Harel Deutsch1. 1. Rush University Medical Center, 1725 W. Harrison St. #970, Chicago, IL 60612, USA. harel_deutsch@rush.edu
Abstract
BACKGROUND CONTEXT: Infuse [bone morphogenetic protein (BMP)] is increasingly used in spinal fusion surgery. PURPOSE: The authors report a rare complication of BMP use. STUDY DESIGN: This is a case report. PATIENT SAMPLE: A 55-year-old male underwent a thoracic T8 to the pelvis fusion for degenerative lumbar disc disease and pseudarthrosis at another institution. The procedure involved an anterior and posterior approach with the use of multiple units of BMP. METHODS: The patient presented to our institution with complaints of weight loss, pain, tenderness, and increasing solid growth in the left lower quadrant several months after his surgery. A computed tomography revealed ectopic bone growth in the retroperitoneal area and pelvis contiguous to the anterior lumbar exposure. RESULTS: The anterior wound was re-explored, and a large sheet of ectopic bone was removed from the retroperitoneal space. CONCLUSIONS: We report a rare case of extraspinal ectopic bone growth because of the use of multiple packages of BMP. Copyright (c) 2010 Elsevier Inc. All rights reserved.
BACKGROUND CONTEXT: Infuse [bone morphogenetic protein (BMP)] is increasingly used in spinal fusion surgery. PURPOSE: The authors report a rare complication of BMP use. STUDY DESIGN: This is a case report. PATIENT SAMPLE: A 55-year-old male underwent a thoracic T8 to the pelvis fusion for degenerative lumbar disc disease and pseudarthrosis at another institution. The procedure involved an anterior and posterior approach with the use of multiple units of BMP. METHODS: The patient presented to our institution with complaints of weight loss, pain, tenderness, and increasing solid growth in the left lower quadrant several months after his surgery. A computed tomography revealed ectopic bone growth in the retroperitoneal area and pelvis contiguous to the anterior lumbar exposure. RESULTS: The anterior wound was re-explored, and a large sheet of ectopic bone was removed from the retroperitoneal space. CONCLUSIONS: We report a rare case of extraspinal ectopic bone growth because of the use of multiple packages of BMP. Copyright (c) 2010 Elsevier Inc. All rights reserved.
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