With SonicWeld Rx®, KLS Martin has developed a path-breaking system for craniofacial osteosynthesis. Due to the consistent further development of the system, the field of application has been extended at interdisciplinary level. For example, dental and oral surgery also benefit from the advanced augmentation procedure: SonicWeld Rx® Dental.
The system combines cutting-edge ultrasonic technology with resorbable implants and thus creates unrivalled three-dimensional initial stability. Since all implant components are made of resorbable materials, no second surgery is required - a considerable advantage, especially for patients.
The core component of this procedure is what is referred to as the SonicWelder Rx, an ultrasound generator that is used to generate ultrasonic waves of precisely defined frequency with are then focussed with a sonotrode. The SonicPin Rx® is picked up with the sonotrode tip and placed onto a pilot hole. When activating the ultrasound generator, the pin is set vibrating via the sonotrode. The friction between the vibrating pin and the bone surface generates heat, liquefying the pin surface and thus enabling it to glide into the hole.
By changing the state of aggregation, the pin even penetrates into bone cavities that could never be reached using the conventional procedure. In addition, the head of the SonicPin Rx® bonds with the Resorb-x® film or membrane, creating a three-dimensional construction of unmatched initial stability. Combined with the special shell technique by Iglhaut, these properties open up new dimensions in horizontal and vertical augmentation.
The basis of the resorbable implants is a special type of polymer: Resorb x®, a 100 % amorphous, non-crystalline poly D, L-lactic acid (PDLLA). This does not only guarantee controlled and secure biological degradation but also exhibits the highest degree of histocompatibility.
The PDLLA materials complex polymer chains (1) absorb the water contents (H2O molecules) of surrounding body fluids (2) a process called hydrolysis. The stored water then initiates the degradation process, continuously breaking down the long polymer chains into ever-shorter molecular chains (3, 4). The human metabolism subsequently transforms the D-lactides and L-lactides into carbon dioxide and water. Both these compounds are finally discharged naturally. This degradation process is predictable and complete no residues are left.