The porous coating in hip, knee and shoulder implants

Porous coating is a technique that has been developed and perfected by Biovac for more than thirty years, with the aim of facilitating osseointegration and, therefore, improving the quality of life of people who need hip, knee and shoulder implants.

Osseointegration contains a fundamental biological process, which allows the natural and lasting union between the bone and the implant. But, for this union to be effective, it is essential that the implant offers an adequate surface so that the bone can grow and fix it naturally.

Why is the porous coating, also known as sintered microspheres, the best option for osseointegration in hip, knee and shoulder implants?

Because the application of the coating on the implant is done manually. That is, the process achieves complete coating, regardless of the geometry of the implant. In addition, the different diameters of the microspheres offer real porosity, which in turn facilitates osseointegration in any type of implant and surface.

Medical plate of the knee joint.

Medical plate of the hip joint.

Medical shoulder joint plate.

The porous coating in hip implants

The porous coating is a technique that applies the corresponding material on the hip implant. In this way, the biological fixation of the bone to the implant is facilitated.

The porous coating can be sintered spheres or irregular powder, and can have different degrees of porosity and thickness. Among its mains benefits we find the following:

  • Stimulates bone growth
    One of the main advantages of the porous coating in hip implants is its osteoconductive factor. That is, it is capable of stimulating bone growth inside and around the implant. Thanks to this characteristic, the implant in the bone enjoys greater integration and, therefore, an increase in stability.
  • Increases the initial stability of the implant
    The porous coating has a high coefficient of friction, which increases the initial stability of the implant. The greater fixation of the implant on the bone reduces the risk of strange movements and, thus, improves patient safety. Definitely, you gain firmness.
  • Resistant to corrosion and particle migration
    Another advantage of the porous coating is that it is resistant to corrosion and particle migration. This means that the implant remains stable over time and does not wear out or degrade easily, which reduces the need for subsequent interventions

The porous coating on knee implants

The porous coating consists in the application of a layer of material over the knee implant. And, as in the case of the hip, it facilitates biological fixation.

  • Improvement of osseointegration
    The porous coating favors osseointegration. Thanks to this, the porous material allows bone cells to grow through the implant coating, so it improves implant fixation and thus reduce the risk of slippage.
  •  Produces an elasticity equal to that of the bone itself
    The bone is motivated to its growth by a material used similar to the bone composition (HA), which helps to ensure that the patient’s elastic capacity is not lost. In addition, it facilitates loads on the knee, offering great resistance and strength, independent of any movement.
  •  More intense, immediate and biological fixation
    The porous coating guarantees an immediate (2/3 weeks) and subsequently biological robust fixation. Bone grows through the implant coating, ensuring a stronger and more durable fixation. In addition, the risk of long-term complications is reduced.

The porous coating in shoulder implants

The porous coating in shoulder implants helps to be a much less invasive method. This technique dominated by Biovac is applied manually on the implant, which helps it to adapt and osseointegrate.

  • Greater biological fixation
    One of the great benefits of porous coating on shoulder implants is the biological fixation it offers. In other words, the ability of the bone to grow through the porous surface of the implant and, therefore, to fix it on it, increasing the contact surface. This method guarantees its durability and resistance.
  • Increased stability and modularity
    As we have said in the cases of knees and hips, the porous coating also makes possible to coat any geometry of the shoulder implant. This quality increases its resistance and reduces the risk of wear. In addition, being a modular method, it allows selecting different sizes of the stem, body and head. That is, a more personalized implant is performed.
  • Facilitates fixation and bone growth
    The porous coating technique in shoulder implants facilitates both their anchorage and growth. In addition, it allows bone to grow through the pores of the implant, thus improving biological fixation and also reducing the risk of loosening.

Do you need more info?

Contact us if you have any questions or want more information about porous coatings. 360º, personal and exclusive attention.


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