|Sagittal Alignment Comparison of Bryan Disc Arthroplasty With ProDisc-C Arthroplasty A Prospective, Randomized Controlled Clinical Trial|
|Zhao Yanbin; Sun Yu; Chen Zhongqiang; Liu Zhongjun|
|关键词||Cervical Disc Arthroplasty Fsu Bryan Disc Prosthesis Prodisc-c Prosthesis|
|刊名||JOURNAL OF SPINAL DISORDERS & TECHNIQUES|
|WOS标题词||Science & Technology|
|类目[WOS]||Clinical Neurology ; Orthopedics|
|研究领域[WOS]||Neurosciences & Neurology ; Orthopedics|
|关键词[WOS]||CERVICAL ARTHROPLASTY ; NECK PAIN ; FUSION ; REPLACEMENT ; MALALIGNMENT ; PROSTHESIS ; DISKECTOMY ; MYELOPATHY ; ADJACENT ; MOTION|
Study Design: A prospective, randomized study of the radiographic outcomes in patients undergoing single-level cervical arthroplasty with Bryan disc and ProDisc-C prosthesis.
Objective: The purpose of this trial was to compare the alignment changes of Bryan disc arthroplasty (modified techniques) with ProDisc-C arthroplasty.
Summary of Background Data: Aggravation of kyphosis is the known challenge after Bryan disc arthroplasty. Both Bryan disc arthroplasty with modified techniques and ProDisc-C arthroplasty were reported to avoid the postoperative local kyphosis. There have been no studies comparing the alignment changes after Bryan disc arthroplasty with ProDisc-C arthroplasty.
Methods: We conducted a randomized controlled clinical trial enrolling patients with cervical disc disease. Ultimately 20 patients received Bryan disc arthroplasty with modified surgical techniques and 26 patients received ProDisc-C arthroplasty. Functional spinal unit (FSU) and overall cervical alignment (Cobb angle of C2/7) were compared at final follow-up.
Results: (1) FSU angle: the FSU angle was maintained for the Bryan disc group (from 0.8 to 0.6 degrees) without statistical significance; the FSU angle increased 2.9 degrees for the ProDisc-C group (from -0.3 to 2.6 degrees) with statistical significance. (2) Overall alignment: the overall alignments did not change for both Bryan disc and ProDisc-C groups.
Conclusions: Bryan disc arthroplasty with modified techniques can maintain the lordosis of FSU, whereas ProDisc-C arthroplasty can restore the lordosis of FSU. For the patients with preoperative FSU kyphosis, ProDisc-C arthroplasty may be a better choice to restore the lordosis.
|作者单位||Peking Univ, Hosp 3, Dept Orthoped Surg, Beijing 100191, Peoples R China|
|Zhao Yanbin,Sun Yu,Chen Zhongqiang,et al. Sagittal Alignment Comparison of Bryan Disc Arthroplasty With ProDisc-C Arthroplasty A Prospective, Randomized Controlled Clinical Trial[J]. JOURNAL OF SPINAL DISORDERS & TECHNIQUES,2011,24(6):381-385.|
|APA||Zhao Yanbin,Sun Yu,Chen Zhongqiang,&Liu Zhongjun.(2011).Sagittal Alignment Comparison of Bryan Disc Arthroplasty With ProDisc-C Arthroplasty A Prospective, Randomized Controlled Clinical Trial.JOURNAL OF SPINAL DISORDERS & TECHNIQUES,24(6),381-385.|
|MLA||Zhao Yanbin,et al."Sagittal Alignment Comparison of Bryan Disc Arthroplasty With ProDisc-C Arthroplasty A Prospective, Randomized Controlled Clinical Trial".JOURNAL OF SPINAL DISORDERS & TECHNIQUES 24.6(2011):381-385.|