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OBJECTIVE The purpose of this study was to evaluate clinical symptoms and radiographic features that allow radiologists to differentiate between enchondroma and central grade 1 chondrosarcoma. Such differentiation is important because of differences in management. MATERIALS AND METHODS Clinical symptoms and location and size of 35 enchondromas and 43(More)
The purpose of this study was to determine the prevalence, extension and signal characteristics of fluid-fluid levels in a large series of 700 bone and 700 soft tissue tumors. Out of a multi-institutional database, MRI of 700 consecutive patients with a bone tumor and MRI of 700 consecutive patients with a soft tissue neoplasm were retrospectively reviewed(More)
The data on 98 new patients with osteoblastoma were studied. The clinical features of pain, scoliosis, and neurologic deficit were largely consistent with those in previous reports. Osteoblastoma is usually a lytic lesion originating in the medulla of bones with matrix ossification and mild surrounding sclerosis. Osteoblastoma of the spine demonstrated(More)
To develop a scoring system for quantifying osteoarthritic changes of the knee as identified by magnetic resonance (MR) imaging, and to determine its inter- and intra-observer reproducibility, in order to monitor medical therapy in research studies. Two independent observers evaluated 25 consecutive MR examinations of the knee in patients with previously(More)
Enchondromatosis is a rare, heterogeneous skeletal disorder in which patients have multiple enchondromas. Enchondromas are benign hyaline cartilage forming tumors in the medulla of metaphyseal bone. The disorder manifests itself early in childhood without any significant gender bias. Enchondromatosis encompasses several different subtypes of which Ollier(More)
OBJECTIVE To investigate the effect of long term high intensity weightbearing exercises on radiological damage of the joints of the hands and feet in patients with rheumatoid arthritis (RA). METHODS Data of the 281 completers of a 2 year randomised controlled trial comparing the effects of usual care physical therapy (UC) with high intensity weightbearing(More)
OBJECTIVES Using the International Classification of Functioning, Disability and Health as framework, we evaluated modifying effects of illness perceptions and mental health on the association between impairments in body structures and functions due to osteoarthritis (OA) and limitation in activities in the lower extremities. METHODS Self-reported(More)
OBJECTIVE To examine the association between changes in common sense models and changes in functional status over a 6-year follow-up in patients with osteoarthritis. DESIGN At baseline and follow-up, osteoarthritis outpatients (N = 241) recruited from a university medical center completed the Illness Perception Questionnaire-Revised (IPQ-R), the(More)
To evaluate the incidence, quantity, and presentation of intra- and extraosseous edema accompanying benign and malignant primary bone lesions, the magnetic resonance (MR) studies of 63 consecutive patients with histologically proven primary bone tumors were reviewed. MR scans were assessed for the presence and quantity of marrow and soft tissue edema and(More)
This article focuses on major clinical and imaging features that are of practical interest in diagnosis and management of bone forming neoplasms. Current histologic classification of these tumors is emphasized. Data presented are based on files of 1400 patients who have osseous neoplasms.