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Logica
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Logica System has been desi-gned to meet the different needs on hip
replacement surgery.
The stems are symmetrical (straight) and are available in three
different versions: Standard and Mirror for a cement implant and CS
for a biological fixation.
Only one instrument set, to be used with all Logica stems (cemented
or cementless stems), allows for an intra-surgical choice based on
bone trophism.
Stems have a cervico-diaphyseal angle of 135° and a standard 12/14
cone suitable for metal or ceramic heads for complete replacements
and for endo or biarticular heads for use in traumatology.
The length of the highly polished neck increases according to the
stem size (offset ranging from 40.5 to 48 mm) and the main
dimensions increase proportionally as well.
The special low tapered profi le of the neck improves the articular
range of motion (ROM) up to values of 136º.
The two cemented versions, Standard and Mirror, are distally fi tted
with a polyethylene diaphyseal centralizer allowing for the proper
setting in the cement and an easy neutral insertion of the stem.
The FeCrNiMnMoNbN alloy used for the Mirror and Standard versions,
and the Ti6Al4V alloy for the CS version, are materials with
excellent and proven characteristics both from the mechanical and
bio-compatibility points of view.
Standard
• Collar and side fins on the anteroposterior face to improve the
cement pressurisation and avoid the varus positioning of the implant
• Neck surface smooth and matt
• Preassembled centralizer ensuring an easy neutral insertion of the
stem
• Stems available in six different sizes
CS
• Cementless stem complete with a double pair of antero-posterior
fins for the primary stabilisation
• Macro-roughened surface to facilitate osteointegration and
biological fixation of the prosthesis
• Stems available in seven different sizes
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