Christian Kandlbauer has since been able to wear the prosthesis for everyday use; he can independently drive his car and go to work. He is obviously delighted; with a myo-controlled arm on the right side and a cosmetic arm on the left he would be dependent on other people for pretty much everything and would not be able to lead a normal life. Now, he pretty much can. Dr. Egger points out that Christian’s prosthesis has three active joints, which is enough for him to perform most common tasks. Interesting is that on the Otto Bock website, Christian Kandlbauer is quoted as saying that the arm “feels like it is part of the body – in contrast to his right- arm myo-controlled prosthesis that is. This is important, confirms Dr. Egger. “What happens when you have had a limb amputated is that you still have a memory of that limb. This is what we researchers call phantom-limb. To use the mind-controlled prosthesis you need to exercise that memory to get you brain to send signals representing the movement of the phantom limb.”
Dr. Egger explains that the idea for mind-controlled prosthetics came from one of Otto Bock’s research partners in the US. Otto Bock being a privately owned, independent family business, there was time and money to start up a long-term project with the ultimate objective of creating a state-of-the-art prosthetic that could mimic nature. “Nature is wonderful and we will never be that good; but we want to try to make prosthetics that come pretty close,” says Dr. Egger.
disease treated with a Prestige I cervical disc replacement ..
Conclusion Prestige LP cervical disc replacement is a feasible alternative to ACDF for patients with persistently symptomatic cervical disc disease and matching the inclusion criteria.
The ROTAIO Cervical Disc Prosthesis ..
Technological advances have made more options available for surgical intervention in spinal disorders. From spinal fusion to artificial disc implantation, these advancements have brought great benefits, allowing preservation of spinal motion and flexibility after intervertebral discectomy. Yet the use of artificial discs as a treatment for congenital spinal disorders has been documented in only a handful of publications. We report a case where a Bryan artificial cervical disc arthroplasty was used to maintain and preserve the mobility and function of the cervical motion segments adjacent to fused vertebral lesions in a 33-year-old woman with Klippel-Feil syndrome who presented with chronic neck pain and signs of early myelopathy. The rationales for using the Bryan disc prosthesis system in patients with Klippel-Feil syndrome and its advantages over conventional surgical interventions are discussed.
Overview of cervical disc prosthesis
OBJECT: Spinal arthroplasty is becoming more widely performed in the treatment of degenerative cervical disc disease. Although this new technology may offer benefits over arthrodesis, it also requires that the surgeon acquire new operative techniques, and new potential complications are introduced. To determine the incidence and distribution of perioperative complications, the authors analyzed their early data obtained in a series of patients treated with the Bryan Cervical Disc prosthesis.
METHODS: The authors prospectively recorded operative data, complications, and clinical and radiographic outcome data in all patients treated with Bryan prosthesis-based arthroplasty at two tertiary care centers since 2001. Patients underwent standard anterior cervical discectomy followed by one- to three-level arthroplasty. Ninety-six discs were implanted in 74 patients. The perioperative complication rate was 6.2% per treated level. In one patient a retropharyngeal hematoma developed, requiring evacuation. Neurological worsening occurred in three patients. Intraoperative migration of the prosthesis was observed in one two-level case, whereas delayed migration occurred in one patient with postoperative segmental kyphosis. In another patient with severe postoperative segmental kyphosis, revision was required with a customized lordotic prosthesis. Heterotopic ossification and spontaneous fusion occurred in two cases; motion was preserved in the remaining 94 prostheses. Partial dislocation of the prosthesis in extension occurred in one patient with preoperative segmental hypermobility, the first reported failure of a Bryan prosthesis. Twenty-five percent of patients reported neck and shoulder pain during the late follow-up period. There was a trend toward increased kyphosis of the C2-7 curvature postoperatively.
CONCLUSIONS: The Bryan prosthesis was effective in maintaining spinal motion. Major perioperative and device-related complications were infrequent.