A tradition of success
X-acta is a cemented double-tapered stem manufactured in high-nitrogen stainless steel, provided with a PMMA distal centralizer to facilitate stem positioning and uniform cement mantle distribution. On the basis of its clinical success, a 2.5 mm shortened X-acta stem was designed to facilitate stem implantation through the AMIS approach and reduce bone removal.
The collarless, double-tapered, polished design that inspired the X-acta stem has proven successful for more than 45 years of Total Hip Replacement (THR).
As a collarless stem, X-acta allows surgeons to intra-operatively accommodate most patient anatomies and indications, including fracture, primary and revision cases. It may be chosen as the SOLE system for a surgeon's practice.
Three depth markings spaced 4 mm apart are etched on the proximal part of the X-acta stem.
The markings allow for the correction of the leg length by adjusting the depth of the stem insertion.
The same markings are also indicated on the rasps.
The X-acta stem is provided with a winged PMMA distal centralizer that facilitates the stem positioning and optimizes the load transfer.
1 - SURFACE TREATMENT
The mirror polished finishing provides a cement-friendly surface which optimizes the transfer of compressive forces
2 - MIRROR POLISHED NECK
The mirror polished surface of the neck minimizes soft tissue damage and liner wear, making the X-acta stem suitable for double mobility liners
3 - DOUBLE-TAPERED DESIGN
X-acta double-tapered design provides axial and rotational stability
4 - DEPTH MARKINGS
Three depth markings spaced 4 mm apart allow for the correction of the leg length by adjusting the depth of the stem insertion
5 - MATERIAL
Forged High Nitrogen Stainless Steel (ISO 5832-9)
6 - PMMA DISTAL CENTRALIZER
The PMMA distal centralizer aids stem positioning and optimizes load transfer
X-acta stem is available in 5 sizes and 4 offsets, both in the standard and shortened design
The anterior approach, strengthened by years of clinical experience, is the only technique which follows a path both intermuscular and internervous and therefore lowers the risk of damaging periarticular structures such as muscles, tendons, vessels and nerves.
Medacta International is the world leader for educating and supporting surgeons in their pursuit of Anterior Minimally Invasive Surgery (AMIS). Reference Centers, located throughout the world, provide the necessary AMIS educational experience and Medacta offers continuous support for surgeons, as well as constantly improving and developing the industry’s most specialized instrumentation platform.
Using X-acta you can enter Medacta International’s world of AMIS.
The AMIS Mobile Leg Positioner will be supplied as part of the instrumentation to help ensure effective and reliable positioning of the leg during surgery. Traction, adduction and hyperextension have never been so easy.