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Follow-up Study on the Motion Range after Treatment of degenerative disc disease with the Bryan cervical disc Prosthesis

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Journal of Huazhong University of Science and Technology(Medical Sciences) 2007年第2期27卷 176-178页

作者：杨述华胡勇赵继军何贤峰刘勇许伟华杜靖远付德皓 Department of Orthopedics Union Hospital Tongji Medical College of Huazhong University of Science and Technology

This study examined effect of a new intervertebral cervical disc prosthesis in relieving the neurological symptoms and signs, improving the patients＇ ability to perform daily activities, reducing pain, and maintaining the stability and segmental motion. From December 2003 to October 2004, 12 patients, who had received 14 replacements of cervical artificial discs, were followed-up for 2 to 8 months （with a mean of 5.2 months）. Of them 5 had cervical spondylotic myelopathy and 7 had cervical disc herniation. The patients included 7 males and 5 females, with their age ranging from 35 to 62 y and a mean of 50.3 y. Single-level replacements were performed in 10 cases and 2 cases received two-level replacement. Operation time of the single-level surgery averaged 130±50 rain and the time of two-level surgery was 165±53 min on average （from skin incision to skin suturing）. Neurological or vascular complications during or after surgery was not observed. Japanese Orthopedic Association scores （JOA scores） increased from 8.6 to 15.8 on average. There was no prothesis subsidence or excursion. Replaced segments were stable and the range of motion was partially restored, being 4.68° （3.6°-6.1°） in flexion and extension position and 3.51 ° （2.5°-4.6°）, 3.42° （2.6°-4.3°） in left and right bending position. No obvious loss of physiological curvature was noted. CT or MRI follow-up showed that excursion was less than 1.5 mm） in 2 of 14 levels and between 1.5 mm and 3 mm） in 1 of 14 levels. No ossification in the replaced levels was observed. It is concluded that satisfactory short-term results were achieved in the 12 cases of artificial disc replacements. Different from anterior cervical discectomy and fusion, the replacement could achieve quick functional recovery and did not lead to the movement limitation of cervical vertebrae. At least a 5-years follow-up was needed to assess the long-term effect of the prosthesis on its neighboring segments.

关键词： cervical disc prothesis cervical disc herniation degenerative cervical disc disease

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Follow-up Results after Treatment of degenerative cervical disease with the Bryan disc:Single-and Multiple-level

Follow-up Results after Treatment of Degenerative cervical D...

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全国骨关节与风湿病暨第三届武汉国际骨科高峰论坛

作者： Shuhua Yang Weihua Xu Shunan Ye Department of Orthopedics Union HospitalTongji Medical CollegeHuazhong University of Science and Technology

＜正＞The prospective study was designed to investigate the clinical and radiographic effects of the new functional intervertebral cervical disc prosthesis in the treatment of patients with single-level and multiple-level degenerative disc disease of the cervical spine.86 patients had spinal arthroplasty with placement of the Bryan cervical artificial disc prosthesis during Dec 2003 to Oct 2010 in our hospital. There were 86 patients who underwent a single-level,two who underwent a two-level and one who underwent a three-level cervical ***（JOA score and Odom’s scale.） and radiological （X-ray of anteroposterior;lateral flexion/extension;left and right bending position） follow-up was *** radiographic parameters evaluated included the treated segments and the overall curvature of the cervical *** the patients were followed up from 8 months to 75 months（average 29 months）.The JOA score increased from（8.6±1.8） to（15.8±5.4）.According to the Odsm’s scale,all of 76 patients had excellent to good outcome（improvement by at least one grade,73/86 excellent,13/86 good）.The ROM recovered to the preoperative value during the follow up（54.3±8.4degrees）.The mean preoperative and postoperative ROM of the FSU was 12.3±2.5 and 14.4±2.0 degrees,*** treated segment ultimately showed preservation of movement when compared to preoperative levels. Result from CT or MRI showed position deflexion of the prosthesis metal endplates（＜1.5 mm） in 3/86 levels and（1.5～3 mm） in 5/86 *** prosthesis subsidence or excursion was *** using the Bryan disc appears to be safe and provided a favorable clinical and radiological outcome in our *** early and intermediate results are promising,long-term follow up studies are required to prove its efficacy and its ability to prevent adjacent segment disease.

关键词： cervical disc prothesis Bryan disc degenerative cervical disc disease

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Early and Intermediate Follow-up Results after Treatment of degenerative disc disease with the Bryan cervical disc Prosthesis:Single-and Multiple-level

Early and Intermediate Follow-up Results after Treatment of ...

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第一届全国脊髓损伤治疗与康复研讨会暨中国康复医学会脊柱脊髓损伤专业委员会脊髓损伤与康复学组成立会议

作者： Shuhua Yang,Xinghuo Wu,Yong Hu,Jin Li,Guohui Liu,Weihua Xu,Cao Yang,Shunan Ye Department of Orthopedics,Union Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,China 430022

The prospective study was designed to investigate the clinical and radiographic effects of the new functional intervertebral cervical disc prosthesis in the treatment of patients with single-level and multiple-level degenerative disc disease of the cervical *** patients(23 discs) had spinal arthroplasty with placement of the Bryan cervical artificial disc prosthesis during Dec 2003 to Oct 2006 in our *** were 16 patients who underwent a single-level,two who underwent a two-level and one who underwent a three-level cervical ***(JOA score and Odom’s scale.) and radiological(X-ray of anteroposterior;lateral flexion/extension;left and right bending position) follow-up was *** radiographic parameters evaluated included the treated segments and the overall curvature of the cervical spine. All the patients were followed up from 8 months to 75 months(average 29 months).The JOA score increased from(8.6±1.8) to(15.8±5.4).According to the Odsm’s scale,all of 19 patients(23 levels) had excellent to good outcome(improvement by at least one grade,13/19 excellent,6/19 good).The ROM recovered to the preoperative value during the follow up(54.3±8.4degrees).The mean preoperative and postoperative ROM of the FSU was 12.3±2.5 and 14.4±2.0 degrees,*** treated segment ultimately showed preservation of movement when compared to preoperative *** from CT or MRI showed position deflexion of the prosthesis metal endplates(disc appears to be safe and provided a favorable clinical and radiological outcome in our *** early and intermediate results are promising,long-term follow up studies are required to prove its efficacy and its ability to prevent adjacent segment disease.

关键词： cervical disc prothesis Bryan disc degenerative cervical disc disease

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