Robotic knee replacement

Robotic-assisted knee replacement is a surgical approach in which a robotic system supports the surgeon during selected stages of knee replacement. Depending on the system used, it may assist with surgical planning, anatomical assessment, and guidance during bone preparation and implant positioning.

The procedure involves replacing damaged joint surfaces with artificial components. Robotic assistance does not mean that a robot performs the operation independently. Clinical decisions and surgical actions remain under the surgeon's control.

The technology and planning methods vary between systems. The expected benefits and limitations should be discussed with the treating surgeon before deciding on surgery.

Robotic-assisted knee replacement may be considered for selected patients with significant knee joint damage, including damage associated with osteoarthritis.

An orthopaedic assessment may be appropriate for people experiencing:

• Persistent knee pain that affects daily activities.
• Stiffness or reduced range of movement.
• Difficulty walking or climbing stairs.
• Limited improvement with appropriate non-surgical treatments.

These symptoms do not automatically mean that surgery is required. The surgeon considers the patient's medical history, physical examination, imaging findings, overall health, and treatment preferences before recommending a procedure.

The process generally includes the following stages:

1. Pre-operative assessment: The doctor evaluates knee symptoms, joint movement, medical history, and imaging findings. Additional investigations may be recommended when clinically appropriate.
2. Surgical planning: Depending on the robotic system, the surgeon uses imaging or other anatomical information to plan aspects of the procedure.
3. Robotic assistance during surgery: The system provides guidance for selected surgical steps. The surgeon performs and supervises the operation throughout.
4. Implant placement: The damaged joint surfaces are prepared, and the selected artificial components are positioned according to the surgical plan.
5. Post-operative care: The patient receives a recovery plan that may include pain management, assisted mobilisation, physiotherapy, and follow-up appointments.

The exact process varies according to the patient's condition and the robotic system used.

Robotic assistance can support surgical planning and provide guidance during selected stages of knee replacement. Depending on the technology and clinical circumstances, it may help the surgeon assess alignment and implant positioning.

However, robotic assistance does not guarantee a particular surgical outcome, faster recovery, less pain, fewer complications, or a longer-lasting implant. Results vary according to individual health factors, joint condition, surgical considerations, and rehabilitation.

Conventional knee replacement remains an appropriate option for many patients. The choice between robotic-assisted and conventional surgery should be based on clinical suitability, available technology, the surgeon's assessment, and informed patient preference.

• Total knee replacement: Damaged joint surfaces across the main parts of the knee are replaced with artificial components.
• Partial knee replacement: Only the affected compartment is replaced when the extent and location of joint damage make this option appropriate.

Whether robotic assistance can be used for a particular procedure depends on the patient's condition, the surgical plan, and the available system.

Robotic-assisted knee replacement is a major surgical procedure and carries risks associated with knee replacement surgery. These may include infection, bleeding, blood clots, stiffness, persistent pain, nerve or blood vessel injury, implant wear or loosening, and the possible need for further surgery.

Depending on the robotic system, additional considerations related to equipment or tracking components may also apply. The surgeon should explain the relevant risks, expected benefits, limitations, and alternative treatments before obtaining informed consent.

Recovery differs between patients. Factors include general health, muscle strength, the type of procedure, pain management, and progress during rehabilitation.

The recovery plan may involve assisted walking, prescribed exercises, physiotherapy, wound care, and follow-up assessments. The treating team will advise when activities can be resumed and how to progress safely.

No specific recovery timeline or functional outcome can be guaranteed. Patients should follow their treating team's instructions and report concerns during recovery.

MAHI Hospitals is located in Kilpauk, Chennai, and provides orthopaedic consultations for patients with knee pain, arthritis, and mobility concerns. Patients can discuss their symptoms, diagnostic findings, and available surgical and non-surgical options with an orthopaedic specialist.

A consultation can help determine whether knee replacement is appropriate and whether robotic assistance is a suitable option in an individual case. Treatment decisions should be based on clinical evaluation, an explanation of the available alternatives, and informed discussion between the patient and treating doctor.