The value of preliminary overhead traction in the closed management of DDH

We aimed to discover whether there is a difference in incidence of growth disturbances of the proximal femoral epiphysis and final results in two similar groups of children with developmental dislocation of the hip (DDH) treated with (107 hips) and without (48 hips) overhead traction. The only variable between the groups was the use of preliminary traction. All children were followed up until at least the age of 14 years. Pre-reduction traction should be used among children treated non-operatively for DDH who are older than one year of age and/or have high-dislocated hips. In cases that are diagnosed late, this treatment would reduce the risk of severe growth disturbances and increase the probability of a favourable long-term outcome

Análise radiográfica dos fatores prognósticos no tratamento do quadril displásico inveterado Radiographic analysis of prognostic factors in DDH treatment after walking age

OBJETIVO: Avaliar os resultados do tratamento cirúrgico da Displasia do Desenvolvimento do Quadril na idade da marcha. MÉTODOS: Avaliamos 33 quadris operados entre novembro de 1992 e setembro de 1997. A média de idade foi 4 anos e 5 meses na ocasião da cirurgia e 11 anos e 7 meses quando avaliamos os resultados. O seguimento médio foi de 10 anos e 2 meses. Realizamos o encurtamento femoral, redução cruenta e osteotomia pélvica (Salter ou Chiari). Radiograficamente avaliamos: grau da luxação, índice acetabular; ângulo acetabular; arco de Shenton; linha de Hilgenheiner; coeficientes c/b, c/h, centro-acetábulo e cabeça-acetábulo; largura da cartilagem trirradiada; relação cabeça trocânter; esfericidade da epífise femoral; ângulo de Wiberg; necrose avascular e anisomelia. Os parâmetros radiográficos foram avaliados nos períodos pré-operatório, pós-operatório imediato e tardio. RESULTADOS: Verificamos estatisticamente melhora significante destes no momento pré-operatório para o pós-operatório imediato (p=0,0001) porém não houve variação significante entre o pós-operatório imediato e o tardio (p=0.5958). CONCLUSÃO: Pela classificação utilizada para avaliação dos resultados observamos 23 (69,70%) bons, 5 (15,15%) regulares e 5 (15,15%) maus resultados.<br>OBJECTIVE: To evaluate the results of surgical treatment of Developmental Dysplasia of the Hip (DDH) treated in the walking age. METHODS: We evaluated 33 hips in 30 patients operated between November of 1992 and September of 1997. The mean age was 4 years and 5 months at surgical period and the mean age at the last evaluation was 11 years and 7 months. The mean follow up time was 10 years and 2 months. We performed femoral shortening, open reduction and pelvic osteotomy (Salter or Chiari). Radiographic assessment considered: acetabular index; acetabular angle; Shenton's line; Hilgenreiner's line; the c/b, c/h, acetabulum-center and acetabulum-head ratios; the width of the triradiate cartilage; the trochanter and femoral head relationship; femoral head sphericity; Wiberg angle; avascular necrosis and leg length discrepancy. These parameters were measured and compared in pre-operative, early and late post-operative period. RESULTS: After statistical analysis we observed a significant decrease in these parameters from pre-operative period to immediate post-operative period (p=0.0001) and those have not changed between the immediate post-operative period and late post-operative period (p=0.5958). CONCLUSION: By the classification used we observed 23 (69.70%) good, 5 (15.15%) regular and 5 (15.15%) bad results. None of these radiographic parameters were relevant to predicting final results

Effects of Self Regulation vs. External Regulation on the Factors and Symptoms of Academic Stress in Undergraduate Students

The SRL vs. ERL theory has shown that the combination of levels of student self-regulation and regulation from the teaching context produces linear effects on achievement emotions and coping strategies. However, a similar effect on stress factors and symptoms of university students has not yet been demonstrated. The aim of this study was to test this prediction. It was hypothesized that the level of student selfregulation (low/medium/high), in interaction with the level of external regulation from teaching (low/medium/high), would also produce a linear effect on stress factors and symptoms of university students. A total of 527 undergraduate students completed validated questionnaires about self-regulation, regulatory teaching, stress factors, and symptoms. Using an ex post facto design by selection, ANOVAs and MANOVAs (3 × 3; 5 × 1; 5 × 2) were carried out. The results confirmed that the level of self-regulation and the level of regulatory teaching jointly determined the level of stress factors and symptoms of university students. Once again, a five-level heuristic of possible combinations was configured to jointly determine university students’ level of academic stress. We concluded that the combination of different levels of student regulation and regulation from the teaching process jointly determines university students’ level of academic stress. The implications for university students’ emotional health, stress prevention, and well-being are established