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首页> 外文期刊>Orthopaedic Journal of Sports Medicine >Unique Anatomic Feature of the Posterior Cruciate Ligament in Knees Associated With Osteochondritis Dissecans
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Unique Anatomic Feature of the Posterior Cruciate Ligament in Knees Associated With Osteochondritis Dissecans

机译：后交叉韧带与解剖性骨软骨炎相关的膝盖的独特解剖特征

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Background: Osteochondritis dissecans (OCD) of the knee is a disorder in juveniles and young adults; however, its etiology still remains unclear. For OCD at the medial femoral condyle (MFC), it is sometimes observed that the lesion has a connection with fibers of the posterior cruciate ligament (PCL). Although this could be important information related to the etiology of MFC OCD, there is no report examining an association between the MFC OCD and the PCL anatomy. Purpose: To investigate the anatomic features of knees associated with MFC OCD, focusing especially on the femoral attachment of the PCL, and to compare them with knees associated with lateral femoral condyle (LFC) OCD and non-OCD lesions. Study Design: Case-control study; Level of evidence, 3. Methods: We retrospectively reviewed 39 patients (46 knees) with OCD lesions who had undergone surgical treatment. Using magnetic resonance imaging (MRI) scans, the PCL attachment at the lateral wall of the MFC was measured on the coronal sections, and the knee flexion angle was also measured on the sagittal sections. As with non-OCD knees, we reviewed and analyzed 25 knees with anterior cruciate ligament (ACL) injuries and 16 knees with meniscal injuries. Results: MRIs revealed that the femoral PCL footprint was located in a significantly more distal position in the patients with MFC OCD compared with patients with LFC OCD and ACL and meniscal injuries. There was no significant difference in knee flexion angle among the 4 groups. Conclusion: The PCL in patients with MFC OCD attached more distally at the lateral aspect of the MFC compared with knees with LFC OCD and ACL and meniscal injuries.
机译：背景：膝关节骨软骨炎（OCD）是青少年和年轻人的疾病。然而，其病因仍不清楚。对于内侧股骨（（MFC）处的OCD，有时观察到病变与后十字韧带（PCL）的纤维有关。尽管这可能是与MFC OCD的病因相关的重要信息，但尚无报告检查MFC OCD与PCL解剖结构之间的关联。目的：研究与MFC OCD相关的膝盖的解剖特征，特别是在PCL的股骨附着上，并将它们与与外侧股骨con（LFC）OCD和非OCD病变相关的膝盖进行比较。研究设计：病例对照研究;证据等级，3。方法：我们回顾性分析了接受手术治疗的39例OCD病变患者（46膝）。使用磁共振成像（MRI）扫描，在冠状部分测量MFC侧壁上的PCL附着，在矢状部分测量膝盖屈曲角度。与非OCD膝盖一样，我们回顾并分析了前交叉韧带（ACL）损伤的25膝和半月板损伤的16膝。结果：MRI显示，与LFC OCD和ACL以及半月板损伤的患者相比，MFC OCD患者的股骨PCL足迹位于远端位置明显更远。 4组膝关节屈曲角度无明显差异。结论：与LFC OCD和ACL以及半月板损伤的膝关节相比，MFC OCD患者的PCL在MFC侧面更向远端附着。

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