A
6.1
Select the appropriate lumbar extension
Lumbar extension sizes correspond with the same size Exten-
sion Bar. For example, if the selected Extension Bar is a size 7,
the correct Lumbar Extension Rod will also be a size 7.
A
6.2
Determine contour and cut to length, if necessary
Use the Trial Rod to determine the contour of the rod portion
of the lumbar extension. Do not bend the T-section of the
lumbar extension which mates with the Extension Bar. Using
the Bending Pliers, contour the rod portion only to match the
anatomy. As an alternative, the USS Bending Irons can be
used for contouring.
If necessary, cut the rod portion of the Lumbar Extension Rod
to the correct length using the Rod Cutter. The length of the
rod portion of the lumbar extension should be at least equal
to the distance between the thoracolumbar junction and the
planned caudal implant. When using a Lamina Hook or Ala
Hook, additional length of 1.5 cm should be left to allow for
distraction.
A
6.3
Insert caudal Closure for Extension Bar
Prior to insertion, connect the Extension Bar with the lumbar
extension by sliding the Lumbar Extension Rod into the Ex-
tension Bar. Align the most caudal hole in the Extension Bar
with the most caudal hole in the Lumbar Extension Rod. The
implants should overlap completely to maximize future ex-
pansion capacity.
Place a golden Closure for Extension Bar in this position us-
ing the Inserter for Rib Support Lock. With a hammer, firmly
tap Inserter to seat the lock. The Lock Crimper or the lateral
Lock Inserter have to be used to ensure that the Closure is
fully seated.
Synthes
29
