[Plugin: Simple Section Navigation Widget] Showing a Different Sidebar

There are certain posts where I want to show the sidebar that would be appear on a different page. For example, on each individual news story I would like to sidebar that would normally show for the page listing the news to show. To do this I used the following code:


$temp = $wp_query;
$wp_query = null;
$wp_query = new WP_Query('page_id=37');
$wp_query->the_post();

get_sidebar();

$wp_query = null;
$wp_query = $temp;
wp_reset_postdata();

Do you think this is the best way to do this? Is there a better way to show the sidebar for a particular page within single.php?

Thank you.