|Clinical and radiological outcomes of cervical disc arthroplasty: ten year follow-up study|
|Song, Qingpeng; He, Da; Han, Xiao; Zhang, Ning; Wang, Jinchao; Tian, Wei|
|关键词||Cervical disc arthroplasty Bryan cervical disc prosthesis Sagittal alignment Paravertebral ossification Adjacent segment degeneration|
|WOS标题词||Science & Technology|
|关键词[WOS]||PARAVERTEBRAL OSSIFICATION ; ARTIFICIAL DISC ; REPLACEMENT ; DEGENERATION ; PROSTHESIS ; FUSION|
Purpose Previous studies have demonstrated that cervical disc arthroplasty has favourable short- and medium-term clinical and radiological outcomes. However, long-term follow-up outcomes have rarely been reported. The purpose of this study was to evaluate the ten year follow-up clinical and radiological outcomes in patients who underwent Bryan cervical disc arthroplasty.
Methods Seventy-one patients who underwent single-level Bryan cervical disc arthroplasty with a minimum tenyear follow-up were included in the study. Japanese Orthopaedic Association (JOA) score, neck disability index (NDI), and Odom′s criteria were used to evaluate clinical outcomes. X-ray, CT, and MRI were used to evaluate the radiological outcomes.
Results At last follow-up, the JOA score and NDI improved significantly, and 65 patients (91.5%) had good or excellent outcomes according to Odom′s criteria. The range of motion (ROM) at operated level was 9.7 degrees pre-operatively and maintained to 8.6 degrees at last follow-up. The sagittal alignment of operated level was decreased from 2.1 degrees pre-operatively to 1.2 degrees at last follow-up (P < 0.01). The ROM and sagittal alignment of cervical spine had no significant change. At last follow-up, 16 patients (22.5%) developed segmental kyphosis, and 33 patients (46.5%) developed adjacent segment degeneration. Paravertebral ossification (PO) was observed in 66 patients (93.0%), and high-grade PO (grades III and IV) was observed in 25 patients (35.2%).
Conclusions The clinical and radiological outcomes of Bryan cervical disc arthroplasty over ten years follow-up are satisfying. However, the occurrence of high-grade PO restricted the ROM of operated level.
|作者单位||Peking Univ, Clin Coll 4, Beijing Jishuitan Hosp, Dept Spine Surg, 31 Xinjiekou East St, Beijing, Peoples R China|
|Song, Qingpeng,He, Da,Han, Xiao,et al. Clinical and radiological outcomes of cervical disc arthroplasty: ten year follow-up study[J]. INTERNATIONAL ORTHOPAEDICS,2018,42(10):2389-2396.|
|APA||Song, Qingpeng,He, Da,Han, Xiao,Zhang, Ning,Wang, Jinchao,&Tian, Wei.(2018).Clinical and radiological outcomes of cervical disc arthroplasty: ten year follow-up study.INTERNATIONAL ORTHOPAEDICS,42(10),2389-2396.|
|MLA||Song, Qingpeng,et al."Clinical and radiological outcomes of cervical disc arthroplasty: ten year follow-up study".INTERNATIONAL ORTHOPAEDICS 42.10(2018):2389-2396.|