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单节段ProDisc-C颈椎人工椎间盘置换术对颈椎曲度和活动度的影响 被引量:12

Cervical alignment and range of motion after single-level ProDisc-C replacement
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摘要 目的:观察单节段ProDisc-C颈椎人工椎间盘置换术后置换节段活动度和颈椎曲度变化情况,分析ProDisc-C人工椎间盘置换术的效果。方法:2006年6月~2008年9月对53例颈椎病患者行单节段前路减压、ProDisc-C人工椎间盘置换术,置换节段C3/47例,C4/510例,C5/627例,C6/79例。应用医学影像存储与传输系统(PACS)测量术前和末次随访时置换节段活动度(ROM)、置换节段脊柱功能单位(functional spinal unit,FSU)Cobb角和颈椎整体曲度(C2~C7Cobb角)。结果:随访3~36个月,平均13.8个月。术前置换节段ROM为8.6°±3.7°,末次随访时为9.7°±3.5°,有统计学差异(P<0.05);术前FSUCobb角(前凸为正值)为0.1°±4.8°,末次随访时为3.6°±4.5°,有统计学差异(P<0.05);术前颈椎整体曲度为7.0°±10.2°,末次随访时为8.0°±10.4°,无统计学差异(P>0.05)。结论:单节段ProDisc-C颈椎人工椎间盘置换术后置换节段活动度较术前增大,颈椎整体曲度无明显变化,FSU前凸增大,对于术前病变节段FSU生理前凸变小或轻度后凸的拟行颈椎人工椎间盘置换的患者可选择ProDisc-C假体。 Objective:To investigate the cervical alignment and range of motion(ROM) after single-level ProDisc-C replacement.Method:53 patients underwent single-level anterior cervical decompression and ProDisc-C replacement between June 2006 and September 2008.There were 7 cases of C3/4,10 cases of C4/5,27 cases of C5/6 and 9 cases of C6/7 involved respectively.Segmental ROM,angular variation at functional spinal unit(FSU),Cobb angle of lordosis from C2 to C7 were measured and compared on dynamic Xrays by picture archive communication system(PACS).Result:The follow-up averaged 13.8 months(range,336 months).The segmental ROM was 8.6°±3.7° and 9.7°±3.5° for baseline and final follow-up respectively with statistical significance(P0.05).The angular variation at FSU was 0.1°±4.8° and 3.6°±4.5° for baseline and final follow-up respectively with statistical significance(P0.05).The lordosis Cobb angle of C2-C7 was 7.0°±10.2° and 8.0°±10.4° for baseline and final follow-up respectively without statistical significance(P 0.05).Conclusion:After single-level ProDisc-C replacement,increase of segmental ROM,maintaining of cervical alignment as well as the increased FSU lordosis are evidenced.The ProDisc-C prosthesis is recommended for the candidates with decreased lordosis or slight FSU kyphosis.
出处 《中国脊柱脊髓杂志》 CAS CSCD 北大核心 2010年第8期677-680,共4页 Chinese Journal of Spine and Spinal Cord
关键词 人工椎间盘置换术 ProDisc-C 脊柱功能单位角度 颈椎曲度 颈椎活动度 Artificial disc replacement ProDisc-C Functional spinal unit angle Cervical alignment Cervical range of motion
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