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Oral Presentations

2010 AANS Annual Meeting Philadelphia, Pennsylvania May 1–5, 2010

database to identify patients who had undergone noncontiguous anterior cervical fusion. Baseline characteristics and postoperative variables were evaluated. Primary outcome was the presence of symptomatic degeneration at the intermediate segment. Results: Of 2107 total cases, we identified 22 cases of noncontiguous anterior cervical fusion. No patient was found to have symptomatic ASD at the intervening level during the follow-up period. Postoperatively, of 17 patients, neurological improvement was seen in 13 and no change in 4. Overall symptomatic outcome as

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remains stable comparing 3 and 12-month results. Neurosurg Focus Neurosurgical Focus FOC 1092-0684 American Association of Neurological Surgeons 2014.3.FOC-DSPNABSTRACTS Abstract Outcomes Award 103. Two Year Prospective, Multicenter Analysis of Consecutive Adult Spinal Deformity (ASD) Patients Demonstrates Higher Fusion Grade, Lower Implant Failures and Greater Improvement in SRS-22r Scores for Patients Treated with Recombinant Human Bone Morpho Kai-Ming G. Fu , MD PhD , Eric Klineberg , MD , Shay

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Chun-Hao Wang, Peng-Yuan Chang, Hsuan-Kan Chang, Jau-Ching Wu, Wen-Cheng Huang, Li-Yu Fay, Tsung-Hsi Tu, Ching-Lan Wu and Henrich Cheng

). Although the radiopaque portions of both devices look similar on lateral radiographs, the CAD provides no spring force at the most-anterior (ventral) aspect of the device. Furthermore, the authors state in their conclusion that the potential advantages of the DCI over anterior cervical discectomy and fusion (ACDF) and cervical total disc replacement include minimizing “the development of ASD [adjacent-segment disease].” We concur with the authors that the presence of only 1 case of symptomatic ASD at 24 months after implantation of a DCI is encouraging, compared to

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Chao-Hung Kuo, Peng-Yuan Chang, Jau-Ching Wu, Hsuan-Kan Chang, Li-Yu Fay, Tsung-Hsi Tu, Henrich Cheng and Wen-Cheng Huang

-Segment Disease The incidences of adjacent-segment disease (ASD) were not significantly different between the DDS and MI-TLIF groups (23.4% vs 31.8%, p = 0.62). After a meticulous review of postoperative image evaluations, 17 22 patients (15 and 7 patients from the DDS and MI-TLIF groups, respectively) were found to have radiological evidence of ASD (e.g., loss of disc height, disc degeneration/herniation, instability, listhesis, and hypertrophic facet arthritis) during the study period ( Table 3 ). Although none of the patients were symptomatic or have had any clinical

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Li-Yu Fay, Peng-Yuan Chang, Jau-Ching Wu, Wen-Cheng Huang, Chun-Hao Wang, Tzu-Yun Tsai, Tsung-Hsi Tu, Hsuan-Kan Chang, Ching-Lan Wu and Henrich Cheng

40 17 (73.9) 23 (48.9)   Yes 30 6 (26.1) 24 (51.1) * Indicates statistical significance, p < 0.05. There were 3 patients (4.3%) who had partial facet resection (medial one-third to decompress the lateral recess) scrutinized by comparison of the pre- and postoperative CT scans. Furthermore, there was no correlation between partial resection and rate of facet arthrodesis (p = 0.435) ( Table 4 ). TABLE 4. Correlation between facet resection, ROM, and ASD and facet arthrodesis * Characteristic Facet Arthrodesis p

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, MD, PhD 3 2017 42 3 Peripheral Nerve A10 A11 Copyright held by the American Association of Neurological Surgeons. You may not sell, republish, or systematically distribute any published materials without written permission from JNSPG. 2017 Introduction: The purpose of this study is to evaluate the efficacy and safety of cervical total disc replacement (TDR) for symptomatic adjacent segment degeneration (ASD) with previous anterior cervical discectomy and fusion (ACDF) was done, compared to ACDF in the treatment of cervical ASD

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Yu-Wen Cheng, Peng-Yuan Chang, Jau-Ching Wu, Chih-Chang Chang, Li-Yu Fay, Tsung-Hsi Tu, Wen-Cheng Huang and Henrich Cheng

standard posterior lumbar interbody fusion (PLIF) for L5–S1 spondylosis. They concluded that the incidence of adjacent-segment disease (ASD) 4 years after surgery was similar in patients treated with PDS and those treated with PLIF. Also, the authors found pre-existing disc degeneration at L4–5 to be an independent risk factor for ASD detected radiographically later on. Thus, the authors made the statement that PDS is feasible for L5–S1 spondylosis and pre-existing ASD does not necessitate any additional treatment, only observation, in the absence of clinical symptoms or

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Peng-Yuan Chang, Hsuan-Kan Chang, Jau-Ching Wu, Wen-Cheng Huang, Li-Yu Fay, Tsung-Hsi Tu, Ching-Lan Wu and Henrich Cheng

, but has also been associated with increased risks for CSM, spinal cord injury (SCI), transient neurapraxia, SCI in athletes, and adjacent-segment diseases (ASDs) after anterior cervical discectomy and fusion (ACDF). 2 , 3 , 11 , 17 , 25 , 27–31 , 33 , 35 , 36 The application of cervical disc arthroplasty (CDA) in the treatment of cervical degenerative disc diseases (DDDs) has been proven by multiple FDA Investigational Device Exemption (IDE) trials to be a safe and effective alternative to conventional fusion surgery, i.e., ACDF. However, there have been scarce data

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Chao-Hung Kuo, Wen-Cheng Huang, Jau-Ching Wu, Tsung-Hsi Tu, Li-Yu Fay, Ching-Lan Wu and Henrich Cheng

-grade spondylolisthesis. 3 , 11–13 However, few reports have addressed the true incidence of adjacent-segment degeneration (ASD) after these spinal surgeries. The pathological process observed at the spinal disc adjacent to the level that was treated with arthrodesis is regarded as ASD. Owing to advances in image technology, asymptomatic ASD can be identified by abnormal findings on radiological examinations; these findings include disc degeneration, segmental instability, or spinal stenosis and are termed “radiological ASD.” These radiological ASDs can be completely free of symptoms

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Tsung-Hsi Tu, Chao-Hung Kuo, Wen-Cheng Huang, Li-Yu Fay, Henrich Cheng and Jau-Ching Wu

A nterior cervical discectomy and fusion (ACDF) has been the standard surgical treatment for patients with cervical disc herniation or spondylosis causing intractable radiculopathy or myelopathy. Although symptom relief has been highly satisfactory after ACDF, there has also been adjacent-segment degeneration (ASD) that requires a secondary ACDF or other reoperation. 32 These cases of ASD may be attributable to increased load and compensatory motion after arthrodesis in ACDF. Cervical disc arthroplasty (CDA) was therefore designed to preserve segmental mobility