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BACKGROUND Glenohumeral dislocations often recur, probably because a Bankart lesion does not heal sufficiently during the period of immobilization. Using magnetic resonance imaging, we assessed the position of the Bankart lesion, with the arm in internal and external rotation, in shoulders that had had a dislocation. METHODS Coaptation of a Bankart lesion(More)
Bursitis or large bursa formation associated with osteochondroma has rarely been reported. A 33-year-old male presented with upper back pain, a rapidly developing mass beside the lateral border of his right scapula and snapping elicited by movement of the scapula. Plain radiograms and CT revealed osteochondroma on the ventral surface of the scapula without(More)
BACKGROUND We analyzed the mechanical environment of the supraspinatus tendon using a three-dimensional finite element model with the software programs MENTAT and MARC. METHODS The supraspinatus tendon that attaches to the superior facet was extracted and modeled. The geometric shape of the humeral head was determined from computed tomography images, and(More)
Infantile and maternal choriocarcinoma is a very rare disease. We report a case with the characteristic clinical features of infantile choriocarcinoma: developing anemia, hemorrhagic liver tumors, rapid progression to death and matemal choriocarcinoma. Bone scintigraphy showed increased uptake by the liver tumors. In this case there were two possible(More)
BACKGROUND Elongation of the shoulder capsule is often noticed on arthrograms or during surgery in shoulders of patients who have experienced recurrent anterior dislocations. HYPOTHESIS We can quantify the elongation of the capsule in shoulders with recurrent anterior dislocations by using magnetic resonance arthrography. STUDY DESIGN Retrospective(More)
The computed tomography (CT) and magnetic resonance imaging (MRI) results of 30 consecutive patients with tumours in the skull base, and who had abnormalities of the pterygopalatine fossa (PPF) on CT or MRI, were retrospectively compared with respect to visualization of tumour infiltration into the PPF. CT did not depict the abnormalities in the PPF in five(More)
PURPOSE To determine the efficacy of superselective angio-CT in the diagnosis of astrocytoma. METHODS Nineteen patients with astrocytoma had superselective angio-CT before chemotherapeutic agents were administered via superselective intraarterial infusion. CT was performed after contrast material was delivered through a microcatheter, which had been(More)
We performed 2-dimensional finite element model analysis to estimate the mechanical environment of the supraspinatus tendon. The geometric shape of the finite element model was determined by magnetic resonance imaging of a normal human shoulder obtained at 0 degrees, 30 degrees, and 60 degrees of abduction, whereas the histologic location of noncalcified(More)
To compare indirect magnetic resonance (MR) arthrography findings in patients with rotator cuff tears with and without symptoms. Indirect MR arthrography results of 15 asymptomatic and 23 symptomatic rotator cuff tears were retrospectively reviewed, comparing the type and size of tears and amount of subacrominal-subdeltoid bursal fluid. There were 14(More)