutive cases of oncologic spinopelvic resections. This classification implies a surgical approach, staging algorithm, bony and soft tissue reconstruction, and functional outcomes following surgery. We reviewed oncologic staging, surgical resections, and reconstructions of 45 consecutive patients undergoing spinopelvic resection with curative intent. Mean follow-up of surviving patients was 38 months. Common themes in these cases were identified to formulate the surgical classification.Purpose
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