Universal bone cutting guider for congenital acetabulum maldevelopment femur

Abstract

The invention discloses a universal bone cutting guider for a congenital acetabulum maldevelopment femur. The guider comprises a front clamping jaw, a back clamping jaw and a locating shaft, and the locating shaft penetrates through fixed holes of the front and back clamping jaws and is perpendicularly connected between the two fixed holes; the front clamping jaw and the back clamping jaw are arranged in parallel, the inner sides of the front and back clamping jaws are provided with bone cutting guide blocks, and the bone cutting guide blocks are provided with bone cutting grooves. According to the universal bone cutting guider for the congenital acetabulum maldevelopment femur, the structure is reasonable, the bone cutting guider is utilized to carry out fixing clamping, locating auxiliary, bone cutting measurement and bone cutting auxiliary on congenital dislocation of hip joint osteotomy, the front and back bone cutting surfaces parallelism and flatness are ensured, it is finally achieved that the bone cutting surfaces are perfectly meshed, the femur medullary cavities in a straight line are ensured after the osteotomy, the risk is reduced that a prosthesis penetrates out of a side face of the femur medullary cavities when prosthesis implantation is carried out, and the achievement ratio of the congenital dislocation of hip joint osteotomy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a general-purpose femoral osteotomy guide for congenital acetabular dysplasia, which is used for positioning osteotomy in hip anterior correction surgery. Background technique [0002] Congenital Dislocation of Hipjoint (CDH), also known as developmental dislocation of the hip or developmental dysplasia of the hip (DDH) and hypoplasia. The femoral head loses its normal relationship with the acetabulum in the joint capsule, leading to complications such as joint mobility impairment, skin striae, changes in the perineum, limp gait, and shortened deformity of the affected limb. [0003] The symptoms can be treated with surgery, surgery can be used femoral rotation osteotomy and femoral shortening osteotomy. During the operation, the patient’s position must be fixed first, and the surgical treatment is usually performed by the posterior approach. The surgical osteotomy is us...

AI Technical Summary

Problems solved by technology

During the operation, the patient’s position must be fixed first, and the surgical treatment is usually performed by the posterior approach. The surgical osteotomy is usually adjusted through the doctor’s surgical experience and his own technique. Once the patient moves slightly during the operation, the front and rear osteotomy The flatness and levelness of the bone surface will be affected, resulting in the inability to pass through the medullary cavity at both ends of the prosthesis smoothly after the osteotomy plane is docked, and it is easy to pass through the distal side of the femoral medullary cavity during implantation, resulting in fracture and affecting success rate of surgery

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