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Computerized tomography (CT) provides an accurate diagnostic tool for evaluating tilt and subluxation of the patella. Using a previously described technique, this study reviews 62 computerized tomograms, including those of 21 patients before and after lateral release or anteromedial tibial tubercle transfer. One patient was evaluated before and after(More)
Periventricular heterotopia (PH) involves dramatic malformations of the human cerebral cortex. Here we show that PH is closely linked to markers in distal Xq28 (maximal two-point lod score = 4.77 for F8C at theta = 0; maximal multipoint lod score = 5.37), so that affected females are obligatory mosaics for the mutation; that PH is lethal to at least some(More)
RATIONALE AND OBJECTIVES We undertook an MRI brain morphometric analysis to investigate the relationships between brain and skull base growth and clinical function in patients with achondroplasia as compared to normal controls. METHODS Patients selected for evaluation included pediatric patients who underwent T1 and T2 or dual-echo, proton-density axial(More)
Thermoluminescent dosimeters were used to measure radiation doses at craniofacial sites in a tissue-equivalent phantom during film-based multidirectional tomography with the Tomax Ultrascan (Incubation Industries, Ivyland, Pa.) and during computed tomography with the Elscint Excel 2400 (Elscint Corp., Tel Aviv, Israel). Mean absorbed doses for presurgical(More)
The effectiveness of five cervical orthoses in restricting cervical motion was evaluated quantitatively in normal subjects using roentgenograms and overhead photographs made at the extremes of three planes of motion, while the effectiveness of the halo with a plastic body-vest was studied in seven patients with cervical fractures or local fusions. Flexion(More)
Grebe syndrome is a recessively inherited acromesomelic dysplasia. We studied, clinically and radiographically, 10 affected individuals, originating from Bahia, Brazil. The phenotype is characterized by a normal axial skeleton and severely shortened and deformed limbs, with a proximo-distal gradient of severity. The humeri and femora were relatively normal,(More)
OBJECTIVE To define the evolution of identified high-signal brain parenchymal lesions on magnetic resonance imaging (MRI) studies in patients with neurofibromatosis type 1 (NF-1). DESIGN A cohort of patients with NF-1 who underwent MRI were identified prospectively and their imaging studies analyzed. PATIENTS All referred patients with NF-1 (as defined(More)
A preliminary study was undertaken at the University of Connecticut Sport Injury and Knee Clinic to evaluate a small series of patients with peripatellar pain as well as a group of asymptomatic controls. With the encouragement of the initial results, this experience has been expanded to include a larger number of patients. Based on CT criteria of(More)
There are well-recognized limitations of conventional axial radiographs of the patellofemoral joint in assessing patients with peripatellar pain, particularly in the first 20 degrees of knee flexion. Computerized tomography (CT) was used, therefore, to evaluate 20 patients with persistent patellofemoral pain and ten asymptomatic volunteers. Multiple(More)