A New Canine Cementless Hip Prosthesis System
Canine hip dysplasia is a very prevalent disease in veterinary medicine today. Cemented canine hip implants have been an established surgical alternative for many years, but recently the shift has been to cementless hip implants. The primary reason for using a cementless prosthesis is to avoid the many systemic problems that can potentially occur with cemented implants. Utilizing the body’s natural healing interaction has become a major consideration as it has in human orthopedic medicine. Unfortunately conventional canine cementless designs have serious inherent problems such as the potential proximal femoral shaft fracture, implant loosening, and rare revision successes.
Because of the inherent problems of other cementless systems, the HELICA screw prosthesis was conceived. The intention of this type of prosthesis is to eliminate the key problems by promoting a firm implant fixation. This contributes to painless post operative weight bearing and rapid recovery. The HELICA’s femoral and acetabular implant components have self-cutting threads that allow firm anchorage into the bone. The surfaces of the screw prosthesis are rough-molded to provide optimal fixation and osteointegration into the bone. The HELICA design also allows the prosthesis to be re-implanted several times during the procedure to assure optimal biomechanical alignment.
When compared to a conventional cementless hip prosthesis, The HELICA Screw prosthesis provides the following advantages:
- Only a minor bone resection– saving as much of the bones natural structure as possible
- Screw implants provide firm anchorage into the bone
- Dramatically lowers the patients post operative pain
- Promotes rapid healing and osteointegration
- Mimics the joints natural biomechanical forces
- Can be revised and re-implanted easily without complications
The HELICA Screw Prosthesis was developed with the cooperation of Doctor Volker Hach, head of the veterinary clinic Tierärztliche Klinik für Kleintiere located in Frankfurt, Germany.