3D printed suspension type navigation module

Abstract

The invention relates to a 3D printed suspension type navigation module. Specifically, the 3D printed suspension type navigation module is prepared in the way of 1, conducting preoperative consecutive thin-slice CT scan on a distal femoral fracture patient, inputting a Dicom file obtained after CT scan to Mimics software, conducting three-dimensional reconstruction of a knee joint model and virtual fracture reduction, selecting appropriate bone fracture plates and screws for virtual internal fixation, and determining an ideal internal fixation scheme; 2, designing and 3D printing the navigation module, wherein Mimics software is adopted to design various function keys; and 3, implementing specific surgery. The suspension type personalized navigation module is of a reversed structure of the knee joint bone landmark peripheral bone surface contour feature, can be well clamped, and better accords with the biological internal fixation principle, so that the problem that when an existing navigation module is clamped, a large area of soft tissue needs to be peeled off to cause damage to periostea can be effectively solved, and fracture end blood supply is effectively guaranteed.

Description

technical field [0001] The invention relates to a 3D printed suspended navigation module, which belongs to the technical field of clinical orthopedic surgery. Background technique [0002] Distal femur fractures are often caused by comminution of the fracture end and the involvement of the articular surface by the fracture line. Internal fixation requires high mechanical properties, which is currently a difficult point in trauma orthopedic surgery. Internal fixation surgery requires an incision and anatomical reduction of the fracture block under direct vision to achieve smooth and stable internal fixation of the articular surface. The fracture healing of the articular surface requires direct healing through the trabecular bone without absorption or callus between the fracture ends. That is, healing by first intention, which is convenient for early activities and early rehabilitation exercises, so as to prevent complications such as malunion, infection, stiffness, traumatic ...

AI Technical Summary

Problems solved by technology

[0006] The existing technology has the following deficiencies: (1) 3D printing technology assists limb fracture surgery, mostly using the printed whole fracture model entity for reference comparison during surgery, and there is no design and printing navigation module to assist surgery implementation

However, the further stripping of soft tissue and periosteum may still cause varying degrees of negative effects on the healing of comminuted fractures.