`$row` doesn't look like you think it does. `$wpdb->get_results` will by default return an array of *objects*. Your code-- `'post_title'  => $row['Title']`-- treats an object like an array and should generate a Fatal Error, which you'd see if you had [debugging enabled][1].

> Fatal error: Cannot use object of type stdClass as array in ...

You need object syntax. Try (using a Core table):

    $rows = $wpdb->get_results( "SELECT * FROM wp_posts");
    foreach ($rows as $row) {
      // echo $row['post_author']; // doesn't work
      echo $row->post_author; // works
      echo '<br>';
    }



  [1]: http://wordpress.stackexchange.com/a/95983/21376