Abstract：
Numerous studies on meniscal tears have been published, a pathology that continues to evolve in terms of treatment and patient outcomes. As our understanding of anatomy and biomechanics improves, new entities have emerged. The lateral meniscus, especially its posterior attachment, tends to be overlooked due to its greater mobility compared to the medial meniscus. Evaluating the instability of the posterior horn poses a challenge, even during arthroscopy, therefore, it is crucial to understand the posterior menisco-synovial detachment lesions, which are indeed real and, to date, haven\'t received enough attention in the existing literature. The aim is to describe a new entity affecting the posterior synovial attachment of the lateral meniscus, without injury to the posterior horn of the lateral meniscus (PHLM). We also aim to present a case report detailing the intraoperative diagnosis and management of a 20-year-old patient with a sports trauma that led to a combined anterior cruciate ligament (ACL) and lateral meniscus tear managed with arthroscopic ACL reconstruction and all-inside meniscal suture. Through conventional arthroscopic evaluation of the posterior capsule anatomy and dissections, we have identified a distinct lesion of the PHLM at the menisco-synovial junction. Further research is necessary in this field to understand the biomechanical repercussions and determine the ideal surgical management.
摘要：
已经发表了许多关于半月板撕裂的研究，在治疗和患者预后方面继续发展的病理学。随着我们对解剖学和生物力学的理解的提高，新的实体出现了。外侧半月板，尤其是它的后部附件，由于其与内侧半月板相比具有更大的活动性，因此往往被忽略。评估后角的不稳定性提出了挑战，即使在关节镜检查期间，因此,了解后半月板滑膜脱离病变是至关重要的，它们确实是真实的，到目前为止,在现有文献中没有得到足够的重视。目的是描述影响外侧半月板后部滑膜附着的新实体，不损伤外侧半月板后角（PHLM）。我们还旨在提供一个病例报告，详细说明一名20岁的运动创伤患者的术中诊断和治疗，该创伤导致前交叉韧带（ACL）和外侧半月板撕裂，并通过关节镜ACL重建和全内侧半月板缝合。通过常规关节镜评价后囊解剖和解剖,我们在半月板-滑膜交界处发现了一个明显的PHLM病变.需要在该领域进行进一步的研究，以了解生物力学影响并确定理想的手术管理。
