Ronda Medical
Implantcast

MUTARS® Distal Femur & GenuX® MK

Modular megaprosthesis for the distal femur with a rotating-hinge knee joint (GenuX® MK) — in tumors with major bone loss at the knee.

MUTARS® Distal Femur with GenuX® MK knee (official Implantcast render)
130°Flexion
150+Combinations
MB / FBPE insert
TiAl6V4 / CoCrMoMaterial
Clinical description

MUTARS® Distal Femur provides distal femoral reconstruction with replacement of the knee joint by a rotating-hinge prosthesis. It is combined with the modular GenuX® MK (Modular Knee) system, introduced in 2013, which offers an intraoperative choice between mobile-bearing and fixed-bearing polyethylene inserts.

The biomechanically optimized GenuX® MK coupling allows flexion of up to 130°. To simplify the system, the same stems are used for both the femur and the tibia, together with offset adapters offering 360° of rotational freedom. In tumor treatment, the GenuX® MK components are fully compatible with the standard MUTARS® products.

The system offers four femoral component sizes and four tibial component sizes, cemented and uncemented stems (in four lengths and nine diameters), dedicated augments and spacers — more than 150 possible combinations to tailor treatment to each case. For more extensive bone loss, EPORE® metaphyseal cones and components (porous titanium, for osseointegration) are available.

Indications
  • Tumors in the knee region with major femoral and tibial bone loss.
  • Distal femoral reconstruction with rotating-hinge knee arthroplasty.
  • Reconstruction following tumor resection or revision with extensive bone defects.
Key features

MB or FB insert

Intraoperative choice between mobile-bearing (MB) and fixed-bearing (FB) polyethylene.

130° flexion

Biomechanically optimized GenuX® MK coupling, with rotating hinge.

Over 150 combinations

4 femoral + 4 tibial sizes, augments and spacers for each anatomy.

MUTARS® compatible

GenuX® MK components are compatible with standard MUTARS® products in tumor treatment.

Product gallery
MUTARS® Distal Femur with GenuX® MK knee (official Implantcast render)
MUTARS® Distal Femur with GenuX® MK knee (official Implantcast render)
Technical specifications
Location
Distal femur + knee joint
Joint type
Rotating hinge, GenuX® MK coupling
Maximum flexion
130°
Polyethylene insert
Mobile-Bearing or Fixed-Bearing
Sizes
4 femoral × 4 tibial; offset adapters with 360° rotation
Bone-loss augmentation
Augments, spacers and EPORE® metaphyseal cones/components (porous titanium)
Materials
implatan® (TiAl6V4), implavit® (CoCrMo), UHMW-PE
Certifications & compliance
CE marking

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