601393 An assembly for use in a surgical procedure, including a frame capable of bone distraction and which receives and retains retraction arms for retraction of soft tissue during the surgical procedure； the frame including a first member including a recess which receives a first bone anchor and a second member which co-operates with the first member and receives a second bone anchor； the first member including at least one retaining arm which receives thereon a retractor arm； wherein, the second member is adjustable relative to the first member to allow distraction of bones to which the first and second bone anchors are attached.
