Rajput Muhammad Irfan, Rafique Muhammad, Khan Muhammad Waqas, Sahito Badaruddin, Hussain Nauman, Mohammad Jemal Girma
Dow University of Health Sciences, Pakistan.
Aga Khan Hospital, Kisumu, Kenya.
Int J Surg Case Rep. 2024 Dec;125:110533. doi: 10.1016/j.ijscr.2024.110533. Epub 2024 Oct 28.
Meniscal cysts, while infrequent with a prevalence of 1 %-8 %, may result in considerable knee discomfort and functional limitations. The cysts are categorized according to their position in relation through the meniscus, labeled as either intrameniscal or parameniscal. Although parameniscal cysts are often small and asymptomatic, they may expand and become painful with time. This case report describes an uncommon instance of a medial parameniscal cyst.
A 28-year-old male presented with persistent pain and swelling in the medial aspect of his left knee, lasting for 8 months. His symptoms were exacerbated by activities such as stair climbing and general mobility. On physical examination, a firm, fluctuating mass measuring 5 × 3 cm was noted. MRI revealed a complex tear in the posterior horn of the medial meniscus, along with a cyst measuring 4.9 × 3.2 × 2.0 cm. Arthroscopy identified a degenerative medial meniscus tear, and the cyst was excised through open surgery. The patient's recovery was uneventful, with full restoration of knee function within three months.
Parameniscal cysts often coexist with horizontal meniscal tears, influenced by factors like knee laxity, trauma, and degeneration. MRI is the preferred diagnostic tool, but high-resolution ultrasound can be beneficial. Treatment options include conservative management and surgical interventions like partial meniscectomy, emphasizing the need for comprehensive diagnosis and appropriate management.
This unique case of a medial parameniscal cyst highlights the critical need for timely diagnosis and intervention. Surgical treatment, including meniscectomy or meniscal repair, offers significant pain relief and functional improvement, demonstrating its effectiveness in managing such cases.
半月板囊肿虽不常见，患病率为1% - 8%，但可导致相当程度的膝关节不适和功能受限。囊肿根据其与半月板的位置关系进行分类，分为半月板内囊肿或半月板旁囊肿。尽管半月板旁囊肿通常较小且无症状，但随着时间推移可能会扩大并变得疼痛。本病例报告描述了一例罕见的内侧半月板旁囊肿。
一名28岁男性，左膝内侧持续疼痛和肿胀8个月。爬楼梯和日常活动等会加重他的症状。体格检查发现一个质地坚硬、有波动感的肿块，大小为5×3厘米。磁共振成像（MRI）显示内侧半月板后角有复杂撕裂，还有一个大小为4.9×3.2×2.0厘米的囊肿。关节镜检查发现内侧半月板退变撕裂，通过开放手术切除了囊肿。患者恢复顺利，三个月内膝关节功能完全恢复。
半月板旁囊肿常与半月板水平撕裂并存，受膝关节松弛、创伤和退变等因素影响。MRI是首选的诊断工具，但高分辨率超声也可能有帮助。治疗选择包括保守治疗和手术干预，如部分半月板切除术，强调需要全面诊断和适当管理。
这例独特的内侧半月板旁囊肿病例凸显了及时诊断和干预的迫切需求。手术治疗，包括半月板切除术或半月板修复，能显著缓解疼痛并改善功能，证明其在处理此类病例中的有效性。
