摘要
目的观察不同手术时期Bryan人工椎间盘置换术后置换节段脊柱功能单位(functional spine unit,FSU)曲度变化情况。方法随访2003年12月～2007年12月接受单节段Bryan人工椎间盘置换术的患者,在侧位X线片上测量FSU角度变化。结果 60例患者获得随访,随访3～69个月,平均32个月,手术节段包括C3/C4节段2例,C4/C5节段14例,C5/C6节段41例,C6/C7节段3例。术前FSU平均曲度为0.3°,末次随访时为-0.5°(P<0.05)。根据手术日期将全部病例分成早期(2003～2004年)、中期(2005年)和后期(2006～2007年)3组,统计分析发现早期病例随访时FSU后凸平均增加1.6°,后期病例FSU后凸平均增加仅0.1°,2组的FSU角度变化差异有统计学意义(P<0.05)。结论 Bryan人工颈椎椎间盘置换术术后FSU后凸主要发生在早期病例,通过经验的积累和手术技术的改进可以避免术后FSU后凸。
Objective To investigate the angle changes of functional spine unit（FSU） at operated segment after single-level Bryan disc replacement at different time points after operation.Methods A total of 60 patients receiving single-level Bryan disc replacement between December 2003 and December 2007 were enrolled in this study.The changes of FSU angle were measured and compared on lateral X-ray films.Results All 60 patients were followed up for an average of 32 months（ranging 3-69 months）.The levels of surgery included C3/C4（2 cases）,C4/C5（14 cases）,C5/C6（41 cases） and C6/C7（3 cases）.The mean FSU angle was 0.3° before the surgery,and-0.5° at the final follow-up,with statistically significant difference found between them（P〈0.05）.The patients were divided into three groups according the operation period： early stage group（2003-2004）,middle stage group（2005） and late stage group（2006-2007）.The average FSU kyphosis was increased by 1.6° after the operation in early stage group,but only by 0.1° in late stage group,and the difference had statistical significance（P〈0.05）.Conclusion FSU kyphosis mainly occurs in early stage after Bryan disc replacement.This complication could be avoided with surgical experience accumulation and surgical technique improvement.
出处
《脊柱外科杂志》
2011年第5期260-262,共3页
Journal of Spinal Surgery
关键词
颈椎
椎间盘
人工关节
关节成形术
置换
脊柱前凸
脊柱后凸
Cervical vertebrae
Intervertebral disk
Joint prosthesis
Arthroplasty
replacement
Lordosis
Kyphosis
