Lui Tun Hing
Department of Orthopaedics and Traumatology, North District Hospital, Sheung Shui, NT, Hong Kong SAR, China.
Arthrosc Tech. 2017 Apr 17;6(2):e461-e466. doi: 10.1016/j.eats.2016.11.001. eCollection 2017 Apr.
Although most of the parameniscal cysts are very small and asymptomatic, some of them can present with a painful mass or snapping knee. Because parameniscal cysts are almost always associated with horizontal meniscal tears, arthroscopic partial meniscectomy of the involved part of meniscus and intra-articular cyst drainage has become the most accepted procedure. However, arthroscopic cyst decompression through partial meniscectomy to the meniscocapsular junction to expose the communication between the cyst and the knee joint may sacrifice some of the healthy parts of the meniscus especially when meniscal tear is peripheral. Moreover, internal drainage may not be an adequate treatment for a cyst larger than 5 cm in size or a multiloculated cyst. The excision of the cyst is a more appropriate treatment option in these situations. The purpose of this Technical Note is to describe the details of endoscopic resection of medial extra-articular cysts of the knee. This technique is indicated in symptomatic medial extra-articular cysts of the knee with peripheral or no tear of the medial meniscus, especially if the cysts are large and multiloculated.
尽管大多数半月板旁囊肿非常小且无症状，但其中一些可能会表现为疼痛性肿块或膝关节弹响。由于半月板旁囊肿几乎总是与半月板水平撕裂相关，因此关节镜下对半月板受累部分进行部分半月板切除术及关节内囊肿引流已成为最常用的手术方法。然而，通过部分半月板切除术至半月板-关节囊交界处进行关节镜下囊肿减压以暴露囊肿与膝关节之间的连通，可能会牺牲半月板的一些健康部分，尤其是当半月板撕裂位于周边时。此外，对于直径大于5厘米的囊肿或多房性囊肿，内部引流可能不是一种充分的治疗方法。在这些情况下，囊肿切除术是更合适的治疗选择。本技术说明的目的是描述膝关节内侧关节外囊肿的内镜切除细节。该技术适用于有症状的膝关节内侧关节外囊肿，内侧半月板有周边撕裂或无撕裂，特别是当囊肿大且为多房性时。
