Karasick D, Schweitzer M E
Thomas Jefferson University Hospital, Department of Radiology, Philadelphia PA 19107-5091, USA.
Skeletal Radiol. 1998 Aug;27(8):411-8. doi: 10.1007/s002560050410.
Numerous painful conditions can affect the first metatarsophalangeal-sesamoid joint complex. Symptoms can be of sudden or insidious onset, and be of acute or chronic duration. Although conventional radiography is recognized as the initial diagnostic procedure for these symptoms, there is often a need to proceed to MR imaging. MR imaging is sensitive and can be utilized in the investigation of the hallux sesamoid complex to differentiate soft tissue from osseous pathology. Synovitis, tendonitis, and bursitis can be distinguished from bony abnormalities such as sesamoid fracture, avascular necrosis, and osteomyelitis. An understanding of MR imaging features and techniques will result in the highest diagnostic yield. Early and accurate diagnosis of sesamoid complex disorders can guide the physician to the appropriate clinical management and prevent potentially harmful longstanding joint dysfunction.
许多疼痛性病症可影响第一跖趾-籽骨关节复合体。症状可突然或隐匿起病，病程可为急性或慢性。尽管传统X线摄影被认为是这些症状的初始诊断方法，但通常仍需要进行磁共振成像（MR成像）检查。MR成像敏感性高，可用于拇籽骨复合体的检查，以区分软组织病变和骨病变。滑膜炎、肌腱炎和滑囊炎可与籽骨骨折、缺血性坏死和骨髓炎等骨异常相鉴别。了解MR成像特征和技术将获得最高的诊断率。籽骨复合体疾病的早期准确诊断可指导医生进行适当的临床管理，并预防潜在有害的长期关节功能障碍。
