DJD External Fixator, Stryker - ShoulderDoc.co.uk

Frame Construction Step by Step
Figure 6
The pointed tip of the humeral axis guide is placed
medially under direct vision, allowing accurate
orientation of the axis reference pin.
1. Axis of rotation
Determine the axis of rotation external
landmarks and place the humeral (axis)
reference pin guide in line with the axis of
rotation (typically the pointed tip of the humeral
axis guide is placed on the medial side with the
pin guide on the lateral side) (Fig. 6).
2. Reference pin placement
The reference pin acts as a guide during frame
construction.
Insert laterally the 3mm diameter self
drilling/self tapping Apex ® 1. Axis of rotation
Determine the axis of rotation external
landmarks and place the humeral (axis)
reference pin guide in line with the axis of
rotation (typically the pointed tip of the humeral
axis guide is placed on the medial side with the
pin guide on the lateral side) (Fig. 6).
N.B.: Care should be taken to avoid injuring th
2. Reference pin placement
The reference pin acts as a guide during frame
construction.
Insert laterally the 3mm diameter pin through self the
drilling/self humeral (axis) tapping reference Apex pin guide in the axis
of rotation. For monolateral frame construction
insert the pin to a depth of 15-20mm. For
bilateral frames it is recommended to replace
the 3mm Apex humeral reference pin by a
3mm smooth transfixing Apex pin which is
inserted across the distal humerus (see
Bilateral Frame Option).
® 1. Axis of rotation
Determine the axis of rotation external
landmarks and place the humeral (axis)
reference pin guide in line with the axis of
rotation (typically the pointed tip of the humeral
axis guide is placed on the medial side with the
pin guide on the lateral side) (Fig. 6).
N.B.: Care should be taken to avoid injuring the
ulnar nerve during placement of the humeral guide
2. Reference pin placement
The reference pin acts as a guide during frame
construction.
Insert laterally the 3mm diameter pin through self drilling/self the
tapping humeral Apex (axis) reference pin guide in the axis
of rotation. For monolateral frame construction
insert the pin to a depth of 15-20mm. For
bilateral frames it is recommended to replace
the 3mm Apex humeral reference pin by a
3mm smooth transfixing Apex pin which is
inserted across the distal humerus (see
Bilateral Frame Option).
® pin through the humeral (axis)
reference pin guide in the axis of rotation. For
monolateral frame construction insert the pin to
a depth of 15-20mm. For bilateral frames it is
recommended to replace the 3mm Apex
N.B.: humeral The reference 3mm pin pin is a by reference a 3mm smooth pin and is the
essential transfixing reference Apex pin required which is to inserted accurately across the
assemble distal humerus the DJD (see II Bilateral frame and Frame to properly Option).
insert N.B.: The the humeral 3mm pin and is a ulnar reference pins. It pin will and be beis
the
removed essential after reference frame required construction. to accurately
3. Remove assemble the the humeral DJD II frame (axis) reference and reference to properly pin pin
guide. insert the humeral and ulnar pins. It will be
4. Placement removed after of the frame DJD construction.
II II frame on on the the
3. reference Remove the pin. humeral (axis) reference pin
The guide. hollow bored hinge of the DJD II is placed
4. over Placement the reference of the pin DJD so II that frame its hinge on the is
exactly reference in the pin. same axis of rotation as the
natural The hollow axis bored of rotation hinge of of the the elbow. DJD II Verify is placed that
the over distraction the reference device pin is so fully that compressed its hinge is
before exactly frame in the construction.
same axis of rotation as the
natural axis of rotation of the elbow. Verify that
the distraction device is fully compressed before
frame construction.
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