Humeral far-end posterior-lateral double-column fixing and locking bone fixation plate

Abstract

The invention relates to a bone fixation plate, in particular to a humeral far-end posterior-lateral double-column fixing and locking bone fixation plate. The humeral far-end posterior-lateral double-column fixing and locking bone fixation plate comprises a steel plate head portion, a steel plate rear portion main body, a steel plate front flank and a steel plate rear flank. The humeral far-end posterior-lateral double-column fixing and locking bone fixation plate is mainly used for treating a humeral low-section fracture and a far-end humeral intercondylar fracture by attaching the outline of a steel plate to the humeral shaft and a humeral far-end and outer side edge anatomy in form. The whole attachment of the outline of the steel plate and the humeral shaft and the humeral far-end and outer side edge anatomy in form originally needs multiple steel plate or a combined reconstructed steel plate, but now the whole attachment can be achieved only by needing one steel plate, and the fixing effect is very good. In addition, anatomic attached flanks turned in an arc shape are smooth, radial nerve irritation probability is low, and the humeral far-end posterior-lateral double-column fixing and locking bone fixation plate is especially suitable for humeral lateral approach and 'Triceps Hemi-peel Approach' suggested and selected by surgeons at present.

Description

technical field [0001] The invention relates to a bone plate, in particular to a posterolateral double-column fixed locking bone plate of the distal humerus. Background technique [0002] The human humeral shaft is in the shape of a cylinder as a whole, and the distal end is divided into the medial and lateral branches of the humerus, which are flat and wide in the form of a fan. There is an anteverted angle with the axis of the humerus, and the condyle of the humerus is thin, so supracondylar fractures of the humerus are prone to occur. , Fracture of the middle and lower part of the humerus, fracture of the intercondyle of the humerus, intercondylar fracture of the humerus complicated by supracondylar or fracture of the middle and lower part of the humerus. For many years, many hospitals have used Y-shaped plates to treat humeral condyle fractures. This steel plate, which resembles the English "Y", once played a historical role and treated many such patients. However, wit...

AI Technical Summary

Problems solved by technology

This steel plate, which resembles the English "Y", once played a historical role and treated many such patients. However, with the passage of time and technological progress, it was found through postoperative follow-up that the Y-shaped steel plate had the following problems: 1) Surgical separation Exposure to the triceps brachii has a large area, large trauma, and loss of blood supply to the fracture block, which affects fracture healing; 2) The steel plate needs to be shaped, which prolongs the operation time; 3) The broken plate rate is high, and the Y-shaped steel plate is easy for the surgeon to shape, and manufacturers often choose it Made of materials with low strength and low hardness, it is easy to break; at the same time, the biomechanical fixation is poor, the fracture does not unite, and long-term stress causes fatigue fracture

Others have designed the medial and lateral locking plate of the distal humerus for clinical use, but there are problems such as exposure of the ulnar nerve, excessive stripping of soft tissue on the fracture block, and delayed fracture healing.

In addition, the combination of these two plates is mainly used for the treatment of humeral condyle fractures, which are difficult to treat humeral condyle fractures, humeral shaft fractures, and lower humeral fractures.

At present, clinically, it has become a consensus that double plate fixation is required for fractures of the lower humerus. One anatomical plate combined with one reconstruction plate or two reconstruction plates are usually used for fixation. This method takes up a large volume of plates and is difficult to fix, and the soft tissue on the fracture fragment is easily stripped Too many, affecting fracture healing; at the same time, the reconstruction plate needs to be reshaped by the surgeon, resulting in prolonged operation time

In addition, when the surgeon chooses the currently recommended lateral approach to the humerus, the "Triceps Hemi-peel Approach", it is better to expose and protect the radial nerve (the radial nerve wraps around the posterolateral side of the humeral shaft, 6-16 cm away from the top of the humeral head, The average is about 12cm), the original internal fixation materials cannot fully meet the current innovation needs

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