Reduction system for fracture and rotation deformity of lower limb bone

A technology of rotational deformity and broken bones, applied in the direction of radiological diagnostic equipment, diagnosis, application, etc., can solve problems such as incomplete reduction, obstruction of limb activities, failure to reflect the rotational deformity of fractured ends, etc., to improve accuracy, good recovery effect

Active Publication Date: 2021-11-02
THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This reset method has the following deficiencies: 1) Factors such as the shooting angle, shooting distance, and placement of the patient's limbs cannot be standardized for X-ray images, and there are errors in the evaluation results, and the reset effect is not ideal; Subjective and objective errors; 3) X-ray frontal and lateral films cannot reflect the rotational deformity of the fractured end around the axis, and the operation needs to be performed with the experience of a doctor, otherwise the reduction is incomplete and limb movement will be blocked after recovery

Method used

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  • Reduction system for fracture and rotation deformity of lower limb bone
  • Reduction system for fracture and rotation deformity of lower limb bone
  • Reduction system for fracture and rotation deformity of lower limb bone

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Experimental program
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Effect test

Embodiment 1

[0083] like Figure 1~5 As shown, a lower extremity fracture reduction system can be used for initial length reduction of limbs and reduction of lateral deformities. The operation method includes preoperative evaluation, intraoperative reduction, and re-evaluation and correction after reduction.

[0084] The patient lies on his back, and the anteroposterior film of the surgical segment under C-arm machine fluoroscopy, and the anteroposterior film of the healthy side symmetrical to the surgical segment are transmitted to the computer operation interface, and the four directions of front, back, inside and outside are defined .

[0085] Preoperative assessment of fractured bone length displacement

[0086] (1.1) According to the established element A, the computer evaluates whether there is a displacement in the length direction of the two broken bones on the anterior view of the surgical segment.

[0087] Methods for assessing the presence of lengthwise displacement of two fra...

Embodiment 2

[0110] Anteroposterior deformities may also exist after limb fractures, so this fracture reduction system also includes assessment and correction of anterior and posterior deformities of broken bones. The method also includes pre-operative evaluation, intra-operative reduction and re-evaluation and correction after reduction.

[0111] The preoperative evaluation includes the assessment of the anteroposterior deformity of the broken bone, specifically including the assessment of the anteroposterior angulation deformity and the anteroposterior displacement. The operation steps include:

[0112] The patient lies on his back, and the C-arm machine fluoroscopy lateral view of the surgical segment and the lateral view of the uninjured side symmetrical to the surgical segment are transmitted to the computer operation interface to define the four directions of front, back, inside and outside ;

[0113] (3) Evaluation of deformity before and after fracture

[0114] (3.1) Establish a ...

Embodiment 3

[0132] There may be rotational deformity after limb fracture, so the fracture reduction system also includes the assessment and correction of the rotational deformity of the broken bone, which is used for the reduction of the rotational deformity of the fractured bone of the lower extremity. The method also includes pre-operative evaluation, intra-operative reduction and re-evaluation and correction after reduction.

[0133] The preoperative evaluation includes an assessment of the rotational deformity of the fractured bone, and the procedure includes:

[0134] (4.1) The healthy side establishes a comparison benchmark, and according to the established element D, the computer obtains at least one reference value K5 that can evaluate whether the broken bone is rotationally deformed on the anteroposterior view of the healthy side;

[0135] (4.2) According to the established element D, the computer obtains the actual value K5' relative to the reference value K5 on the anterior vie...

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Abstract

The invention discloses a reduction system for fracture and rotation deformity of lower limb bones, which is characterized in that when the fracture deformity is assessed, a contrast standard is established by using an uninjured side image of a patient, the fracture deformity is assessed reversely, a unified reference standard is not set, the uninjured side of the patient is used as the reference standard, different situations are treated based on different conditions of different persons, and the condition of each patient is more compounded; the system is not influenced by factors such as the shooting angle and the shooting distance of an X-ray image and the placement of limbs of a patient, and is calculated, analyzed and evaluated through a computer, so that the evaluation and resetting accuracy is further improved, and the postoperative limbs can be well recovered, and the limbs on the two sides are symmetrical.

Description

[0001] The original application number of this divisional application is: 202010159773.X, the application date is: March 10, 2020, and the title of the invention is: a lower limb fracture reduction system. technical field [0002] The invention relates to the technical field of fracture treatment, in particular to a reduction system for fracture and bone rotation deformity of lower limbs. Background technique [0003] Fracture is a common disease in orthopedic surgery. Before the permanent fixation of the fracture site, it is necessary to reset the fracture site, restore the length of the lower limbs, and correct the anterior and posterior angular deformities, lateral angular deformities, and rotational deformities. [0004] The traditional method of reduction of long bone fractures is to perform open reduction with experience and skills under direct vision. However, open reduction is easy to damage the blood supply and soft tissue around the fracture, which takes a long time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/88A61B34/10A61B6/00
CPCA61B17/8866A61B34/10A61B6/505A61B2034/105
Inventor 张瑞鹏陈伟张英泽侯志勇张奇
Owner THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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