Page 73 - Arthroscopic Knot Tying: An Instruction Manual

P.66

Weston Knot (Fig. 38)

FIGURE 38. A-G. Weston knot.

The Weston knot was originally used in obstetrics and gynecology (40 ) and later reported in the
orthopaedic literature (6 ).

 The post limb should be one half the length of the loop limb.
 Throw an underhand half hitch around the post (Fig. 38A ).
 Hold this half hitch between the thumb and index finger of the nondominant hand.
 Pass the tail of the loop strand between the loop and post with the loop strand passing behind the
post (Fig. 38B ).
 Wrap the loop around the post and pass it behind and through the first loop thrown (Figs. 38C, D ).
 Tension the knot by gently pulling on both the loop and the post strands simultaneously. Do not
pull too hard on the loop strand or the knot will lock prematurely (Fig. 38E ).
 Advance the knot by pulling on the post limb while pushing the knot with the knot pusher on the
post strand (Fig. 38F ).
 While maintaining tension on the post strand and using the knot pusher to keep the knot in place,
pull the loop strand to lock the knot (Fig. 38G ).

Although the initial description of the knot did not include locking with half hitches, our experience shows
that locking with half hitches improves knot security (unpublished data).