Posterior thighbone internal fixation bone plate

Abstract

The invention provides a posterior thighbone internal fixation bone plate, and belongs to the technical field of medical apparatuses and instruments in the orthopedics department. The posterior thighbone internal fixation bone plate is used for fixing the thighbone fracture from the posterior of a thighbone. According to the technical scheme, the bone plate is bent in the length direction, and the radian of the bending shape is matched with the forward-bending radian of the thighbone; meanwhile, the bone plate is bent in the width direction, the morphology of the bent plate face is matched with the morphology of the rear side surface of the thighbone, and locking screw holes and ordinary screw holes are distributed in the bone plate in the length direction. The traditional method that fixation is conducted from the front tension side of the thighbone is broken through, fixation is conducted from the pressure side for the fracture, innovation for the thighbone internal fracture fixation is achieved, and disadvantages of traditional thighbone operations are effectively avoided. Due to the arc-shaped design, the bone plate is tightly attached to the surface of the thighbone, the posterior thighbone internal fixation bone plate is suitable for residual displacement of different positions, further reset and fixation of fracture segments, ordinary tension screws and locking nails are combined, pressurized fixation and traction are combined, an extremely-good fixing effect is achieved, the operation time and the recovery time are greatly shortened, and pains of patients are effectively relieved.

Description

technical field [0001] The invention relates to a fixation device for femur fracture, which belongs to the technical field of orthopedic medical instruments. Background technique [0002] The femur is the longest long tubular bone in the human body, and the bone with the heaviest load. Its body is curved forward, and the upper and lower femoral shafts form an angle of 170o, and internally rotated by 30o. The femoral medullary cavity has a forward curvature. Larger than the appearance, especially in the non-cancellous bone region, where the medullary cavity is narrower or the apparent diameter is smaller and the curvature is larger, the cortical bone is thicker. There are blood vessels and nerves attached to the posterior femur. [0003] Femoral fractures are relatively common, accounting for about 10% of systemic fractures. In young patients, femoral shaft fractures are usually a sign of high-energy injuries and multiple injuries. Distal femoral fractures often occur in yo...

AI Technical Summary

Problems solved by technology

Accurate anatomical reconstruction of the femoral condyle in distal femoral fractures is necessary, but the placement of angle plates requires high technical requirements, and the use of angle plates is prone to knee varus and rotational deformity

If the diameter of the dynamic condylar screw is too large, it will cause bone loss and cannot be placed close to the distal femur. If the LISS is placed too far, it will also cause soft tissue problems.

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