Karey Revision Stem Characteristics:

Karey Revision Stems Surgival  specially designed for revision surgeries. The quadrangular section design and lengthening of the distal portion stays in line with the philosophy of the Karey Primary Stems.

The progressive trapezoidal geometry  enables optimal adaptation of the stem and both anti-translational and anti-rotational fixation that provides perfect primary stability while preventing the hip prosthesis from sinking.

Specifications

• Progressive offset.
• Each size is available in standard offset (SO) and high offset (HO).
• 12/14 taper.
• Support collar on the calcar to improve primary stability.
• 135º cervical–diaphyseal angle.
• Various lengths per size.
• Available in cemented and cementless versions.

Revision Karey HA Cementless

• Made from Titanium Alloy (Ti6Al4V).
• Hydroxyapatite spray coating  (130 µm) that provides a porous surface with excellent biocompatibility and generates an ideal structure for bone growth.
• Two  orifices for anchoring and tensioning the trochanter region.
• Metaphyseal semicircular macrostructures: increase the contact surface, preventing sinking and providing an antivarus effect.
• Longitudinal grooves: Increase bone–implant contact surface, preventing rotation, reducing distal rigidity with respect to the metaphyseal portion and improve diaphyseal vascularisation of the femur with the prosthetic.
• Distal opening that reduces implant rigidity and improves prosthesis adaptation to the curvature of the femur.
• Use: Cementless

Sizes and lengths per size

• SIZE 9: 175 mm and 195 mm
• SIZE 10: 180 mm and 200 mm
• SIZE 11: 180 mm, 200 mm and 220 mm
• SIZE 12: 190 mm, 215 mm and 240 mm
• SIZE 13: 200 mm, 225 mm and 250 mm
• SIZE 14: 210 mm
• SIZE 16: 220 mm
• SIZE 18: 230 mm
• SIZE 20: 250 mm

Each size of metaphyseal body is also available in STANDARD and HIGH OFFSET

Cemented Karey Revision C

• Made of Nitrogen Stainless Steel (ISO 5832-9).

• Uniform geometry: when joining the anteroposterior and mediolateral faces, this reduces the tension in the interface and prevents both prosthesis movement and loosening.

• Elongated distal portion: to provide better diaphyseal anchoring when surpassing the cortical lesions.

• Polished surface with rounded edges: Ensure correct adhesion to the cement, preventing the concentration of tension.
• Use: Cemented

Sizes and lengths per size

• SIZE 9: 175 mm and 195 mm
• SIZE 10: 180 mm and 200 mm
• SIZE 11: 180 mm, 200 mm and 220 mm
• SIZE 12: 190 mm, 215 mm and 240 mm
• SIZE 13: 200 mm, 225 mm and 250 mm
• SIZE 14: 210 mm
• SIZE 16: 220 mm
• SIZE 18: 230 mm
• SIZE 20: 250 mm

Each size of metaphyseal body is also available in STANDARD and HIGH OFFSET