Orthopedics Department, Hospital Italiano de Buenos Aires, Potosi 4247, C1199ACK, Buenos Aires, Argentina.
Knee Surg Sports Traumatol Arthrosc. 2011 Mar;19(3):408-11. doi: 10.1007/s00167-010-1239-5. Epub 2010 Sep 1.
To describe the clinical, MRI, intraoperative, and histological features of mucoid degeneration of the anterior cruciate ligament (ACL).
This study included 10 patients (average age 47 years, range 19-69 years) who underwent surgery due to clinical diagnoses of mucoid degeneration of the ACL. All patients underwent preoperative magnetic resonance imaging (MRI) and were arthroscopically treated.
All 10 patients reported preoperative posterior knee pain. MRI indicated a thickened ACL with increased signal on all sequences. Postoperatively, only six of 10 patients were confirmed by biopsy to have a mucoid degeneration of the ACL. An associated intraosseous tibial cyst or ganglion was observed only in patients with a definitive diagnosis of mucoid degeneration.
Mucoid degeneration of the ACL can be suspected in patients with posterior knee pain associated with a thickened ACL. Associated findings such as an intraosseous tibial or ganglion cyst help to rule out differential diagnosis.
描述前交叉韧带（ACL）黏液样变性的临床、MRI、术中及组织学特征。
本研究纳入了 10 例因 ACL 黏液样变性的临床诊断而接受手术的患者（平均年龄 47 岁，范围 19-69 岁）。所有患者均接受了术前磁共振成像（MRI）检查，并进行了关节镜治疗。
10 例患者均报告术前存在膝关节后痛。MRI 显示 ACL 增厚，所有序列信号增强。术后，仅 10 例患者中的 6 例经活检证实 ACL 黏液样变性。仅在明确诊断为黏液样变性的患者中观察到伴发的胫骨内髁骨囊肿或腱鞘囊肿。
对于伴有 ACL 增厚的膝关节后痛患者，可怀疑 ACL 黏液样变性。伴发的胫骨内髁或腱鞘囊肿等发现有助于排除鉴别诊断。
