Disc replacement surgery removes a damaged spinal disc and substitutes it with an artificial disc designed to preserve some natural movement, offering an alternative to spinal fusion for carefully selected patients.
What disc replacement surgery is
Disc replacement surgery involves removing a damaged or degenerated disc between two vertebrae and replacing it with an artificial disc implant. Unlike spinal fusion, which joins the two vertebrae together and eliminates motion at that level, disc replacement aims to maintain a more natural range of movement at the treated segment. It can be performed in the neck (cervical disc replacement) or lower back (lumbar disc replacement), depending on where the damaged disc is located.
Conditions it is used for
Disc replacement is generally considered for degenerative disc disease and, in some cases, a herniated disc causing chronic back or neck pain that has not responded adequately to non-surgical treatment. It is not suitable for every patient with disc-related pain — significant instability, certain deformities, or advanced degeneration at multiple levels may make spinal fusion or another approach more appropriate instead.
How it compares with spinal fusion
The theoretical advantage of disc replacement over fusion is motion preservation at the treated segment, which some studies suggest may reduce stress and degeneration at neighbouring discs over time, alongside a comparatively quicker early recovery and less immediate postoperative pain for suitable candidates. However, candidacy depends heavily on individual anatomy and the specific disc problem, and fusion remains the more established and broadly applicable option for many patients — your surgeon will explain which is better suited to your MRI findings.
What the procedure involves
Disc replacement is typically performed through an anterior approach — an incision at the front of the neck or abdomen, depending on the level being treated — to access the spine while avoiding the nerves and muscles at the back. The damaged disc is removed and the artificial disc implant is precisely positioned in its place, before the incision is closed. Robotic or navigation-assisted systems are sometimes used during this and related spinal procedures to support precise implant placement; whether this technology is relevant to your case depends on your specific procedure and the equipment available.
Types of artificial discs
Artificial discs vary by design and material, including metal-on-metal and metal-on-polymer (plastic) constructions, and by whether they are designed for the cervical or lumbar spine. The specific implant used depends on the disc level being treated, your anatomy, and your surgeon's assessment and preference based on your individual case.
Who tends to be suitable
Good candidates are generally patients with disease limited to one or two disc levels, reasonable bone density, and overall spinal alignment that supports motion preservation, who have not achieved adequate relief from non-surgical care. This is an individual assessment — imaging, previous treatment, and overall health all factor into whether disc replacement, minimally invasive fusion, or another approach is recommended.
Recovery expectations
Recovery generally follows an initial period focused on wound healing and activity guidance, followed by a gradual increase in activity supported by physiotherapy to restore strength and movement. Many patients notice improvement in pain over the following weeks, with return to more strenuous activity generally more gradual — your surgeon will set a realistic timeline based on your specific procedure and recovery.
Risks to be aware of
As with any spine surgery, risks include infection, issues related to the implant (such as loosening or wear over time), nerve injury, blood clots, persistent pain, and anaesthesia-related complications. Your surgeon will discuss these risks specific to your case and procedure as part of informed consent.
What influences the cost
Cost depends on whether fusion or disc replacement is performed, the type and number of implants required, whether robotic or navigation assistance is used, and the length of hospital stay, along with insurance or cashless coverage. Call or WhatsApp NAIR Spine & Knee Clinic for a personalised estimate once your treatment plan is confirmed.
What a consultation involves
A consultation includes a review of your history, symptoms, and imaging, and a clear discussion of whether disc replacement, fusion, or a non-surgical pathway best fits your condition. Consultations are available at NAIR Spine & Knee Clinic, Kharghar and Ulwe; call or WhatsApp the clinic to confirm the current consulting schedule.
Frequently asked questions
Spinal fusion joins two vertebrae together to eliminate movement at that segment, while disc replacement removes the damaged disc and substitutes it with an artificial disc designed to preserve some natural motion. Both aim to relieve pain from a damaged disc, but they achieve it differently, and each suits different patients depending on the specific diagnosis.
Candidacy generally depends on the specific disc problem, the condition of surrounding discs and joints, bone quality, and overall spinal alignment. It is typically considered for degenerative disc disease or a herniated disc causing significant pain that has not responded to non-surgical treatment. Your surgeon will assess your imaging and health to determine whether disc replacement or another procedure, such as fusion, is more suitable.
Robotic and navigation-assisted systems can help surgeons plan implant position with additional precision during procedures such as disc replacement or spinal fusion. Whether robotic assistance is used, and what it adds, depends on the specific case and the equipment available — your surgeon can explain its relevance to your procedure.
Artificial discs are typically made from combinations of medical-grade metal and polymer (plastic) components, designed to allow some natural movement at the treated spinal segment. The specific type used depends on the disc level being treated and your surgeon's assessment.
Cost depends on the procedure chosen (fusion versus disc replacement), the type and number of implants used, whether robotic or navigation assistance is involved, and the length of hospital stay, along with insurance or cashless coverage. Call or WhatsApp NAIR Spine & Knee Clinic for a personalised estimate after consultation.
Talk to a spine and joint specialist
Share your symptoms, reports or scans and our team will help you book a consultation with Dr. Vishnu Vikraman Nair or Dr. Juilee Mhatre Nair at the Navi Mumbai location most convenient for you.