Limacorporate SMR Gebrauchsanweisung Seite 8

resistance to infection; • drug use or alcoholism; • marked osteoporosis or osteomalacia; • patient's resistance
to disease generally weakened (HIV, tumour, infections); • severe deformity leading to impaired anchorage or
improper positioning of implants; • use our combinations with products, prosthesis or instruments of another
manufacturer; • errors of operative technique.
3. WARNINGS
3.1. PRE-OPERATIVE PLANNING
LimaCorporate products should be implanted only by surgeons familiar with the joint replacement procedures
described in the specific surgical techniques. Pre-operative planning, through radiographic templates in
different formats, provides essential information regarding the type and size of components to be used and
the correct combination of devices required based on the anatomy and specific conditions of each patient.
Inadequate pre-operative planning can lead to improper selection of the implants and/or incorrect implant
positioning.
In selecting patients for surgery, the following factors can be critical to the eventual success of the procedure:
• Partial Shoulder replacement: in cases with a deficient and unreconstructable rotator cuff, a CTA-head
is indicated;
• Total Shoulder replacement: the rotator cuff must be intact or reconstructable. In cases with a deficient and
unreconstructable rotator cuff, a hemiprosthesis with a CTA head or a Reverse Total Shoulder Arthroplasty
is indicated;
• Reverse Shoulder replacement: the bone stock of the glenoid and humerus must be able to support the
implant. In cases with significant bone loss and in which adequate fixation on the glenoid side cannot be
obtained, a hemiarthroplasty with a CTA-head should be performed.
• Bone Grafting (not approved in Canada): once removed the graft should be inspected to ensure the bone
quality is adequate for use with the glenoid bone grafting technique. The glenoid bone grafting technique
should never be used with poor quality bone, as it may compromise bone healing.
NOTE: with CTA heads the use of Trauma Humeral Bodies is recommended to avoid possible
impingement between the head and the body when using the Finned Humeral Body and the eccentric
tapers in the lower position.
NOTE: the size large Metal Back Glenoid is not suitable for coupling with the 36 mm Glenospheres
and the 40 mm Glenospheres.
NOTE: For glenoid bone grafting techniques (not approved in Canada) it is important to use a
peg size Medium, Long or X-Long in order to enable a minimum section of the peg into the native
bone, providing component stability. The following table identifies the allowed ( ) / not allowed ( )
combinations between the bone graft thickness and the pegs dimensions:
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