Seminars in musculoskeletal radiology
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Semin Musculoskelet Radiol · Jun 2002
ReviewConsiderations in metatarsalgia and midfoot pain: an MR imaging perspective.
There are many conditions that have the potential to produce the symptom of pain in the metatarsal and midfoot regions. Pathologic processes that cause pain include post-traumatic disorders, circulatory disorders, arthritides, neuroarthropathy, and conditions that result in a biomechanical imbalance in the foot. Magnetic resonance (MR) imaging is a powerful imaging tool since it provides a noninvasive method for diagnosis of different foot disorders. In this article, we will discuss the MR manifestation of a number of pathologic entities that elicit foot pain as a primary symptom.
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Semin Musculoskelet Radiol · Mar 2002
ReviewTechnical considerations: CT and MR imaging in the postoperative orthopedic patient.
Cross-sectional imaging utilizing computed tomography (CT) and magnetic resonance (MR) imaging have become routine components in the imaging assessment of patients with musculoskeletal disease. Unfortunately, in the setting of a postoperative orthopedic patient with associated orthopedic metallic instrumentation, these imaging techniques are prone to artifacts resulting in image quality degradation. An understanding of the physical basis of such metal-related artifacts, and their appearance on CT and MR imaging, has led investigators to the implementation of a series of techniques and modifications to imaging protocols to decrease CT and MR imaging artifacts in the vicinity of metallic instrumentation. Utilizing such modified imaging techniques, consistent, improved CT and MR image quality may be achieved in imaging of the postoperative orthopedic patient.
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Semin Musculoskelet Radiol · Dec 2001
ReviewPostoperative magnetic resonance imaging of articular cartilage repair.
The treatment of articular cartilage injuries remains a challenge because cartilage has a limited capacity for spontaneous repair. Over the past decade, a number of surgical interventions have been developed to produce a durable repair. This article reviews the available treatment options, including their indications, technique, and clinical results, and illustrates the MR imaging appearance of normal repair sites and postoperative complications.
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Phalangeal microgeodic syndrome specifically affects the phalanges in infants. The radiographic findings are characterized by small lacunae measuring less than 1 mm in diameter in the phalanges. The symptoms usually subside spontaneously within 2 to 3 months with no residual deformity. Accurate diagnosis is possible by radiologists with knowledge on this disease entity.
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Three bones and two joints comprise the pectoral girdle. These are the clavicle, scapula, proximal humerus, acromioclavicular joint, and shoulder joint. The pectoral girdle binds the upper extremity to the torso. ⋯ Whereas the former is a painful but self-limiting injury with minimal sequelae, the latter is life threatening. However, the severity of most pectoral girdle injuries lies between these two extremes. Fractures and dislocations are common in this region throughout life, and a clear understanding of the patterns of injury and their radiographic spectrum is essential for all radiologists who deal with trauma.