Léonard Rosenthall

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We prospectively assessed femoral bone remodeling using dual-energy x-ray absorptiometry for 2 years after total hip arthroplasty. Thirty-nine hips were randomized to receive a titanium proximally porous-coated femoral component with or without hydroxyapatite-tricalcium phosphate coating. Although both stems resulted in alterations in the periprosthetic(More)
The objective of this prospective study was to determine if bone densitometry can detect disparities in regional adaptive bone remodelling surrounding the cementless porous-coated femoral component of a hip prosthesis in two titanium alloy implants of different design . These prostheses were the S-ROM™ (n=69) and the Multilock™ (n=65). The Multilock™(More)
An improved treatment method for hepatic malignancies with yttrium-90 incorporated into the matrix of glass microspheres was evaluated prospectively. Fifteen patients with 12 metastatic colorectal cancers, one carcinoid, one islet cell tumor, and one hepatoma were treated with three dose levels: 5,000 cGy (5,000 rad), ten patients; 7,500 cGy (7,500 rad),(More)
Important deteriorations in body composition and strength occur and need to be accurately measured in advanced cancer patients (ACPs). The aim of this study was to establish the relationship between a single-frequency bioimpedance analyzer (BIA) and the dual-energy X-ray absorptiometer (DXA), as well as the Jamar handgrip dynometer and the Biodex handgrip(More)
Oral and intravenous (IV) antibiotic regimens were compared in 15 children with etiologically defined osteomyelitis and/or septic arthritis. On admission all children were started on standard IV therapy; seven were changed to oral antibiotics within 72 hours and the remaining eight continued on IV therapy for four weeks. Oral antibiotic doses were adjusted(More)
A study was undertaken to investigate the behavior of 99mTc-Sn-pyrophosphate complex in metabolic bone disease. Of clinical importance was the generalized increased periarticular bone accumulation of the radiopharmaceutical in osteomalacia and in combined osteomalacia and osteitis fibrosa as found in patients with chronic renal failure. The pattern in(More)
The effect of rotation on the measurement of periprosthetic bone mineral content and bone mineral density using dual energy xray absorptiometry was studied in 9 anatomic specimen femora implanted with noncemented titanium hip prostheses. An apparatus was constructed to permit accurate femoral rotation through an arc of 30 degrees internal to 30 degrees(More)
99mTc pyrophosphate was employed in the study of patients with hypertrophic pulmonary osteoarthropathy. Several facts emerge when comparing the radionuclide, radiographic and clinical findings. Radionuclide imaging reveals the presence and extent of subperiosteal activity with greater clarity than does radiography. Synovitis associated with the syndrome is(More)
An historical review of radionuclide applications to the assessment of synovitis is presented. Contemporary radiopharmaceuticals are grouped into vascular, bone, and inflammatory markers, and their clinical utility and efficacy in disclosing peripheral synovitis and osteoarthritis are surveyed. There is focus on the debate over the usefulness of(More)