Our Summary

This study looked at the results of a new type of knee implant that was custom-made for each patient using 3D printing technology. From 2012 to 2015, 92 people had this new type of knee surgery. The results were very promising - after an average of 4.5 years, 97% of patients did not need any additional operations. However, more research is needed to see how these custom-made knee implants hold up in the long term.

FAQs

  1. What is the new type of knee implant mentioned in the study?
  2. How successful was the new type of knee surgery based on the study?
  3. Is more research needed on the long-term durability of these custom-made knee implants?

Doctor’s Tip

One helpful tip a doctor might tell a patient about knee replacement is to follow a proper post-operative rehabilitation program to ensure a successful recovery. This may include physical therapy, exercises to strengthen the muscles around the knee, and following any weight-bearing restrictions as recommended by the surgeon. It is important to follow these guidelines to improve mobility, reduce pain, and prevent complications.

Suitable For

Patients who are typically recommended for knee replacement surgery include those with severe knee pain that limits daily activities, chronic knee inflammation and swelling that does not improve with medication or other treatments, knee deformities, and knee stiffness that limits the ability to bend or straighten the knee. Other factors that may make a patient a candidate for knee replacement include failed previous knee surgeries, severe arthritis or joint damage, and a lack of improvement with non-surgical treatments such as physical therapy or medication. Ultimately, the decision to undergo knee replacement surgery is made on a case-by-case basis in consultation with a healthcare provider.

Timeline

Before knee replacement:

  1. Patient experiences chronic knee pain, swelling, stiffness, and limited mobility.
  2. Patient consults with an orthopedic surgeon who recommends knee replacement surgery.
  3. Patient undergoes pre-operative evaluations such as imaging tests, blood tests, and consultations with other healthcare professionals.
  4. Patient may undergo physical therapy to strengthen muscles around the knee before surgery.

After knee replacement:

  1. Patient undergoes knee replacement surgery, which involves removing damaged cartilage and bone from the knee joint and replacing it with an artificial implant.
  2. Patient stays in the hospital for a few days for monitoring and rehabilitation.
  3. Patient begins physical therapy to regain strength, mobility, and range of motion in the knee.
  4. Patient continues with regular follow-up appointments with the surgeon to monitor healing and progress.
  5. Over time, patient experiences reduced pain, improved mobility, and better quality of life as the knee heals and strengthens.

What to Ask Your Doctor

  1. Is knee replacement surgery the best option for me at this time?

  2. What are the potential risks and complications associated with knee replacement surgery?

  3. How long is the recovery process and what can I expect in terms of pain management and rehabilitation?

  4. What is the success rate of knee replacement surgery with traditional implants compared to custom-made implants using 3D printing technology?

  5. How long do custom-made knee implants typically last compared to traditional implants?

  6. Are there any specific criteria that I need to meet in order to be a candidate for custom-made knee implants?

  7. What is the cost difference between traditional knee replacement surgery and custom-made knee implants using 3D printing technology?

  8. How often will I need follow-up appointments after the surgery and what should I expect in terms of long-term monitoring of the implant?

  9. Are there any lifestyle changes or restrictions I should be aware of after receiving a custom-made knee implant?

  10. Are there any ongoing research studies or clinical trials related to custom-made knee implants that I should consider participating in?

Reference

Authors: Mestriner AB, Antonelli B, Schwab PE, Chen AF, Jones T, Ackermann J, Merkely GB, Lange JK. Journal: Orthop Clin North Am. 2023 Apr;54(2):193-199. doi: 10.1016/j.ocl.2022.12.001. Epub 2023 Jan 31. PMID: 36894291