Cylindrical tension band pressurizing fixing apparatus for patellar fracture and service method of cylindrical tension band pressurizing fixing apparatus

Abstract

A cylindrical tension band pressurizing fixing apparatus for patellar fracture mainly comprises an outer sleeve, an inner rod, a primary tension band and a secondary tension band. The outer sleeve and the inner rod can be axially and freely sleeved together in a pluggable manner, and the primary tension band and the secondary tension band are sleeved on the outer sleeve and the inner rod. The cylindrical tension band pressurizing fixing apparatus for patellar fracture is a human body internal fracture inner fixing apparatus mainly used for patella transverse fracture or slightly comminuted patella fracture. The distance between the outer sleeve and the inner rod is shortened by the aid of tensioning of the tension bands, so that two fracture ends are fixed in a pressurized manner and are prevented from moving laterally, deformity of the two fracture ends is avoided, and fracture stability is maintained. Fracture boundaries can contact tightly, friction force is increased, fracture stability is increased, joints of a patient can be trained early, and fracture union is promoted.

Description

technical field [0001] The invention relates to the field of internal implantation instruments for internal fixation of traumatic orthopaedic fractures, in particular to a cylindrical tension band compression fixator for patella fractures and a method of using the same. Background technique [0002] Patellar fracture is one of the common types of fractures after human trauma, and it is a common disease in trauma orthopedics. After displacement of patella fractures, open reduction is generally required, anatomical reduction as much as possible, effective internal fixation, and early functional exercise can restore the joint function to the greatest extent. If the above treatment requirements cannot be met, complications such as traumatic knee arthritis, patellofemoral arthritis, and knee stiffness are likely to occur, which will seriously affect the patient's ability to work, and leave labor disabilities to varying degrees. [0003] Open reduction, anatomical alignmen...

AI Technical Summary

Problems solved by technology

If the above treatment requirements cannot be met, complications such as traumatic knee arthritis, patellofemoral arthritis, and knee joint stiffness will easily occur, which will seriously affect the patient's working ability and leave labor disabilities to varying degrees.

[0003] Open reduction, as far as possible anatomical alignment, mainly depends on the experience and technical level of the surgeon, while effective internal fixation and early functional exercise are more inclined to have good internal fixation equipment. However, there is no complete set of internal fixation for patella fractures at present. implanted device

At present, the internal fixation equipment for patella fractures used in various hospitals includes steel wire binding, Kirschner wire drilling and fixing, Kirschner wire plus tension band wire fixation, screw fixation, screw plus tension band wire fixation, etc., all of which have various shortcomings to varying degrees. , cannot meet the needs of therapeutic purposes

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