How Long PT After Knee Replacement (And Why)?

How Long PT After Knee Replacement (And Why)?

Exact Answer: Three To Four Weeks

Knee replacement is also medically termed as knee arthroplasty, referred to as a surgical procedure carried out to replace one or all of the weight-bearing surfaces present on the patient’s knee joint. It helps relieve pain and disability. The surgery is most commonly performed for a medical condition known as osteoarthritis.

Psoriatic arthritis and rheumatoid arthritis are also two common medical conditions in which a knee replacement surgery can be performed. Sometimes, there is a need to replace the knee because it might have been damaged in a road accident or from falling off a high altitude. A damaged knee causes a lot of pain and is also responsible for internal bleeding.

How Long PT After Knee Replacement

How Long PT After Knee Replacement?

Knee replacement is a surgery which is needed to be carried out with a lot of precision and accuracy. The patient must be handled with immense care and sensibility. Negligence can also nullify the efforts put in while carrying out the surgery. Multiple reasons can lead to severe pain in the knees of the patient. One of the most common causes is meniscus tears in the knee. Ligament tears and cartilage defects also contribute significantly to causing pain to the patient. Older patients are more likely to get troubled because their bones become weak as they grow older.

The knee replacement surgery is either done partially in which some part of the knee is replaced. It is not considered practical to replace such parts in proper conditions and is good to work with. The other knee replacement surgery is known as complete knee surgery, in which the entire knee is to be replaced. It is a very tough surgery, and the surgeon must have prior knowledge of the surgery. This surgery is carried out on patients whose knees are completely damaged and cannot be used for fruitful work.

PT Knee Replacement
Type Of Physical TherapiesTime After Knee Replacement
Basic physical therapiesThree to four weeks
Intense physical therapiesSix to seven weeks

It is advised not to get indulged in any physical therapies immediately after a knee replacement surgery. Primary physical therapies can be resumed after three to four weeks. However, to perform intense physical therapies, the patient must wait six to seven weeks post-surgery.

Why Does It Take That Long To Resume PT After Knee Replacement?

In most knee replacement surgeries, plastic or metal components replace the damaged knee parts. These components are placed in such a way that they support the functioning of the knee. But whether a metal component or a plastic one is to be used is decided by the medical staff operating. The patient can start continued motion slowly after the surgery. The operation is harrowing, and the patient can feel a lot of pain on a surgical day for a few days after the surgery. Local anesthesia is given to the patient at the time of the surgery.

It takes that long after knee replacement to resume physical therapy sessions because the knee needs ample time to rest and recover. Putting additional pressure on the knees immediately after the surgery can be very painful and excruciating for the patient. Medical experts advise not to use the knees early and recommend putting the knees in a straight position for some days after the surgery. It is crucial to make a rehabilitation routine with the medical expert and follow it properly.

PT After Knee Replacement

After the surgery is completed, the patient is shifted to the restroom for healing and monitoring purposes. Most of the patients are asked to walk with the help of crutches as the knees are feeble just after the surgery. It is essential to contact the medical expert immediately if the patient feels any discomfort.


Overall, it can be concluded that knee replacement surgery which is also termed as knee arthroplasty, is a process of removal of damaged knee parts from the knee of a patient, and they are replaced by either metal or plastic components depending on the conditions of the patient.

On average, it takes three to four weeks for the patient to resume regular physical therapies. However, if the patient wants to start practicing intense physical therapies, six weeks must be given to the patient to recover and heal properly. Medical assistance should be sought in case of any emergency.


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21 thoughts on “How Long PT After Knee Replacement (And Why)?”

  1. Avatar of Robertson Elliot
    Robertson Elliot

    The details provided about the types of physical therapies and the timeline for resuming them are very helpful. It gives a clear picture of the recovery journey after knee replacement surgery.

    1. I agree, the article offers valuable insights into the recovery timeline and necessary physical therapies following knee replacement surgery.

  2. The post-surgery care details and the recovery timeline provided here are very informative and helpful for anyone considering knee replacement surgery.

    1. Absolutely, having a clear understanding of what to expect during the recovery period is essential for patients and their families.

  3. The information provided here is very helpful for people considering knee replacement surgery. I think it is important to understand the process and timeline for recovery.

    1. I agree, the article does a great job of explaining the process and recovery time. It’s a good resource for those who want to know what to expect from knee replacement surgery.

  4. It’s surprising that intense physical therapies can be resumed after six to seven weeks. I didn’t realize the recovery time was so long.

    1. Yes, the recovery process for knee replacement surgery can be quite lengthy. It’s important to follow the guidelines for rehabilitation to ensure proper healing.

  5. The in-depth explanation of why it takes a certain amount of time to resume physical therapies after knee replacement surgery is enlightening. It’s important to understand the rationale behind the recovery process.

    1. I agree, knowing why the recovery timeline is set as it is can help patients approach their rehabilitation with the right mindset.

  6. This article provides a great overview of knee replacement surgery and the recovery process. It’s essential information for those considering the procedure.

    1. Absolutely, understanding the details of the surgery and recovery timeline is crucial for anyone preparing for knee replacement surgery.

  7. I appreciate the clear explanation of what a knee replacement surgery entails. It’s a complex procedure, and this article provides valuable information.

    1. Absolutely, having a thorough understanding of the surgery and recovery process is essential for patients and their families.

    2. Agreed, the article provides comprehensive details that can assist individuals in making informed decisions about knee replacement surgery.

  8. The explanation of the post-surgery care and rehabilitation routine is very informative. Patients need to be aware of what to expect during the recovery period.

    1. Absolutely, understanding the post-surgery care and recovery process is crucial for a successful outcome of knee replacement surgery.

  9. The article offers a comprehensive overview of knee replacement surgery and the recovery process. It’s a valuable resource for patients and their loved ones.

    1. Avatar of Benjamin Richards
      Benjamin Richards

      I agree, the detailed information provided in the article can assist individuals in preparing for knee replacement surgery and post-operative care.

  10. The details about why it takes so long to resume physical therapy after knee replacement surgery are enlightening. It’s important to understand the reasons behind the recovery timeline.

    1. Absolutely, having insight into the recovery process can help patients prepare mentally and physically for the challenges ahead.

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