结核性脊柱炎课题.ppt

sensitivie to calcification better expression of sequestrum（死骨） formation epidural（硬膜） /cord compression marrow oedema abnormal enhancement T1: hypointense marrow in adjacent vertebrae. T2: hyperintense marrow, disc, soft tissue infection T1 C+ (Gd): marrow, subligamentous（韧带下）, discal, meninges enhancement Company name Company slogan here Company name Company slogan here WWW.COMPANYSITE.COM | INFO@COMPANYSITE.COM | +12 34 567 890 | LONG STREET 12345, CITY, COUNTRY Company name Company slogan here Company name Company slogan here WWW.COMPANYSITE.COM | INFO@COMPANYSITE.COM | +12 34 567 890 | LONG STREET 12345, CITY, COUNTRY 90% of Osteoarticular(骨关节的) TB is secondary to pulmonary TB. Among them Spine is most common involved at a percentage up to 60%. It is reported that the lumbar(腰椎) spinal vertebra have been found as the most common areas of tuberous infection, followed by thoracic and cervical vertebra in adults, while some studies state the order among kids is thoracic cervical and lumbar. Young adults under 30 are most inclined(倾向于) to suffer from TB spondylities. Although there is an increaesd number of the aged people have this disease in recent years. One of the most specific character of TB infection of spine is that vertebra bodies tend to be affected more often than vertebra appendix. Just appendix infected alone is rarely seen. Pott disease is usually secondary to an extraspinal source of infection pulmonary tb is the typical origin site of infection. Mycobacterium tuberculosis spread hematogenously to paravertebral venous plexus。Destruction of the anterior part of vertebral bodies spread beneath the anterior spinal ligament, involving adjacent vertebra. Vertebral body、pedicle 、end plates、spinous process are the typical elements involved while the discs can be preserved to the very late stage. In adults, disk disease is secondary to the spread of infection from the vertebral body. In child