Bone connecting device for treating femoral neck fracture

Abstract

The invention discloses a bone connecting device for treating femoral neck fracture. The bone connecting device comprises a bone connecting plate, wherein the bone connecting plate comprises a bone connecting plate upper part and a bone connecting plate lower part which are connected in sequence; the bone connecting plate upper part is outwards and obliquely arranged at the upper end of the bone connecting plate lower part, and the middle of the bone connecting plate is thicker than the two ends of the bone connecting plate; the bone connecting plate upper part is provided with three sleeves arranged in an invertedly triangular manner, and hollow screws are arranged in the sleeves; threads are formed in the front ends of the hollow screws, and no threads are formed in the rear parts of the hollow screws; during use, the hollow screws are obliquely arranged in the femoral head through the femoral neck from the greater trochanter; the threads are fixed in the femoral head, the rear parts of the hollow screws are connected with the femoral neck and the sleeves in a sliding manner, and locking screw holes locked with fixing screws in a thread manner are formed in the bone connecting plate lower part. Therefore, the fracture part can be pressurized in a femoral neck healing process, the fracture line is reduced, the blood supply rebuilding of the femoral neck fracture end becomes possible, the angular stability is relatively good, the fracture displacement can be prevented, and the occurrence rate of femoral head necrosis is reduced.

Description

Technical field [0001] The present invention involves a improvement of a bone device for the treatment of femoral neck fractures. Especially a kind of pressurization to the fracture of the fracture at the fracture line during the healing of the femoral neck.Good angle stability can prevent fractures from displacement and promote fracture device for the treatment of femoral neck fractures. Background technique [0002] Fracture of femoral neck is a more common clinical fracture. Most of them occur in the elderly. With the economic and social development of society, the proportion of young people with femoral neck fractures is getting higher and higher.The treatment of artificial femur head replacement is used. For young patients, the treatment of femoral heads is used. With the extension of human life, many elderly people have good physical fitness and large amount of activity.There are many treatment methods for the treatment of femoral heads to treat femoral neck fractures. Clos...

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Problems solved by technology

[0004] However, shortening of the femoral neck may occur after the hollow nails are withdrawn. For some patients with poor bone quality, if the weight bearing is premature or improper, due to the poor angular stability of the three hollow nails, fracture displacement will occur and cause nonunion of the femoral neck Even for femoral head necrosis, artificial joint replacement is the only choice. It is acceptable for the elderly to perform joint replacement in addition to suffering pain and high medical expenses, but for young patients, due to the large trauma and high cost of joint replacement, patients It is not advisable to perform joint replacement prematurely due to the large amount of activity and the longevity of the joints.

[0005] For this reason, someone has designed a locking bone fixation device for internal fixation to treat femoral neck fractures; the bone fixation device consists of a bone plate, three hollow nails and a locking nail. The pin-shaped screw hole has a threaded screw hole at the lower end. In actual operation, after the fracture of the femoral neck is reduced, the tails of three hollow nails are threaded into the plate thread, and a locking screw is fixed through the locking hole on the plate. On the femoral shaft, this forms a locking osteosynthetic device, which has good stability. During the healing process of the femoral neck, it can avoid shortening of the femoral neck and also has good angular stability to prevent fracture displacement; however, due to the hollow The nail and the bone plate are locked by threads, and the nail plate locks the nail plate system to the femoral shaft through the locking of the lower end. This design prevents the fracture from being pressurized and the fracture line cannot be reduced during the femoral neck healing process, which greatly increases the femoral neck. Even and the incidence of femoral head necrosis, with fatal defects

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