Method for testing the movement degree variation of the joints between bones

A joint movement and joint technology, applied in the field of biological and medical experiments, can solve the problems of lack of research methods and measurement methods, lack of

Inactive Publication Date: 2008-03-05
SHANGHAI PUTUO DISTRICT CENT HOSPITAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, most of the researches are usually only on the simple biomechanics of the normal foot, and the changes in the alignment of bones and joints caused by various operations are mostly determined by methods such as X-ray photography, but for The changes in the range of motion before and after the operation are also measured in general, and there is a lack of objective and effective research methods and measurement methods, especially in the basic research. After studying the data and materials in detail, there are still many unresolved issues, such as the specific range of motion and motion mode of the joints of the middle and rear feet un...

Method used

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  • Method for testing the movement degree variation of the joints between bones
  • Method for testing the movement degree variation of the joints between bones
  • Method for testing the movement degree variation of the joints between bones

Examples

Experimental program
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Embodiment 1

[0046] 1) Experimental specimens

[0047] 12 fresh experimental calf-foot specimens discarded from surgery were used, and stored in a deep-low temperature refrigerator at -70°C. All specimens were uniformly preserved from the tibial shaft osteotomy plane to the plantar level of 30cm. The appearance was normal, and there was no injury or contracture of muscles, ligaments and tendons. X-rays were taken to exclude bone and joint degeneration and metabolic Skeletal diseases such as diseases, tumors, deformities and bone abnormalities. Before the start of the experiment, the specimens were thawed at room temperature, and after pretreatment, the intact ligaments, tendons, and joint capsules were preserved.

[0048] 2) Fixation and loading of experimental specimens

[0049] The tibia of the specimen was fixed with a steel fixing frame, and the position of the fixed steel ring was adjusted through adjustable screw screws in 7 directions, so that the specimen was basically perpendicu...

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Abstract

The present invention belongs to the field of biological and medical laboratory technique, relates to interosseous articular kinesiology and mechanics change, in the concrete, it relates to a method for testing interosseous articular kinetic degree change, specially, it relates to a method for testing intertarsal joint activity. Said method is characterized by that it includes the following several main steps: utilizing calculation principle of rigid body kinematics in physical mechanics to define three-dimensional coordinate system of pedal kinetic system, using three-dimensional digital coordinate instrument to measure three-dimensional coordinate value, resolving nonlinear equation, making matrix conversion, calculating changed value of three-dimensional position relationship from one state to another state so as to obtain the pedal intertarsal joint activity.

Description

technical field [0001] The invention belongs to the technical field of biological and medical experiments. The invention relates to kinematics and mechanical changes of interosseous joints, and specifically relates to a method for testing the change of interosseous joint motion, especially a method for testing the motion of intertarsal joints. Background technique [0002] The subtalar joint, also known as the heel-talar joint, is a complex structure that plays an important role in the biomechanics of the midfoot and hindfoot. However, due to its relatively small range of motion relative to the foot, it has not attracted enough awareness for a long time. With the treatment of common diseases such as flat feet, posterior tibial tendon insufficiency, rheumatoid arthritis, degenerative arthritis, foot deformities, traumatic and post-traumatic arthritis, conservative treatment has turned to surgical treatment, and the most widely used one is Fusion has achieved corresponding c...

Claims

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Application Information

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IPC IPC(8): A61B5/11G06F19/00
Inventor 周军杰曹成福
Owner SHANGHAI PUTUO DISTRICT CENT HOSPITAL
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