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Thirty-two patients who had medial open reduction of 40 hips were reviewed at an average of 10.3 years follow-up (range 2.5-18.6 y). Center-edge angles and acetabular indices were measured on preoperative, postoperative, and final radiographs. The presence of AVN was noted. The final radiograph was assigned a Severin grade. One hip re-dislocated. Eight(More)
The contribution of penetrating photon energy to tumor dose is usually ignored because of the difficulty in calculating absorbed fractions and because it is frequently assumed to represent a small proportion of the total energy. The MABDOSE software--written explicitly to simulate photon transport for the calculation of penetrating radiation absorbed(More)
STUDY DESIGN Movement analysis of spinal motion. OBJECTIVE To compare spinal motion among females with normal spines, those with idiopathic scoliosis who had not had spinal fusion, and those who had undergone fusion for idiopathic scoliosis. SUMMARY OF BACKGROUND DATA Previous reports have documented loss of spinal motion following fusion for idiopathic(More)
This paper places the modern spread of diet-related chronic disease in the United States within the context of more than a century of innovation in food processing technology, discovery in nutrition science, and corrective policy measures aimed at improving public health. We ask whether the current state of affairs represents a market failure, and–if(More)
In many ways, the modern market for food exemplifies the economist's conception of perfect competition, with many buyers, many sellers, and a robust and dynamic marketplace. But over the course of the last century, the U.S. has witnessed a dramatic shift away from traditional diets and toward a diet comprised primarily of processed brand-name foods with(More)
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