Artificial total hip joint prosthesis with axial restraint and anti-dislocation structure

Abstract

The invention provides an artificial whole hip joint prosthesis having an axial limiting and anti-dislocation structure. The artificial whole hip joint prosthesis comprises an acetabular prosthesis, an inner liner and a caput femoris prosthesis. The inner liner is arranged in a groove of the acetabular prosthesis, and the caput femoris prosthesis is arranged in a groove of the inner liner. The artificial whole hip joint prosthesis further comprises an axial limiting and anti-dislocation structure, the axial limiting and anti-dislocation structure penetrates the central portions of the acetabular prosthesis, the inner liner and the caput femoris prosthesis to connecting the acetabular prosthesis, the inner liner and the caput femoris prosthesis together to form a whole body, and the length and the elasticity of the whole body can be adjusted. The artificial whole hip joint prosthesis having the axial limiting and anti-dislocation structure can prevent the caput femoris prosthesis from coming out of the acetabular prosthesis through an axial drawing effect, complication, generated after total hip replacement arthroplasty, of dislocation of a hip joint can be reduced even eliminated, the activity of a postoperative hip joint can be improved, and limit on postoperative patient's daily movement is less. The artificial whole hip joint prosthesis having the axial limiting and anti-dislocation structure is simple in structure designe, convenient to operate and easy to dismount, and the artificial whole hip joint prosthesis can be conveniently taken out when the artificial whole hip joint prosthesis loosens or is overhauled.

Description

technical field [0001] The invention belongs to the technical field of medical appliances, and in particular relates to an artificial total hip joint prosthesis with an axially limited and adjustable anti-dislocation structure. Background technique [0002] Total hip replacement is currently one of the most effective means of treating hip joint diseases in the world, and its therapeutic effect has been unanimously recognized by doctors and patients all over the world. However, the main complications that affect the effect after surgery are joint dislocation and reduced range of motion, which reduces satisfaction to a certain extent, prolongs the rehabilitation period, and increases the risk of surgery. Correspondingly increased. At present, the only way to improve the device to reduce the risk of dislocation is the high-side design of the polyethylene lining, but the impact on the dislocation rate is limited, and the complication of dislocation is still about 3%, and for pa...

AI Technical Summary

Problems solved by technology

However, the main complications that affect the effect after surgery are joint dislocation and reduced range of motion, which reduces satisfaction to a certain extent, prolongs the rehabilitation period, and increases the risk of surgery. Corresponding increase

At present, the only way to improve the device to reduce the risk of dislocation is the high-side design of the polyethylene lining, but the impact on the dislocation rate is limited, and the complication of dislocation is still about 3%, and for patients with dislocation tendency, and Patients who have experienced dislocations in particular need a total hip prosthesis that limits the occurrence of dislocations

Images