Mettre un menu fix a gauche et prend compte du contenue au centre

Bonjour, comme le titre le dit je voudrais mettre un menu fix a gauche, mais quand je fait ca mon contenue par en bas et ne ce positionne pas a côté.. Comment faire svp.

Voici un screen du blem : http://prntscr.com/5dvvjg

Voici un bout du code du menu :

<div class="navbar navbar-default">
    <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-responsive-collapse">
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
        </button>
        <a class="navbar-brand" href="index.php"><?php echo $Title ;?></a>
    </div>
    <div class="navbar-collapse collapse navbar-responsive-collapse">
    <ul class="nav navbar-nav">
       <li class="active"><a class="mdi-action-receipt" href="index.php?pages=News"> News</a></li>
        <li class="active"><a class="mdi-navigation-refresh" href="index.php?pages=Update"> Update's</a></li>
       <li class="active"><a class="mdi-image-photo" href="index.php?pages=Gallery"> Gallery</a></li>
      <li class="active "><a class="mdi-content-mail" href="index.php?pages=Contact"> Contact us</a></li>
    </ul>
    <ul class="nav navbar-nav navbar-right">
<?php
if(isset($_SESSION['id']) && $_SESSION['id'] != '')
{?>
 <li class="dropdown">
        <a href="javascript:void(0)" class="dropdown-toggle mdi-action-account-circle" data-toggle="dropdown"><b> Welcome <?php echo $_SESSION['UserNm'] ;?> <?php echo $_SESSION['UserPrNm'] ;?></b></a>
        <ul class="dropdown-menu">
          <li class="dropdown-header mdi-action-account-circle"> Welcome  <?php echo $_SESSION['UserNm'] ;?> <?php echo $_SESSION['UserPrNm'] ;?> :</li>
           <li class="divider"></li>
          <li><a class="mdi-action-account-circle" href="index.php?pages=Account"> My account</a></li>
          <li><a class="mdi-communication-chat" href="index.php?pages=Messages"> Messages <span class="badge">42</span></a></li>
          <li><a class="mdi-social-notifications"href="index.php?pages=Notification"> Notifications <span class="badge">42</span></a></li>
          <li><a class="mdi-action-book" href="index.php?pages=Projects"> My Projects <span class="badge">42</span></a></li>
          <li class="divider"></li>
          <li class="dropdown-header mdi-action-settings-applications"> Settings :</li>
          <li><a class="mdi-action-settings" href="index.php?pages=Settings"> Account Settings</a></li>
          <li class="divider"></li>
          <li class="dropdown-header mdi-action-stars"> Extra :</li>
          <li><a class="mdi-content-clear" href="index.php?pages=Logout"> Logout</a></li>
        </ul>
      </li>
<?php } else { ?>
  <li class="active"><a class="mdi-communication-vpn-key" href="index.php?pages=Register"> Register</a></li>
  <li class="active"><a class="mdi-communication-vpn-key" href="index.php?pages=Login"> Login</a></li>
<?php } ?>
    </ul>
  </div>
</div>
<div class="btn-group-vertical topmenu">
    <a href="javascript:void(0)" class="btn btn-default">Button</a>
    <a href="javascript:void(0)" class="btn btn-default">Button</a>
    <a href="javascript:void(0)" class="btn btn-default">Button</a>
    <a href="javascript:void(0)" class="btn btn-default">Button</a>
</div>

Merci pour répondre.