Lifting proportion template prop for bone surgery fracture operation and measuring method

Abstract

The invention relates to the field of bone surgery medical instruments, in particular to a lifting proportion template device for bone surgery fracture operation of human body long tubular bones and ameasuring method. The proportion template device is characterized in that one end of a bolt is dynamically connected with a hemisphere through threads, and the other end is fixedly connected with a base to form a proportional template; the hemisphere can lift up and down through threads; a proximal femur anti-rotation intramedullary nail operation is carried out, a patient lies flat on a flat bed, a proportional template is placed on the flat bed to be in a horizontal state, an X-ray film is shot, an operator touches the highest point of the greater trochanter with the hand, the hemisphere ismeasured with a horizontal ruler, the hemisphere is lifted to the position at the same height as the greater trochanter, and photographing is carried out; the device has the positive effects that thediameter in the X-ray film is measured to be 1mm accurately; and the medullary cavity diameter of the bone of a treatment part required by an affected limb in the X-ray film is calculated to be 1mm accurately. The success rate of the obtained data guidance surgery is 100%. The device comprises the conditions that 1, the operation time of the proximal femur anti-rotation intramedullary needle is 15-30 minutes; 2, the femoral shaft fracture intramedullary needle operation time is less than or equal to 1 hour; 3, the tibia intramedullary needle operation time is less than or equal to 1 hour; and4, tibia steel plate operation time is less than or equal to 1 hour.

Description

technical field [0001] The invention relates to a prop for orthopedic surgery in X-ray photography, in particular to a lifting ratio template prop and a measuring method for orthopedic surgery of human long tubular bones. Background technique [0002] For patients with long tubular bone fractures, doctors are pursuing accurate preoperative calculation and precise positioning of fracture surgery, short time, less bleeding, low postoperative infection rate, and fast wound healing. For patients, it is to reduce pain, recover soon, and spend less money on treatment. Including intramedullary fixation (intramedullary nail system) and extramedullary fixation (plate) surgery, but the latter has the disadvantages of more exposure, larger wounds, longer time, and more bleeding. [0003] The commonly used surgical methods for human long tubular bone fractures are: 1. Proximal femoral anti-rotation intramedullary nailing surgery, 2. Intramedullary nailing surgery for femoral shaft frac...

AI Technical Summary

Problems solved by technology

As a result, the following disadvantages arise: 1. The proportions in the X-ray film are different from the actual proportions, which causes misjudgment to the doctor before the operation; 2. The diameter of the smallest medullary needle of the femur is 9.5mm. The optical film is not accurate, the intramedullary cavity is too thin, and the intraoperative operation will lead to iatrogenic fracture of the medullary cavity, causing secondary trauma to the patient; 3. To penetrate the intramedullary nail, it must be at the apex of the greater trochanter or the pyriform sinus Dig out a hole larger than 9.5mm for intramedullary nailing. If the patient’s medullary cavity is <9.5mm, intramedullary nailing cannot be performed. The success rate is ≤96%, and then fixed with a plate

Caused patients to have secondary trauma, increased intraoperative bleeding, long exposure time, increased infection risk, and the infection rate would increase from 0.5% to 2% infection rate; 4. The operation time increased to 2 hours

If multiple internal fixation objects are sterilized at the same time, it will take up a lot of surgical equipment resources, increase the cost and reduce the efficiency

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