人工颈椎间盘置换术治疗颈椎病12例近期疗效分析

目的观察人工颈椎间盘置换术治疗颈椎病的短中期疗效。方法对人工颈椎间盘置换术12例（13个节段）患者随访术后假体的位置、有无异位骨化、置换节段的运动范围变化,并用JOA评分及术后Odom评级评价临床疗效。结果随访3～12个月（平均6.5个月）,患者的JOA评分由术前的平均8.35±1.10上升至术后末次随访时的15.88±0.73（P〈0.05）;Odom评级优良率达到91.7%。置换节段的运动范围变化：过屈过伸活动度由术前的8.09°±0.63°上升到术后12个月的8.95°±0.64°（P〈0.05）;左侧屈曲活动度术前为6.11°±0.53°,术后12个月为6.25°±0.54°;右侧屈曲活动度术前为6.10°±0.52°,术后12个月为6.13°±0.51°。手术前后两侧屈曲活度差异均无统计学意义（P〉0.05）。未发现假体松动或下沉及异位骨化。结论人工颈椎间盘置换术的短中期疗效是令人满意的。

Preliminary and Intermediate Follow-up Outcomes for Cervical Disc Replacement in the Treatment of Cervical Spondylopathy in 12 Cases

Objective To observe the short and intermediate-term clinical outcomes of porous coated motion（PCM） cervical prosthesis in the treatment of cervical spondylosis.Methods The 12（13 levels） patients who were suffered spondylotic myelopathy with PCM cervical prosthesis were treated.Evaluate the clinical outcome by comparing the JOA scores,the position of prosthesis,rotation of motion,the heterotopic ossification and Odom＇s scales.Results After the average 6.5 months（3~12 months） follow-up,the JOA scales raised from 8.35±1.10 preoperatively to 15.88±0.73 postoperatively（P0.05）.The percent of excellent outcome analysized by the Odom＇s scales is 91.7%.The range of motion for extension-flexion of treated cervical segment was 8.09°±0.63°preoperatively and 8.95°±0.64°postoperatively（P0.05）.The range of motion for left-sided flexion was from 6.11°±0.53°preoperatively to the 6.25°±0.54°postoperatively.For the right-sided flexion,was from 6.10°±0.52°preoperatively to the 6.13°±0.51°postoperatively（P0.05）.There was no occurrence of failures of prosthesis such as subsidence,loosening,or excursion.Heterotopic ossification was also absent.Conclusion The clinical outcomes for cervical disc replacement in the treatment of cervical spondylopathy are satisfied.