External rotation osteotomy adjuster for knee joint replacement surgery

Abstract

The invention discloses an external rotation osteotomy adjuster for knee joint replacement surgery, and relates to the technical field of external rotation osteotomy adjustment. The external rotation osteotomy adjuster for the knee joint replacement surgery comprises two positioning mechanisms, the two positioning mechanisms are arranged up and down, each positioning mechanism comprises a positioning main ring, the positioning main ring is in a circular ring shape with a notch in the front end, a first groove is formed in the positioning main ring and penetrates through the positioning main ring from the front end, and a second groove is formed in the positioning main ring. Second grooves are formed in the outer side walls of the front ends of the left side and the right side of the first groove, the second grooves are in a parallelogram shape, the second grooves in the left side and the right side are symmetrically formed, a first shaft is fixedly connected to the middle of each second groove, and a first plate is connected to the outer side of each first shaft in a sleeving mode and rotationally connected with the first shaft through a spring shaft; according to the external rotation osteotomy adjuster for the knee joint replacement surgery, medical staff can more accurately know and adjust the position of a knee joint prosthesis, and the accuracy and efficiency of the surgery are greatly improved.

Description

technical field [0001] The invention relates to the technical field of external rotation osteotomy adjustment, in particular to an external rotation osteotomy adjuster for knee replacement surgery. Background technique [0002] The knee joint is an important weight-bearing joint of the lower limbs, and its structure and function are the most complex among the human joints. Degenerative osteoarthritis of the knee is a common disease in the elderly. It is reported that the incidence of symptomatic knee osteoarthritis is 35% in men over the age of 50 and as high as 74% in women. More and more patients with severe knee osteoarthritis require artificial knee replacement. Knee arthroplasty can relieve knee pain, improve knee function, correct knee deformity and achieve long-term stability. Artificial knee replacement is the use of artificial joint prosthesis to replace the damaged joint in order to restore and improve joint function and improve the quality of life. Due to the s...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the external rotation osteotomy adjusters on the market are generally used in the process of osteotomy for patients, but the adjusters are rarely used to position the patient's knee prosthesis during knee replacement surgery, and the During knee replacement surgery, the medical staff will generally perform preliminary positioning according to the patient's own knee bone, and will perform the same replacement of the knee prosthesis in the later stage. However, there are some patients with knee dislocation problems before surgery. Direct replacement of the prosthesis may cause the knee joint to continue to be dislocated. In order to ensure that the replaced knee joint can be placed in the correct position, there is an urgent need for an external rotation osteotomy adjuster for knee joint replacement surgery. To assist the anterior positioning operation of the knee prosthesis in knee replacement surgery to solve the above-mentioned problems

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