ABSTRACT
<p><b>OBJECTIVE</b>To summarize experiences of operative treatment for Essex-Lopresti injury, and analyze the effect of the compare repair of interosseous membrane of forearm(IOM)on the forearm function.</p><p><b>METHODS</b>Twenty-four patients of Essex-Lopresti injury were treated from January 2005 to December 2013, 16 patients(group A) with radius and/or ulna fractures were treated with open reduction and internal fixation of radius or ulna and repair of forearm bone membrane at the same time, and then treated with open reduction and internal fixation of head of radius, as well as lower ulnar joint fixation or repair of wrist triangle fiber complex. Another 8 patients without radius and or ulna fractures(group B) were treated with open reduction and internal fixation of head of radius, as well as lower ulnar joint fixation or repair of wrist triangle fiber complex. The wrist joint function was evaluated using Cooney wrist functional rating index, and the elbow joint function was evaluated using Mayo elbow-performance score 2 weeks and 2 years after operation.</p><p><b>RESULTS</b>According to Cooney wrist functional rating index, 4 patients in group A got a fair result and 12 poor, 2 patients in group B got a fair result and 6 poor 2 weeks after operation; 8 patients in group A got a good result, 6 fair and 2 poor, 5 patients in group B got a good result, 2 fair and 1 poor 2 years after operation. According to Mayo elbow-performance score, 2 patients in group A got a good result, fair and 6 poor, 1 patient in group B got a good result, 5 fair and 2 poor 2 weeks after operation; 8 patients in group A got a good result, 6 fair and 2 poor, 4 patients in group B got a good result, 3 fair and 1 poor. There were no statistically differences between two groups 2 weeks and 2 years after operation.</p><p><b>CONCLUSIONS</b>It is important to restore the length of radius and/or ulna and maintain the dynamic stabilization of elbow and wrist for treat Essex-Lopresti injury. The repair of IOM has no effect on the forearm function.</p>
ABSTRACT
Os valores de normalidade da densidade mineral óssea (DMO) da extremidade distal de rádio-ulna em 120 gatos clinicamente saudáveis foram determinados usando-se a técnica de densitometria óptica em imagens radiográficas. Para a padronização da técnica e interpretação da DMO, foi utilizado um programa computacional especialmente desenvolvido para a medida de densidade óptica em imagens radiográficas, que contém a imagem radiográfica da extremidade distal de rádio-ulna, e uma escala de alumínio (penetrômetro), usada como referencial densitométrico, permitindo a medida da densidade mineral óssea do rádio-ulna correspondente ao valor em milímetros da escala. Os valores médios da densidade mineral óssea da extremidade distal do rádio-ulna foram de 1,98 ± 0,52mmAl para os machos e de 1,76 ± 0,41mmAl para as fêmeas. Foram observadas correlações estatisticamente significativas entre a DMO, o peso e a idade dos animais estudados (P<0,0005).
The normal values of bone mineral density (BMD) at the distal end of the radius-ulna were established in 120 clinically healthy cats, using the technique of optical densitometry in radiographic images. The interpretation of BMD was performed using a computer software especially developed for measuring the optical density of the radiographic films, containing radiographic image of the distal extremity of the radius-ulna, and steps of an aluminum scale (penetrometer), used as a densitometric reference. This allowed the measurement of the BMD corresponding to the value in millimeters of the scale. The BMD mean values of the distal end of radius-ulna were: 1.98 ± 0.52mmAl for male and 1.76 ± 0.41 for female cats. Significant correlations were observed between BMD and weight and BMD and age (P<0.0005).