Fixing suspension device for posterior cruciate ligament avulsion fracture reduction surgery and operation method

Abstract

The invention discloses a fixing suspension device for a posterior cruciate ligament avulsion fracture reduction surgery and an operation method. a) Knee joint cavity posterior mediastinal tissues and avulsion bone block surrounding fascia tissues need to be cleaned in the surgery to facilitate fracture exposure and reduction in the surgery; b) after avulsion bone block reduction, an ACL reconstruction dead point positioner needs to be used for holding, a 4.5 mm positioning rod needs to drill out from the middle part of a bone block, a PDS wire is introduced along the inside of the positioning rod, and the additional use of a wire feeding device is not needed; and c) during fixation, a wire ring is forcibly tensioned at a knee bending position of about 90 degrees and is extruded and fixed, so that the posterior cruciate ligament is in the most relaxed state, a fracture block and a bone bed can keep tight fit to maintain stable reduction of the bone block. The operation steps are few, the operation is simple and easy to implement, fracture reduction and fixation are firm and reliable, when the joint moves, the fracture end can slightly move, the BO principle of fracture healing is met, and fracture healing is facilitated, rehabilitation exercises can be performed as soon as possible to recover the joint function.

Description

technical field [0001] The invention relates to the field of orthopedic medical technology, in particular to a fixation and suspension device and an operation method for the reduction operation of posterior cruciate ligament avulsion fracture. Background technique [0002] Avulsion fracture of posterior cruciate ligament (PCL) tibial insertion is a special type of PCL injury, which leads to PCL failure and joint instability after fracture. Therefore, surgery is recommended for displaced fractures. The previous treatment was based on open reduction and internal fixation. Although the surgical effect was positive, but because the main nerves and blood vessels at the back of the knee were adjacent to the fracture site, the exposure of the fracture site was limited during the surgical incision, and there was a risk of damage to blood vessels and nerves during the operation. In the prior art of tibial insertion avulsion fracture, a variety of surgical treatment methods have achi...

AI Technical Summary

Problems solved by technology

With the existing open surgery, open reduction and cannulated screw internal fixation are more likely to be used for avulsion fractures with large fracture fragments. Although good results can be obtained, combined injuries in the joint cannot be treated at the same time, and the trauma is large and the recovery is slow.

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