Griffin Letha Y, Burnett Matt, Milsap James H
Peachtree Orthopaedic Clinic, Atlanta, GA 30309, USA.
South Med J. 2002 Oct;95(10):1153-7.
The appearance of normal and injured cruciate ligaments on magnetic resonance imaging (MRI) has been well described in the literature. Few studies have reported on changes found on sequential imaging of injured posterior cruciate ligaments (PCLs) during the healing process, however.
Ten consecutive patients with isolated injuries to the PCL were evaluated with an initial clinical examination, x-rays, and MRI of the injured knee. Clinical examination and imaging studies were repeated at a minimum of 6 months after the initial injury. These studies were interpreted by radiologists blinded to the study design.
Seven of the 10 patients were found to have PCL continuity on repeat MRI. One patient continued to demonstrate an abnormal appearance of the PCL on MRI, and 2 patients were lost to follow-up.
Despite the healed appearance of their PCLs on imaging studies, 6 of 7 patients continued to demonstrate laxity on clinical examination. All returned to their preinjury occupations and to recreational sports, however. Our results are consistent with previously reported data.
正常和损伤的交叉韧带在磁共振成像（MRI）上的表现已在文献中得到充分描述。然而，关于损伤的后交叉韧带（PCL）在愈合过程中连续成像上发现的变化的研究很少。
对10例连续的单纯PCL损伤患者进行了初始临床检查、X线检查和患侧膝关节MRI检查。在初次损伤后至少6个月重复进行临床检查和影像学研究。这些研究由对研究设计不知情的放射科医生解读。
10例患者中有7例在重复MRI检查时发现PCL连续。1例患者在MRI上仍显示PCL外观异常，2例患者失访。
尽管影像学研究显示其PCL外观已愈合，但7例患者中有6例在临床检查中仍表现为松弛。然而，所有患者都恢复了伤前的工作和娱乐运动。我们的结果与先前报道的数据一致。
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