4 results about "Spinal fusion surgery" patented technology

A spine internal fixing device with a fusion function comprises a pedicle screw, the pedicle screw comprises a screw body, a screw tail is arranged at the upper end of the screw body, a nut is connected to the screw tail through internal threads, the screw body and the screw tail are of a honeycomb structure simulating cancellous bone, and solid external threads are arranged on the outer surface of the screw body. According to the spinal internal fixation device with the fusion function, a full-assembly simulation cancellous bone honeycomb structure of a pedicle screw rod nut and a matched connecting piece is prepared by adopting a 3D printing technology, and meanwhile, solid structures of key stress parts such as an external thread tip threaded connection surface are reserved so as to guarantee early mechanical fixation strength; after the components are assembled, a continuous bone ingrowth channel is formed, so that the transformation of internal fixation of the spine from temporary mechanical support to permanent osseous fusion is realized, and various intervertebral, intervertebral, posterior lateral and transverse process bone grafting fusion steps in a traditional spine fusion operation can be omitted.

This invention belongs to the field of medical device and medical image processing technology, and discloses a preoperative planning and guidance system for spinal fusion surgery based on three-dimensional image modeling. The system includes a medical image access terminal, a planning server, an intraoperative positioning workstation, a patient reference frame, instrument marking components, and a record management module. The planning server performs voxel spacing unification and coordinate normalization on preoperative images, reconstructs the target fusion segment model, and obtains a feasible insertion domain based on the difference between the candidate domain and the forbidden envelope domain. It jointly solves for screw and fusion device parameters and connecting component paths. During surgery, it calculates the entry point deviation, angle deviation, and depth deviation at a fixed sampling frequency, and triggers local re-registration and local replanning of affected segments using dual thresholds, achieving continuous guidance updates and process traceability.

The present invention relates to uses of a combination therapy of bone morphogenetic protein-2 and denosumab in spinal fusion surgery. When bone morphogenetic protein-2 and denosumab are used in combination during spinal fusion surgery as in the present invention, side effects frequently occurring due to spinal fusion surgery, such as osteolysis, inflammation, wound dehiscence, and bleeding, can be effectively prevented and treated.

Spinal implants for use in fusion procedures, such as sacroiliac fusion procedures, are provided. The implant provides mechanical stability when inserted into an anatomical structure(s) until fusion occurs. In certain embodiments, the implant may comprise a multi-surfaced, cross-sectional configuration, such as a 6-starred shaped (hexalobular) cross-sectional configuration, and radially dispersed longitudinal splines. When used for sacroiliac fusion procedures, the implant is configured to prevent sacroiliac joint spreading.