In vivo posterior cruciate ligament elongation in running activity after anatomic and non-anatomic anterior cruciate ligament reconstruction.
In vivo posterior cruciate ligament elongation in running activity after anatomic and non-anatomic anterior cruciate ligament reconstruction.
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DOI：
10.1007/s00167-016-4180-4
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发表时间：
2017-04
影响因子：
3.8
通讯作者：
Tashman, Scott
中科院分区：
文献类型：
--
作者：
Tang, Jing;Thorhauer, Eric;Bowman, Karl;Fu, Freddie H.;Tashman, Scott
关键词：
本研究的目的是(1)研究后十字韧带(PCL)在未损伤的膝关节中运动时的体内伸长行为；(2)评价解剖性和非解剖性前十字韧带(ACL)重建后后十字韧带(PCL)在跑步过程中的伸长变化。17名单侧前交叉韧带损伤的受试者接受了解剖重建(n=9)和非解剖重建(n=8)。进行双侧高分辨率CT扫描，建立三维模型。在三维CT扫描重建上确定PCL的前外侧(AL)和后内侧(PM)束的插入位置。在跑步过程中使用动态立体X光(DSX)系统评估动态膝关节功能。AL和PM束的长度是从挥杆后期到站立中期估计的。对侧膝作为正常对照。对照膝关节在足部撞击后AL束轻微减少，PM束长度显著缩短。解剖前交叉韧带重建组双侧后交叉韧带的长度和伸长模式与对照组相似。然而，足部撞击后非解剖重建组的动态PCL长度变化明显大于解剖重建组(P<；0.05)。健膝跑步时，足打击后AL束长略有缩短，PM束长明显缩短。在高要求的功能负荷下，解剖前交叉韧带重建术比非解剖前交叉韧带重建术更有效地维持正常的PCL延长模式。这些结果支持在高要求的活动中使用解剖性前交叉韧带重建来实现正常的膝关节功能。病例对照研究，III级
The goals of this study were to (1) investigate the in vivo elongation behavior of the posterior cruciate ligament (PCL) during running in the uninjured knee; and (2) evaluate changes in PCL elongation during running after anatomic or non-anatomic anterior cruciate ligament (ACL) reconstruction. Seventeen unilateral ACL-injured subjects were recruited after undergoing anatomic (n=9) or non-anatomic (n=8) ACL reconstruction. Bilateral high-resolution CT scans were obtained to produce 3D models. Anterolateral (AL) and posteromedial (PM) bundles insertion sites of the PCL were identified on the 3D CT scan reconstructions. Dynamic knee function was assessed during running using a Dynamic Stereo X-ray (DSX) system. The lengths of the AL and PM bundles were estimated from late swing through mid-stance. The contralateral knees served as normal controls. Control knees demonstrated a slight decrease in AL bundle, and a significant decrease in PM bundle length following foot strike. Length and elongation patterns of the both bundles of the PCL in the anatomic ACL reconstruction group were similar to the controls. However, the change in dynamic PCL length was significantly greater in the non-anatomic group than in the anatomic reconstruction group after foot strike (P<0.05). The AL bundle length decreased slightly and the PM bundle length significantly decreased after foot strike during running in uninjured knees. Anatomic ACL reconstruction maintained normal PCL elongation patterns more effectively than non-anatomic ACL reconstruction during high-demand, functional loading. These results support the use of anatomic ACL reconstruction to achieve normal knee function in high-demand activities. Case-control study, Level III
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影响因子：
4.8
作者：
Li, G;DeFrate, LE;Gill, TJ
通讯作者：
Gill, TJ
影响因子：
2.4
作者：
Li, G;Most, E;Rubash, HE
通讯作者：
Rubash, HE
影响因子：
5.3
作者：
Lopes, Osmar V., Jr.;Ferretti, Mario;Fu, Freddie H.
通讯作者：
Fu, Freddie H.
影响因子：
2.2
作者：
Anderst, William;Zauel, Roger;Tashman, Scott
通讯作者：
Tashman, Scott
影响因子：
3.8
作者：
Bohn, Marie Bagger;Sorensen, Henrik;Lind, Martin
通讯作者：
Lind, Martin