RESUMO
Multiple injuries to the hand are relatively common in basketball. This article explains the importance of an early and thorough examination, preferably by a hand specialist. It is important to obtain a history of prior injury during the assessment because treatment and prognosis may be very different. Delayed treatment often yields an inferior result and lost time. If an injury is not treated initially, it may require operative treatment or even be untreatable.
Assuntos
Basquetebol/lesões , Traumatismos da Mão/patologia , Traumatismos do Punho/patologia , Traumatismos dos Dedos/patologia , Fraturas Ósseas/patologia , Humanos , Luxações Articulares/patologiaRESUMO
Magnetic resonance imaging and radiographs in neutral flexion and extension were used to evaluate 20 pediatric Klippel-Feil patients for subluxation and stenosis. Radiographs showed subluxation of 5 mm or greater in 5 (25%) of the 20 patients for an incidence of 25%. Magnetic resonance imaging documented stenosis of 9 mm or less below C1 in 5 (25%) of the 20 patients. Cord abnormalities were discovered in three (12%) of the patients: one hydromyelia with Arnold-Chiari I malformation and diplomyelia in two. The incidence of stenosis and subluxation was higher than the literature would suggest in this pediatric population. Magnetic resonance imaging is a useful tool and should be used to evaluate Klippel-Feil patients for cord abnormalities and cord compression.
Assuntos
Luxações Articulares/diagnóstico , Síndrome de Klippel-Feil/diagnóstico , Estenose Espinal/diagnóstico , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Luxações Articulares/complicações , Luxações Articulares/congênito , Luxações Articulares/diagnóstico por imagem , Síndrome de Klippel-Feil/complicações , Síndrome de Klippel-Feil/diagnóstico por imagem , Masculino , Radiografia , Medula Espinal/anormalidades , Estenose Espinal/complicações , Estenose Espinal/diagnóstico por imagemRESUMO
Visible light (450 nm) caused base-pair substitution and frameshift mutations in Escherichia coli. Using the defined trpA reversion system, we showed that visible light induced transversions at both A:T and G:C sites although some base-pair substitutions were refractory to light-induced mutagenesis, possibly because of their location. The presence of R plasmid pKM101 caused a greater than additive increase in light-induced base-pair substitutions for some trpA alleles. Visible light mutagenesis was reduced but not abolished in a recA56 background, suggesting that more than one mutational mechanism may be operative.
