Pedrinelli André, Castellana Fabio Bonini, Bragança de Vasconcellos Fontes Ricardo, Coelho Rafael Ferreira, Alvaro de Menezes Luiz Alvaro
Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculty of Medicine, Universidade de São Paulo, São Paulo, Brazil.
Sao Paulo Med J. 2002 Nov 1;120(6):195-7. doi: 10.1590/s1516-31802002000600009. Epub 2003 Jan 22.
A ganglion is a cystic formation close to joints or tendinous sheaths, frequently found in the wrist, foot or knee. Intra-articular ganglia of the knee are rare, and most of them are located in the anterior cruciate ligament. The clinical picture for these ganglia comprises pain and movement restrictions in the knee, causing significant impairment to the patient. Symptoms are non-specific, and anterior cruciate ligament ganglia are usually diagnosed through magnetic resonance imaging or arthroscopy. Not all ganglia diagnosed through magnetic resonance imaging need to undergo surgical treatment: only those that cause clinical signs and symptoms do. Surgical results are considered good or excellent in the vast majority of cases.
A 29-year-old male presented with pain in the left knee during a marathon race. Physical examination revealed limitation in the maximum range of knee extension and pain in the posterior aspect of the left knee. Radiographs of the left knee were normal, but magnetic resonance imaging revealed a multi-lobed cystic structure adjacent to the anterior cruciate ligament, which resembled a ganglion cyst. The mass was removed through arthroscopy, and pathological examination revealed a synovial cyst. Patient recovery was excellent, and he resumed his usual training routine five months later.
腱鞘囊肿是一种靠近关节或腱鞘的囊性结构，常见于手腕、足部或膝盖。膝关节内腱鞘囊肿较为罕见，其中大部分位于前交叉韧带。这些腱鞘囊肿的临床表现包括膝关节疼痛和活动受限，给患者带来显著损害。症状不具特异性，前交叉韧带腱鞘囊肿通常通过磁共振成像或关节镜检查来诊断。并非所有通过磁共振成像诊断出的腱鞘囊肿都需要接受手术治疗：只有那些引起临床体征和症状的才需要。在绝大多数情况下，手术效果被认为良好或极佳。
一名29岁男性在马拉松比赛期间出现左膝疼痛。体格检查发现左膝关节最大伸展范围受限，左膝后方疼痛。左膝X线片正常，但磁共振成像显示前交叉韧带附近有一个多叶状囊性结构，类似腱鞘囊肿。通过关节镜手术切除了肿块，病理检查显示为滑膜囊肿。患者恢复良好，五个月后恢复了正常训练。
