Improving Hip Implant Function and Survivorship by Personalizing Component Implantation

The long-term success of a total hip arthroplasty (THA) relies on many factors. Most importantly it depends on the appropriate implant choice and accurate component positioning. Traditionally, implant positioning has been determined by pre- and postoperative, plain radiographs. However, as our understanding of optimal implant positioning has evolved, some providers are utilizing advanced methods in order to assess optimal implant placement and account for the unique variations in patient joint kinematics.

CT imaging makes precision assessment of personalized component implantation possible. The article cited in this post emphasizes the importance of obtaining preoperative CT imaging in determining an accurate assessment of personalized THA implantation. This is not only helpful for the initial implantation of the components, but also postoperatively when indicating, “whether the native proximal femoral and acetabular orientations and the hip center of rotation have been appropriately reproduced and whether the components were implanted with accuracy compared to the preoperative template.”

Traditional x-rays may not capture the unique spino-pelvic dynamics, which are critical to the stability of total hip arthroplasty. In order to fully understand the optimal orientation, sizing and positioning of the components in a THA, it is highly advantageous to be able to reference 3D-CT images over standard radiographs.

This article highlights precisely what Kinomatic practices. Kinomatic’s Custom Surgical Planning allows surgeons to recreate the natural, biomechanical alignment of a patient’s hip leading to improved functional outcomes and increased implant survivorship. Kinomatic is able to achieve this by opting for more advanced imaging, 3D technology, and virtual reality preoperative surgical planning.

Original Article Source:

Behery O.A., Poultsides L., Vigdorchik J.M. (2020) Modern Imaging in Planning a Personalized Hip Replacement and Evaluating the Spino-pelvic Relationship in Prosthetic Instability. In: Rivière C., Vendittoli PA. (eds) Personalized Hip and Knee Joint Replacement. Springer, Cham.


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