Sacroiliac joint dislocation closed reduction and minimally invasive bionic rational internal fixation system

Abstract

The invention discloses a traumatic sacroiliac joint dislocation closed reduction and minimally invasive bionic rational internal fixation system (i.e., a surgical instrument) and a use method thereof. The system is divided into a reduction system, an aiming system and a fixation system, and has the characteristics that: 1, the internal fixation system is a three-dimensional bone traction sacroiliac joint closed reduction system under the assistance of a reduction outer frame at a prone position; 2, a sacrum rod type screw implantation aiming system in the system is a minimally invasive precise aiming system taking the screw tail of a long-tail universal pedicle screw as a joint point; and 3, a sacrum rod type screw in the system is combined with pedicle screws of the sacrum 1 and the sacrum 2 to fix the sacroiliac joint, the fixation mechanism is similar to a suspension bridge type physiological stability mechanism of the sacroiliac joint, and the internal fixation system is a bionic rational fixing system. According to the invention, early, safe, effective and minimally invasive surgical treatment can be provided for traumatic sacroiliac joint dislocation and partial sacrum fracture patients, and surgery can be carried out in primary hospitals. The internal fixation system plays an important role in improving the cure rate of pelvic fracture and reducing the disability rate and the death rate of pelvic fracture.

Description

[0001] 1. Technical field [0002] The invention relates to the technical field of medical devices, in particular to a surgical device for minimally invasive treatment of traumatic sacroiliac joint dislocation. [0003] 2. Background technology [0004] The treatment of traumatic sacroiliac joint dislocation has always been a difficult problem in trauma orthopedics. It is a subtype of the most serious Tile C pelvic fracture that requires surgical treatment. Due to the disappointing results of non-surgical treatment, most traumatic sacroiliac joint dislocations are now treated surgically. Posterior open reduction and displaced sacroiliac joint fractures or simple sacroiliac joint dislocations have been reported. The screw fixation of the sacroiliac joint has a good effect, and 2 / 3 of the patients can return to the work position before the injury. However, open reduction and internal fixation not only has problems such as large incision, large surgical trauma, high risk, diffic...

AI Technical Summary

Problems solved by technology

[0007] In order to make up for the above deficiencies, and to provide one more option for minimally invasive surgery for sacroiliac joint dislocation, we have devised a new method, which is simpler and less risky, and can be carried out in primary hospitals. Assisted sacroiliac joint dislocation closed reduction internal fixation system, we call it traumatic sacroiliac joint dislocation minimally invasive closed reduction, physiological imitation internal fixation system, no one at home and abroad has made such a minimally invasive design

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