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What Is Reconstructive Knee Surgery?

Dan Cavallari
By
Updated Mar 03, 2024
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The knee is made up of several types of tissues and bones that must all function properly to keep the joint healthy. One of the most important collection of tissues is the anterior cruciate ligament (ACL), which is located in the center of the knee. This ligament helps hold the bones of the knee together, and it can become severely damaged if it is twisted beyond its means. Reconstructive knee surgery may be necessary to repair the ligament and to restore normal movement to the knee. The ACL can sometimes heal without surgery, so this process is usually reserved for the most severe injuries.

Three types of reconstructive knee surgery exist: open surgery, arthroscopy, and a combination of both. The most severe ACL injuries will require open surgery, in which an incision is made in the skin, allowing the surgeon to directly access the torn tissues in need of replacement or repair. An arthroscopic surgery is far less invasive, and most ACL injuries can be treated with this type of reconstructive knee surgery. A small incision is made near the knee, and a drill is used to cut through the bone so the surgeon can access the ACL. Sometimes a combination of both types of surgery are necessary to completely repair the knee.

When an arthroscopic reconstructive knee surgery is done, a new ACL is inserted through the incision and secured in place by the surgeon. This new ACL may be human tissue, or it may be artificial tissue; in either case, the surgeon will need to remove the damaged ACL fibers and replace it with the new fibers. These new fibers will be secured to the bones, and the knee will need to be immobilized for an extended period of time to promote healing. This healing process can take a long time, since blood flow to the injury can be limited.

An open surgery may also be necessary to repair other damage to the knee. A torn meniscus, for example, or a dislocated kneecap, may need to be addressed surgically before the ACL tear can be addressed. If this is the case, an open surgery may be performed before the arthroscopic surgery to address the torn ACL. The recovery time for this type of reconstructive knee surgery can be very protracted, and the knee will need to be immobilized for an extended period of time to allow healing without risking re-injury.

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Dan Cavallari
By Dan Cavallari
Dan Cavallari, a talented writer, editor, and project manager, crafts high-quality, engaging, and informative content for various outlets and brands. With a degree in English and certifications in project management, he brings his passion for storytelling and project management expertise to his work, launching and growing successful media projects. His ability to understand and communicate complex topics effectively makes him a valuable asset to any content creation team.
Discussion Comments
By turquoise — On Jan 31, 2013

I've heard that when it comes to reconstruction of the knee there are two options. They either use tissues from a dead person (called cadaver graft) or tissues from the person with the injury, such as from the tendons. Is one better than the other?

By fify — On Jan 31, 2013

@SarahGen-- That must have been a very minor injury because like you said, there is no way someone with a major injury can be back on their feet so soon, even if it's a an arthroscopy.

I had an arthroscopy too, to fix a tear in my ACL. It took me three months to be able to bend my knee again. It's not possible to move the knee much for the first month because a cuff has to be worn. I got my movement back months later with physical therapy.

Reconstructive knee surgery recovery takes a while even if it's non-invasive. Recovery from open surgery will take even longer.

By SarahGen — On Jan 30, 2013

My colleague had reconstructive knee surgery last month. He's back at work but he can't stand or walk for too long. He needs to be sitting down most of the day. Otherwise, he has pain.

I'm guessing he must have had arthroscopy right? He couldn't have been back on his feet in such a short time had it been open knee surgery.

Dan Cavallari
Dan Cavallari
Dan Cavallari, a talented writer, editor, and project manager, crafts high-quality, engaging, and informative content for various outlets and brands. With a degree in English and certifications in project management, he brings his passion for storytelling and project management expertise to his work, launching and growing successful media projects. His ability to understand and communicate complex topics effectively makes him a valuable asset to any content creation team.
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