subsidence, fracture or loosening of the components. Implants MUST NOT be re-used because
the fatigue strength and mechanical properties of the implant may be impaired from previous
actions.
IMPORTANT: Adjunctive proximal fixation / support is
required
for Size 10, 11 and 12 monobloc,
11mm and 12mm diameter modular 250mm length stems and 13mm diameter 300 length
modular stems and is
recommended
for all the Securus and Furlong® H-A.C. revision stems,
both monobloc and modular. Where there is loss of proximal bone stock, or poor proximal bone
quality, bone grafting or other adjunctive proximal fixation / support is advised for implant
stability. It is important that the prosthesis is not distally fixed without proximal support.
With Securus modular revision stems it is essential that the stems are assembled to the correct
technique as specified in the operational technique and that the through bolt is tightened to the
correct torque value. It is also essential that the cap sealing off the screw connection is securely
tightened to the correct torque and that care is taken during placement.
When using distal screw fixation, it is imperative that the screws do not see an axial
load. The screws are intended to provide torsional rigidity for fracture cases and not to
support the stem. If the latter does occur they may be liable to fracture. They must be
used with caution for distal stems less than 13mm.
Curved stems are provided to follow the natural bow of the femur.
Care should be taken not to over tighten bone screws. Ensure the appropriate selection of bone
screw length and location to avoid damage to underlying soft tissue areas. As the manufacturer,
JRI Ltd can take no responsibility for damage, breakage or other adverse effects caused as a
result of the failure of any person to follow these instructions or any other relevant applicable
JRI instructions. The Surgeon is responsible for ensuring optimum implantation of the prosthetic
device using JRI Instrumentation.
Post-operative:
Patients should be advised by the surgeon about the post-operative
recuperative regime and be given suitable directions or warnings. Accepted surgical practices
should be followed with regard to patient handling, post-operative therapy, unassisted physical
activity and trauma. The incidence and severity of complications are usually greater in surgical
revisions than primary operations.
5
EN
155-030 (issue 6).indd 5
7/5/2012 6:15:50 PM
Superceded
