Claris
Natural adaptability
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CLARIS Titanium Instrumentation is
specifically adapted to lumbo-sacral and thoraco-lumbar
arthrodesis. The benefits of CLARIS are quick and easy
implementation, reduced operating time, and MRI compatibility. |
 High Mechanical
Strength
Facet Joints
Protection The omniaxial connector is designed
for the protection of the cranial facet joint when used in the upper
part of the construct.
Versatility
The omniaxial connector offers the perfect balance between strength
and adaptability.
Easy Positioning
The omniaxial connector provides the ultimate solution to the
surgeon to link the pedicle screw to the rod, without stressing the
surrounding anatomical structures.
Spine surgery technique has evolved since the fixation of spinal
deformities by Paul Harrington. Fixation techniques have been
enhanced with the use of pedicular screws by Raymond Roy Camille in
France and Arthur Steffee in the USA. Today, many systems have been
developed and are used for the fixation of the different segments of
the spine. These systems often combine pedicle screws, rods, and
connecting devices.
Most of the fusion techniques in lumbosacral arthrodesis are
commonly used by spinal surgeons. Nevertheless, technical
difficulties can occur due to anatomical changes in the pedicle.
While connecting the rod to the screws, fixations must be achieved
quickly.
CLARIS instrumentation improves the fixation technique of the lumbar
and sacral spine. This instrumentation combines pedicular screws,
rods, and omniaxial connecting devices. The mechanical construct
between the pedicular screws and the rod is provided by the
omniaxial connector, which combines three mechanisms that allow
freedom of motion:
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1. the rotation of the omniaxial
connector around the axis of the pedicular screw 2.
three rotations of the ball joint between the omniaxial
connector 3. the rotation and the
translation of the rod through the omniaxial connector
The combination of these motions allows the surgeon to quickly
connect the pedicle screw to the rod, without any mechanical
strain. The results are :
1. substancial reduction in operating time.
2. quality of bone anchorages due to lack of strain,
particularly for elderly patients for whom bone strength is low. |
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Once the screws are
connected to the rod, stability of the construct is obtained by:
1. tightening of the nut on the pedicular screw, thus locking
the rotation between the screw and the omniaxial connector and the
three rotations between the two parts of the omniaxial connector
2. tightening of the set screw on part 2 of the omniaxial
connector, thus locking the rotation and the translation of the rod.
An added advantage is that realization of the construct avoids any
conflict with the cranial facets joints at the upper limit of the
fixation.
Available in titanium, this device is compatible with the X-ray and
MRI postoperative examination. The instrumentation is easily
mastered enables high standard spinal surgeries. |
