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Gần đây phát triển cộng hưởng từ (MR) hình ảnh kỹ thuật cho phép phát hiện chính xác của các khuyết tật trung bình và cao cấp sụn khớp. Đã được quan tâm tăng lên trong MR hình ảnh của sụn khớp một phần vì nó rất hữu ích trong việc xác định bệnh nhân có thể hưởng lợi từ phương pháp điều trị thay thế sụn khớp mới, | Perspectives on Modern Orthopaedics Magnetic Resonance Imaging of Articular Cartilage of the Knee Thomas R. McCauley MD and David G. Disler MD Abstract Recently developed magnetic resonance MR imaging techniques allow accurate detection of moderate- and high-grade articular cartilage defects. There has been increased interest in MR imaging of articular cartilage in part because it is useful in identifying patients who may benefit from new articular cartilage replacement therapies including chondrocyte transplantation improved techniques for osteochondral transplantation chondroprotective agents and cartilage growth stimulation factors. The modality also has the potential to play an important role in the follow-up of patients during and after treatment. Detection of articular cartilage defects is beneficial for patients undergoing arthroscopy for other injuries such as meniscal tears because the presence of articular cartilage injury worsens prognosis and may modify therapy options. J Am Acad Orthop Surg 2001 9 2-8 Interest in cartilage imaging has increased recently for many reasons. As the mean age of the population has risen the incidence of osteoarthritis has increased. Articular cartilage abnormalities are common with nearly 75 of persons over age 75 years having osteoarthritis.1 The advent of arthroscopy has brought a greater demand for accurate preoperative evaluation. Identification of isolated articular cartilage injuries with magnetic resonance MR imaging prior to arthroscopy is important because articular cartilage injuries can clinically mimic meniscal tears.2 In addition prearthro-scopic evaluation of articular cartilage allows better prediction of prognosis for planned interventions because of the association of articular cartilage defects with a less satisfactory clinical outcome.3 The most important reason for the increased interest in accurate imaging evaluation of articular cartilage is the development of cartilage replacement therapies. Detection
