Partial Knee Replacement in Chennai

Partial knee replacement, also known as unicompartmental knee replacement, is a surgical procedure that replaces the damaged surfaces of one compartment of the knee with artificial components. The remaining healthy parts of the knee are preserved where appropriate.

The knee has three main compartments:

• Medial compartment: The inner side of the knee.
• Lateral compartment: The outer side of the knee.
• Patellofemoral compartment: The area between the kneecap and the thighbone.

The type of procedure considered depends on where the joint damage is located. Partial knee replacement is not suitable for every person with knee arthritis. The condition of the other compartments, ligaments, alignment and overall health must also be evaluated.

An orthopaedic surgeon may discuss partial knee replacement when arthritis or cartilage damage is confined to one compartment and symptoms continue to affect everyday activities despite appropriate non-surgical treatment.

Symptoms that may prompt an assessment include:

• Persistent knee pain while walking or standing.
• Difficulty climbing or descending stairs.
• Stiffness that limits knee movement.
• Pain that interferes with routine activities.
• Limited improvement with suitable medication, physiotherapy or other recommended treatments.

These symptoms alone do not establish whether surgery is needed. An orthopaedic assessment, physical examination and appropriate imaging help determine the extent of joint damage and the available treatment options.

Suitability depends on the pattern and extent of arthritis, the condition of the remaining knee compartments, ligament function, knee alignment, medical history and activity needs.

Partial knee replacement may be considered when:

• Joint damage is mainly confined to one compartment.
• The remaining joint surfaces are sufficiently preserved.
• The knee ligaments provide appropriate stability.
• Symptoms significantly affect daily function.
• The potential benefits and risks are acceptable after clinical assessment.

If arthritis affects multiple compartments, or if other joint or ligament problems are present, total knee replacement or another treatment may be more appropriate. The decision should be individualised rather than based on age or symptoms alone.

The main difference is how much of the knee joint is replaced.

Partial knee replacement

• Replaces the affected compartment.
• Preserves healthy joint structures where possible.
• Requires careful assessment to confirm that the damage is sufficiently localised.

Total knee replacement

• Replaces the damaged joint surfaces across the knee more extensively.
• May be considered when arthritis affects multiple compartments.
• Has different surgical and rehabilitation considerations.

Partial knee replacement may allow a shorter recovery for appropriately selected patients, but this is not guaranteed. The choice depends on the patient's anatomy, arthritis pattern, health and treatment goals. Discuss the expected benefits, limitations and possibility of further surgery with the treating surgeon.

The exact surgical plan depends on the patient's condition and the procedure selected. It generally involves the following stages:

1. Preoperative assessment

The clinical team reviews symptoms, medical history, current medicines, previous treatments and imaging. Additional tests may be required to assess general health and suitability for surgery.

2. Anaesthesia and preparation

The anaesthesia team discusses suitable anaesthesia and pain-management options. The surgical team prepares the patient according to clinical protocols.

3. Replacement of the affected compartment

The surgeon removes the damaged joint surfaces in the affected compartment and positions artificial components. The remaining knee structures are preserved where appropriate.

4. Initial movement and rehabilitation

After surgery, the care team monitors recovery and helps the patient begin movement and walking when medically appropriate. A physiotherapist provides guidance based on the patient's progress.

Robotic-assisted or other surgical technologies may be available in some settings. Whether a particular technology is used depends on the procedure, available facilities and the surgeon's clinical assessment. Technology alone does not guarantee a particular outcome.

Partial knee replacement is a surgical procedure and carries potential risks. These may include:

• Infection.
• Blood clots.
• Bleeding or wound-healing problems.
• Stiffness or persistent pain.
• Nerve or blood vessel injury.
• Implant wear, loosening or other implant-related problems.
• Progression of arthritis in another part of the knee.
• The need for further surgery, including conversion to total knee replacement.

The likelihood of complications varies between individuals. The surgeon should explain the risks relevant to the patient's medical history and the proposed procedure, along with available alternatives and steps used to reduce risk.

Recovery varies according to general health, surgical progress, pain, mobility and rehabilitation. Some patients may regain everyday function sooner after partial than total knee replacement, but an individual recovery timeline cannot be guaranteed.

Rehabilitation may include:

• Walking with assistance when advised by the clinical team.
• Exercises to improve knee movement and muscle strength.
• Following wound-care and medication instructions.
• Gradually increasing activity as advised.
• Attending follow-up appointments to monitor recovery.

The treating team will advise when it is appropriate to return to work, drive, climb stairs and resume other activities. Contact the clinical team promptly if you develop fever, increasing wound redness or discharge, worsening pain or swelling. Sudden chest pain or breathing difficulty after surgery requires emergency medical attention.

To make the consultation more useful, bring:

• Previous knee X-rays, scans and medical reports.
• A list of current medicines and known allergies.
• Details of previous treatments, injections or physiotherapy.
• Information about existing medical conditions and previous surgeries.
• Questions about treatment alternatives, implant options, risks, recovery and follow-up.

Patients should also ask about the expected hospital stay, rehabilitation arrangements and estimated treatment costs. Costs may vary according to clinical needs, implant selection, hospital services and the care required.

• MAHI Hospitals is located at No. 118, Poonamallee High Road, Vepery, Chennai – 600084. Patients can contact the hospital to enquire about orthopaedic consultations and the availability of partial knee replacement services.Dr. Vijay Kumar Sohanlal is associated with orthopaedic and joint replacement care at MAHI Hospitals. His published professional profile lists MBBS and MS (Orthopaedics). Patients can discuss their symptoms, examination findings and treatment options with the clinical team.

  A consultation can help determine whether partial knee replacement, total knee replacement or a non-surgical approach may be appropriate. The decision should be based on clinical findings, potential risks, expected benefits and the patient's preferences.