Our Summary

This research paper discusses the evolution and benefits of using computer-assisted surgery for knee replacements. Since the early 1970s, the design and tools used for knee replacements have significantly improved. It was found that for a knee replacement to last longer, it was necessary to have tools that could accurately and consistently fit it. However, even with advanced surgical techniques, surgeons were only able to meet their pre-surgery goals in 75% of cases.

To try and improve this, computer-assisted surgery for knee replacements was developed in the early 1990s in Grenoble, France. By the early 2000s, various navigation systems were created, some using pre-surgery imaging, others using imaging during the surgery, and some not using any imaging at all. These systems use a tracker and markers attached to the bones and tools, and a computer to navigate the surgery.

Even though many studies have shown that computer navigation improves the success of knee replacements, it has not been adopted as widely as it should be for various reasons. The paper will discuss these reasons. If the newest navigation systems are as successful as the older ones, it could encourage more widespread use of this technology.

FAQs

  1. What is computer-assisted surgery for knee replacements and when was it developed?
  2. What are the different types of navigation systems used in computer-assisted knee replacement surgery?
  3. Despite its benefits, why hasn’t computer-assisted surgery for knee replacements been more widely adopted?

Doctor’s Tip

A helpful tip a doctor might tell a patient about knee replacement is to consider discussing the option of computer-assisted surgery with their surgeon. This technology has been shown to improve the accuracy and success of knee replacements, leading to better outcomes for patients. It is worth exploring this option to ensure the best possible result for your knee replacement surgery.

Suitable For

Patients who are typically recommended for knee replacement surgery are those who have severe knee pain and stiffness that limits their daily activities, have not found relief with other treatments such as medication or physical therapy, have significant joint damage due to arthritis or injury, and have difficulty walking or climbing stairs. Additionally, patients who are in good overall health and have realistic expectations about the outcome of the surgery are also good candidates for knee replacement.

Timeline

Before knee replacement surgery, a patient typically experiences chronic knee pain, stiffness, swelling, and difficulty performing daily activities such as walking, climbing stairs, or getting in and out of chairs. They may have tried conservative treatments such as physical therapy, medications, injections, and lifestyle modifications with little to no improvement in their symptoms.

After knee replacement surgery, the patient will go through a period of rehabilitation and recovery. They will start physical therapy to regain strength, flexibility, and range of motion in their new knee. Pain and swelling will gradually decrease, and they will be able to gradually increase their activity level. Over time, they will experience improved mobility, reduced pain, and a better quality of life. With proper care and maintenance, a knee replacement can last for 15-20 years or more, allowing the patient to enjoy a more active and pain-free lifestyle.

What to Ask Your Doctor

Some questions a patient should ask their doctor about knee replacement surgery and the use of computer-assisted surgery include:

  1. How does computer-assisted surgery differ from traditional knee replacement surgery?
  2. What are the potential benefits of using computer-assisted surgery for my knee replacement?
  3. Are there any risks or complications associated with computer-assisted surgery?
  4. How experienced are you in using computer navigation systems for knee replacements?
  5. What is the success rate of knee replacement surgeries using computer navigation compared to traditional methods?
  6. Will the use of computer navigation result in a more accurate placement of the knee implant?
  7. How long is the recovery time expected to be with computer-assisted surgery?
  8. Will I have access to my pre-surgery imaging to better understand the procedure?
  9. Are there any additional costs associated with using computer navigation for my knee replacement surgery?
  10. What alternative treatment options are available if I choose not to undergo computer-assisted knee replacement surgery?

Reference

Authors: Saragaglia D, Rubens-Duval B, Gaillot J, Lateur G, Pailhé R. Journal: Int Orthop. 2019 Mar;43(3):597-604. doi: 10.1007/s00264-018-3913-z. Epub 2018 Mar 27. PMID: 29589088