Lifting ratio template props and measuring methods for orthopedic surgery fracture operation

Abstract

The invention relates to the field of orthopedic surgery medical instruments, in particular to a lifting ratio template device and a measuring method for orthopedic fractures of human long tubular bones. Its characteristics are: one end of the bolt is dynamically connected with the hemisphere through the thread, and the other end is fixedly connected with the base to form a proportional template; Take X-rays on the flat bed in a horizontal state, the operator touches the highest point of the greater trochanter with his hands, measures the hemisphere with a level ruler, raises the hemisphere to the same height as the greater trochanter, and takes pictures; the present invention The positive effect is that: the diameter in the X-ray film is measured to an accuracy of 1 mm; the diameter of the medullary cavity of the bone in the X-ray film that needs to be treated is calculated to an accuracy of 1 mm. The success rate of the operation guided by the data obtained is 100%. 1. The operation time of proximal femoral anti-rotation intramedullary nailing is 15 minutes-30 minutes; 2. The operation time of femoral shaft fracture intramedullary nailing is ≤1 hour; 3. The operation time of tibial intramedullary nailing is ≤1 hour; 4. Plate operation time ≤ 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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