Magnetic resonance tomography of the knee joint

Abstract

We can recommend the use of low-field strength MRI systems in suspected meniscal or cruciate ligament injuries. This does, however, not apply to the diagnosis and grading of knee cartilage defects and osteoarthritis because of insufficient evidence.

Soft tissue pseudotumours: a pictorial review with emphasis on MRI

“…In general, normal ligaments demonstrate low signal intensity on MR sequences, whereas disruption manifests as altered signal intensity and loss of typical ligamentous anatomy 24 . Familiarity with the fine anatomy of the ligament is cru- © C I C E d i z i o n i I n t e r n a z i o n a l i cial for identifying partial or complete tear.…”

“…Ligament tears MRI can provide valuable information for diagnosis and evaluation of ligamentous tears 24 . In general, normal ligaments demonstrate low signal intensity on MR sequences, whereas disruption manifests as altered signal intensity and loss of typical ligamentous anatomy 24 .…”

“…Part of the lesion may be interspersed within the ligament fibers, or lying entirely adjacent to the ligament, or it may extend occasionally in the surrounding soft tissues. An unilocular or multilocular appearance has been described, and MRI is the modality of choice for correct identification, especially in lesions located in the deep soft tissues [22][23][24][25] (Fig. 13).…”

“…Familiarity with the fine anatomy of the ligament is cru- © C I C E d i z i o n i I n t e r n a z i o n a l i cial for identifying partial or complete tear. In addition, an optimal MR imaging technique should include proper extremity positioning, dedicated surface coils, and specific MR protocols for identification of the suspected tear, especially in stabilizing ligamentous elements of small joints 24,25 . Associated soft tissue oedema and altered anatomy may simulate a more aggressive procedure, and thus MR imaging is a powerful method for evaluating acute and chronic ligament tears (Fig.…”

“…As with tendon ganglion cysts, they are cystic lesions, and typically arise from chronic traumatic injury of the ligament [22][23][24][25] . Part of the lesion may be interspersed within the ligament fibers, or lying entirely adjacent to the ligament, or it may extend occasionally in the surrounding soft tissues.…”