Robotic Total Knee Replacement

Robotic total knee replacement is a modern, precise surgical option for individuals suffering from debilitating knee osteoarthritis or joint damage.

With advancements in surgical technology, including the ROSA® (Robotic Surgical Assistant) and MAKO® robotic systems, patients can now experience improved surgical accuracy, potentially quicker recovery, and long-term joint function. At Perth Orthopaedic & Sports Medicine, Dr Daniel Meyerkort is at the forefront of robotic orthopaedic surgery, offering both robotic and conventional knee replacement tailored to individual needs.

Understanding Robotic Knee Replacement

A robotic-assisted total knee replacement involves the use of advanced robotic systems to assist the surgeon in performing the procedure with increased precision. The surgery still relies on the expertise of the orthopaedic surgeon; the robot does not perform the surgery independently but enhances the surgeon’s accuracy in bone preparation and implant positioning.

The MAKO Robotic System

The MAKO system uses preoperative CT scans to create a 3D model of the patient’s knee. This model is used to plan the surgery in advance, customising implant placement to the patient’s anatomy. During the surgery, the MAKO robot helps guide the surgeon’s instruments with haptic feedback, improving precision and preserving soft tissue.

The ROSA Robotic System

ROSA (Robotic Surgical Assistant), developed by Zimmer Biomet, relies on real-time intraoperative data rather than a preoperative CT scan. ROSA uses sensors and imaging to continuously monitor limb alignment and knee movement throughout the procedure, allowing the surgeon to make dynamic adjustments during surgery for optimal implant placement.

Who Needs Total Knee Replacement?

Robotic knee replacement is most commonly performed on patients with:

  • End-stage osteoarthritis unresponsive to conservative treatment

  • Severe knee deformities or stiffness

  • Pain limiting daily activities and reducing quality of life

Before considering surgery, Dr Meyerkort evaluates each patient comprehensively, exploring non-surgical management options as a first-line approach.

Non-Surgical Management Before Considering Surgery

Not all patients need immediate surgery. Dr Daniel Meyerkort offers a variety of non-surgical treatments to help manage knee arthritis symptoms, including:

1. Physiotherapy

Strengthening surrounding muscles, improving joint flexibility, and correcting biomechanical issues can delay the need for surgery.

2. Medications

Anti-inflammatories and analgesics can help manage pain and inflammation.

3. Weight Management

Losing excess weight reduces stress on the knee joint and may delay progression of arthritis.

4. Joint Injections

Corticosteroid injections or viscosupplementation (gel injections) can provide temporary relief from inflammation and pain.

5. Platelet-Rich Plasma (PRP) Therapy

PRP injections are gaining popularity as a biological therapy that promotes tissue repair and reduces inflammation.

 

If non-surgical methods fail to provide relief and quality of life is severely impacted, robotic-assisted knee replacement may be recommended.

Benefits of Robotic-Assisted Knee Replacement

Robotic technology offers several distinct advantages when compared to traditional methods:

1. Improved Accuracy

Robots like MAKO and ROSA allow for precise bone resection and implant alignment, which can reduce wear and improve implant longevity.

2. Personalised Surgery

With real-time intraoperative data or preoperative 3D modelling, surgery is tailored to each patient’s individual anatomy.

3. Soft Tissue Protection

The haptic feedback and control of robotic arms help in preserving surrounding soft tissues and ligaments.

4. Faster Recovery

Many patients report quicker return to function, improved early range of motion, and reduced hospital stays.

5. Reduced Complications

Precision reduces the risk of outliers in component alignment, which may decrease the chances of dislocation, loosening, or uneven wear.

Realistic Expectations After Robotic Knee Replacement

While robotic knee replacement is a major step forward in technology, it is essential for patients to have realistic expectations about recovery and outcomes.

1. Pain Relief

Most patients experience significant pain reduction after surgery. However, complete elimination of discomfort may take several months.

2. Recovery Timeline

  • Hospital stay: Often 1–3 days.

  • Physiotherapy: Begins immediately after surgery and continues for at least 3 months.

  • Walking unaided: Typically within 4–6 weeks.

  • Driving: Usually possible around 6 weeks post-surgery.

  • Return to work: Office-based work can resume in 4–6 weeks; manual labour may take up to 3 months.

3. Activity Modification

High-impact activities such as running or jumping are discouraged. However, low-impact sports like swimming, golf, and cycling are encouraged to maintain fitness and knee health.

4. Implant Longevity

With proper care, robotic knee implants can last 15–20 years or more. Younger, more active patients may require revision surgery later in life.

5. Not a “Natural Knee”

Even with robotic precision, an artificial joint will not feel exactly like your natural knee. Some patients report a slight feeling of stiffness or mechanical sensation, especially during certain movements.

Risks & Potential Complications

Like all surgical procedures, robotic knee replacement carries potential risks:

  • Infection: Reduced with sterile techniques and antibiotics.

  • Blood Clots: Prevented with early mobilisation and blood thinners.

  • Implant Loosening or Failure: Less common with accurate alignment.

  • Nerve Damage: Rare but possible.

  • Residual Pain or Stiffness: Can occur, especially without adherence to physiotherapy.

Dr Meyerkort thoroughly discusses all risks and benefits with patients before surgery to ensure they make an informed decision.

Why Choose Dr Daniel Meyerkort in Perth?

Dr Daniel Meyerkort is a fellowship-trained orthopaedic surgeon with expertise in robotic joint replacement surgery. Based at Perth Orthopaedic & Sports Medicine, he offers patients the choice of ROSA or MAKO robotic systems, depending on their specific condition and goals.

His approach is personalised, starting with conservative management and progressing to advanced surgical techniques only when necessary. With a strong focus on evidence-based practice, minimally invasive techniques, and cutting-edge technology, Dr Meyerkort provides comprehensive care for patients seeking relief from knee arthritis.

Personalised Orthopaedic Care in Perth

If you are suffering from chronic knee pain and wondering if robotic total knee replacement is right for you, contact Perth Orthopaedic & Sports Medicine to schedule a consultation with Dr Daniel Meyerkort. Whether you're located in Perth or a regional area, Telehealth consultations are also available to make expert orthopaedic advice accessible.