Superficial replacement prosthesis for elbow joint

Abstract

The invention relates to the technical field of artificial prosthesis and particularly relates to a superficial replacement prosthesis for an elbow joint. The superficial replacement prosthesis for the elbow joint comprises a prosthetic elbow joint head, wherein a mounting groove is formed in the prosthetic elbow joint head and is mounted at a distal end of a humerus; a connecting part, wherein one end of the connecting part is connected with the prosthetic elbow joint head, and the other end of the connecting part stretches along a proximal end of the humerus; and a bone grafting groove, which is arranged in the mounting groove and is used for accommodating grafted bone scraps. According to the superficial replacement prosthesis for the elbow joint, provided by the invention, the degree of freedom of the elbow joint of a sufferer is not restricted, and the traditional problem that the movement of the elbow joint is restricted is solved; by using the superficial replacement prosthesis for the elbow joint, the mass of bone section of the elbow joint of the sufferer is little, and the recovery and later-stage reconditioning of the elbow joint of the sufferer are facilitated; and furthermore, the bone grafting groove is further arranged and is used for being implanted with bone so as to supplement bone mass of the sufferer, the reducing of the weight of the elbow joint part is facilitated, the degree of comfort of the sufferer is increased, and the bone in the bone grafting groove after long-term recovery can be ankylosed with the humerus, so that the normal form and function of the humerus are restored.

Description

technical field [0001] The invention relates to the technical field of artificial prosthesis, in particular to an elbow joint surface replacement prosthesis. Background technique [0002] Elbow joint prosthesis replacement is suitable for patients with severely damaged joint structure. The design of elbow joint prosthesis must take into account the functional anatomy and biomechanical properties of the elbow. [0003] However, the existing total elbow joint replacement prosthesis has a large amount of osteotomy and a large trauma during the replacement, resulting in serious bone loss, which is not conducive to the recovery of the patient's elbow; and restricts the degree of freedom of the elbow, resulting in the arm being unable to rotate freely; in addition , the weight of the existing elbow joint replacement prosthesis is relatively large, and it affects the comfort of the patient. Contents of the invention [0004] In view of this, in view of the above technical proble...

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Problems solved by technology

[0003] However, the existing total elbow joint replacement prosthesis has a large amount of osteotomy and a large trauma during the replacement, resulting in serious bone loss, which is not conducive to the recovery of the patient's elbow; and restricts the degree of freedom of the elbow, resulting in the arm being unable to rotate freely; in addition , the weight of the existing elbow joint replacement prosthesis is relatively large, and it affects the comfort of the patient

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