RESUMO
BACKGROUND: Developmental dysplasia of the hip (DDH) is a common cause of childhood disability, and the incidence of DDH shows significant familial aggregation. As the genetic factors of DDH remain unknown, the correlation between five candidate single nucleotide polymorphisms (SNPs) and DDH was evaluated in the Han Chinese population of Southwest China. METHODS: A caseâcontrol association study was conducted in 276 patients with DDH and 318 healthy controls. SNP genotyping in the case and control groups was performed by SNPshot and multiple PCR. SNPs were genotyped in the case and control groups by multiplex PCR. The relationship between DDH and candidate SNPs was evaluated using the χ2 test. RESULTS: The genotype distributions of rs291412 in HIBCH and rs769956 in FTCDNL1 were different between the case and control groups (P < 0.05). After genetic model analysis, logistic regression analysis revealed that the C allele of rs291412 had a protective effect on DDH (OR = 0.605, P = 0.010) and that the G allele of rs769956 was a risk factor (OR = 2.939, P = 0.010).s. CONCLUSION: These SNPs could be associated with susceptibility to DDH but larger population-based studies should confirm the current results.
Assuntos
Displasia do Desenvolvimento do Quadril , Predisposição Genética para Doença , Hidroximetil e Formil Transferases , Tioléster Hidrolases , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Estudos de Casos e Controles , China/epidemiologia , Displasia do Desenvolvimento do Quadril/genética , População do Leste Asiático/genética , Estudos de Associação Genética , Genótipo , Luxação Congênita de Quadril/genética , Polimorfismo de Nucleotídeo Único , Hidroximetil e Formil Transferases/genética , Tioléster Hidrolases/genéticaRESUMO
Scaphoid fracture is the most common carpal fracture, accounting for 50%-80% of all carpal fractures in the Youngers and manual workers. The nonunion rate of scaphoid fractures was approximately 10-15%. Scaphoid nonunion can lead to wrist deformity, wrist collapse, ischemic necrosis, and traumatic osteoarthritis resulting in the loss of wrist function and seriously influence the patients' lives. Achieving bony union is essential for the treatment of scaphoid nonunion. Although many surgical procedures including various forms of bone grafting have been developed to improve bony union, there is no conclusion about which method is the most effective and optimal. In this review, we provide an overview of the diagnostic, classification and progress in the treatments of scaphoid nonunion fractures.