Initia® Total Hip System

Initia® Total Hip System

Initia® Total Hip System

Initia total hip system is an artificial hip joint developed with expectation of improving patients' QOL around the world.

Initia® Total Hip System

Tapered-Wedge Stem Design

The tapered-wedge stem design is rotation resistant with its medial and lateral sides in close contact with the cortical bone. Bone preservation and gradual load transfer from proximal to distal can be achieved, and the stem is also suitable for minimally invasive procedures because of its laterally reduced design, thin shape, and short length.

The stem is available in smaller size pitches to be applicable to a wider range of patients.

outline of stem size

Surface Treatment Technology

Ti-Growth ® C *
The used plasma coating technology used has proven clinical results worldwide. The thickness of the coating on the distal 10mm length of area sprayed increases gradationally from distal (0.2 mm) to proximal (0.5 mm) to prevent stress concentration.

* “Ti-Growth” is a registered trademark of LINCOTEK TRENTO S.p.A.

Size Variation

A greater variety of stem sizes allows for a wider range of stem choices possible intraoperatively. 17 sizes with 2 offset options (STD and HO) are available.

Acetabular Shell

Initia acetabular hemispherical shell is available in three versions: No hole,
3 hole and Multi-hole hemispherical shell. It's polished inner surface minimizes backside wear of the polyethylene liner, and the outer surface coated with "Ti-Growth ® C" enhances initial stability.

Shell Hole Type

Acetabular Liner

Initia Acetabular Liner is made of GUR 1020 resin moderately crosslinked ultra-high molecular weight polyethylene. Crosslinked at 75kGy gamma irradiation, annealed at 120⁰C, and sterilized with gas plasma. The locking tabs of the liner fit corresponding locking grooves of the shell to provide rotational stability.

Liner Type


High strength, toughness, and low wear are key features of “BIOCERAM AZUL®”, Kyocera’s own ceramic technology composed of a high purity alumina matrix with zirconia reinforcement for increased strength, toughness, stability, and wear resistance.

“Initia” and “BIOCERAM AZUL” are registered trademarks of KYOCERA Corporation in the United States and Japan.

Ⓒ2019 KYOCERA Corporation
This web page is for United States only.