Joint Arthroplasty: How the Surgery Works
Joint arthroplasty, or joint replacement, explained clearly. How the operation is done in Thane, the anaesthesia and implants used, and what happens on the day.
What Is Joint Arthroplasty?
Joint arthroplasty, commonly called joint replacement surgery, is an operation to relieve pain and restore movement in a badly damaged joint. It works well for people with advanced osteoarthritis, rheumatoid arthritis or an old injury, when treatments without surgery no longer give enough relief.
In joint arthroplasty, the damaged joint surfaces are replaced with artificial implants made from durable materials such as metal, medical-grade plastic or ceramic. The implants are designed to copy the way the natural joint moves.
The most common types are hip and knee replacements, but shoulder, elbow and ankle replacements are also done. Surgery is usually recommended for people with lasting pain, limited movement or a poorer quality of life because of joint damage. To find out which replacement suits which problem, read about joint replacement surgery.
The Operation, Step by Step
Preparation and Anaesthesia
The operation begins with anaesthesia, either general (you are asleep) or regional (the area is numbed). The choice depends on your health and the joint being replaced.
Opening the Joint
The surgeon makes a cut over the joint and carefully moves the surrounding muscles and tissues aside to reach it. Less invasive techniques may be used where suitable, which can reduce scarring.
Removing Damaged Bone and Cartilage
The worn cartilage and a thin layer of bone are removed to make space for the implant. In a knee replacement, for example, the damaged ends of the thighbone and shinbone, and sometimes the back of the kneecap, are reshaped.
Placing the Implant
The artificial parts are positioned precisely to copy the natural joint, and fixed with bone cement or by press-fitting, which allows the bone to grow into the implant over time.
Aligning and Testing
The surgeon checks the alignment and moves the new joint through its full range, to make sure it is smooth and stable. This step is critical for the joint to work well and wear slowly.
Closing the Wound
The cut is closed with stitches or clips and dressed to prevent infection. A small drain may be used for a short time.
Recovery and Rehab
You are watched closely in the recovery area, then begin a rehab programme. Physiotherapy starts early to restore movement, strengthen the muscles and return function step by step.
Anaesthesia Explained
Most hip and knee replacements are done under spinal anaesthesia, an injection in the lower back that numbs you from the waist down. You can be given medicine to make you drowsy or asleep during the operation. Shoulder replacements are usually done under general anaesthesia.
A nerve block, an injection of local anaesthetic near the nerves to the joint, is often added. It keeps the joint comfortable for many hours after surgery, so you can start moving sooner. The anaesthetist meets you before the operation to choose the safest plan for your health.
The Implants
What They Are Made Of
Implants are made from metal alloys such as cobalt-chrome and titanium, medical-grade polyethylene (a very hard-wearing plastic) and, in some hip replacements, ceramic. Each combination is chosen for strength, smooth movement and slow wear.
Cemented and Uncemented Fixation
A cemented implant is fixed with a special bone cement that sets within minutes, giving a firm hold straight away. An uncemented implant has a rough or coated surface that the bone grows into over the following weeks. Some operations use both. The choice depends on the joint, the quality of your bone and your age.
How Long They Last
Joint replacements usually last 15 to 20 years, and with sensible activity and a healthy weight, many last even longer. If an implant does eventually wear or loosen, it can be replaced in a revision operation.
Conventional and Robotic-Assisted Surgery
You may hear about robotic-assisted joint replacement, which is offered at some hospitals in Thane. In these systems, a computer helps the surgeon plan the operation and guide the cuts, while the surgeon still performs the surgery. Research so far shows similar long-term results to conventional surgery done well by an experienced surgeon.
What matters most, with any technique, is accurate alignment of the implant, good balance of the ligaments and a committed rehab programme. Dr. Gadkari will explain which approach suits your joint.
Minimally Invasive Surgery
Some joint replacements can be done through a smaller cut that disturbs fewer muscles. This may mean less pain and a slightly quicker start to recovery. It is not suitable for every patient, and the size of the cut matters far less than placing the implant accurately.
The Day of Your Operation
On the day of surgery, you can expect to:
- Stop eating and drinking at the time the hospital gives you, usually several hours before the operation
- Take only the morning medicines you have been told to take
- Meet the surgeon and anaesthetist, sign the consent form and have the correct joint marked
- Spend time in the recovery area after the operation before going back to your room
- Begin moving with the physiotherapist the same day or the next
Why Rehab Matters as Much as Surgery
The operation replaces the damaged joint, but it does not replace the muscles around it. Those muscles still need to support the joint, keep you balanced and help you climb stairs and get up from a chair. That is why a thorough rehab programme is essential for strength, range of movement and a faster recovery.
Joint arthroplasty improves function, greatly reduces pain and improves quality of life for people whose joints have been damaged by osteoarthritis, rheumatoid arthritis or injury. Combined with good rehab, it helps most people return to the activities they had given up.
“Your skill, dedication, and compassionate approach have made a remarkable difference in my recovery and overall well-being.”
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Frequently Asked Questions
Is robotic knee replacement better than conventional surgery?
Robotic-assisted systems help the surgeon plan and place the implant precisely. Studies so far show similar long-term results to conventional surgery done well by an experienced surgeon. What matters most is accurate alignment, good soft tissue balance and committed rehab.
What is the difference between a cemented and an uncemented implant?
A cemented implant is fixed with a special bone cement that sets in minutes. An uncemented implant has a rough surface that the bone grows into over a few weeks. The choice depends on the joint, your bone quality and your age.
How long does a joint replacement last?
Modern knee and hip replacements last many years. Most are still working well 15 to 20 years after surgery, and many last longer. Keeping a healthy weight and staying active with low-impact exercise such as walking, cycling and swimming helps them last.
Is joint replacement covered by health insurance?
Most health insurance policies in India cover joint replacement when it is medically needed. Check your policy for waiting periods, room-rent limits and any co-payment. The hospital's insurance desk can usually arrange cashless approval before you are admitted.
Book a Consultation
Talk to Dr. Gadkari about joint replacement. Message the clinic on WhatsApp or call, and they will find a time and place that suits you.
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