theme_hook_suggestions for string wildcard
What you'd need to do use the theme suggestions. So you'd have 1 template file e.g. page--fixed.tpl.php

Then in template.php you could have an if statement e.g.:

function THEME_preprocess_page(&amp;$variables) {
 $arg1 = arg(1);
 $arg0 = arg(0);
 if($arg0 == 'models' &amp;&amp; ($arg1 = 'model-names' || $arg1 = 'anothermodel')){
  $variables['theme_hook_suggestions'][] = 'page__fixed';
 }
}