Heterotopic ossification associated with myelopathy following cervical disc prosthesis implantation |
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| Affiliation: | 1. Neurosurgery, Klinik Beau-Site, and Salemspital, Schänzlihalde 11, 3000 Bern 25, Switzerland;2. Neurosurgeon FMH, Private Practice Spine Surgery, 3115 Bern-Gerzensee, Switzerland;1. Department of Neurosurgery, Rush University Medical Center, 1725 W. Harrison St., Suite 855, Chicago, IL 60612, USA;2. Department of Pathology, Rush University Medical Center, Chicago, IL, USA;1. Department of Anatomic Pathology, L25, Cleveland Clinic, 9500 Euclid Avenue, OH 44195, USA;2. Center for Pediatric Neurology, Cleveland Clinic, OH, USA;1. Ophthalmology, NDMVP Samaj’s Medical College, Nasik, India;2. Rural Medical College, Pravara Institute of Medical Sciences, Loni, MH 413736, India;3. Ophthalmology, Acharya Vinoba Bhave Rural Hospital, Sawangi, India;4. The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA;1. Department of Neurosurgery, The Johns Hopkins University School of Medicine, 600 North Wolfe Street, Meyer 5-185, Baltimore, MD 21287, USA;2. Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA |
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| Abstract: | This case report presents a 37-year-old man with clinical signs of myelopathy almost 9 years after implantation of a Bryan disc prosthesis (Medtronic Sofamor Danek, Memphis, TN, USA) for C5/C6 soft disc herniation. As demonstrated on MRI and CT scan, spinal cord compression was caused by bony spurs due to heterotopic ossification posterior to the still moving prosthesis. The device, as well as the ectopic bone deposits, had to be removed because of myelopathy and its imminent aggravation. Conversion to anterior spondylodesis was performed. |
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| Keywords: | Bryan prosthesis Cervical spine Heterotopic ossification Myelopathy Prosthesis removal Spondylodesis |
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