Educational information for patients. It does not replace individual medical advice.
Certain conditions can rule out artificial disc replacement.
Active infection, severe facet joint degeneration and significant spinal instability are contraindications for particular implants, which means the device should not be used when they are present. Significant deformity and certain fractures or structural problems can also prevent motion preservation. Other findings, and milder versions of these, call for individual assessment rather than an automatic decision. Understanding who is not a candidate for artificial disc replacement therefore depends on both the diagnosis and the labelling of the specific implant.
Before recommending treatment, the surgeon must check the diagnosis against that implant's approved indications, contraindications and precautions.
Key takeaways
- Active infection, inadequate bone density, severe facet joint degeneration and significant spinal instability are contraindications for particular implants.
- Age alone does not decide candidacy, but it cannot be dismissed either, because the evidence behind each device differs.
- Adequate bone density is needed to hold an implant, and inadequate bone density is a contraindication for some devices.
- Like any spine operation, artificial disc replacement carries risks.
Does Age Affect Disc Replacement Candidacy?
Age alone does not decide candidacy, but it cannot be dismissed either, because the evidence behind each device differs.
The condition of the spine and the patient's general health carry more weight than a birth date, and bone quality is assessed directly rather than assumed from age. Some implants do carry age-related evidence limits. The activL lumbar disc labelling, for instance, states that safety and effectiveness have not been established above age 60, which is an evidence limitation rather than a blanket prohibition on ADR after 60. This is where research experience is relevant. Prof. Dr. Bertagnoli's ADR research and publications include a study of selected patients over 60 whose authors recommended judicious use. Such work shows that older adults have undergone ADR in appropriate cases, but it does not establish unrestricted eligibility or predictable results for older patients as a group.
What Are the Requirements for Artificial Disc Replacement?
There is no single universal list. In general, the symptoms should match a specific damaged disc, conservative care should have been tried, and the spine should have healthy enough facet joints, adequate bone quality and acceptable stability and alignment. Device-specific indications and contraindications also apply, so a formal evaluation is needed.
What Are the Risks of Artificial Disc Replacement?
Like any spine operation, artificial disc replacement carries risks. Patient information from the American Association of Neurological Surgeons on cervical artificial disc surgery and lumbar artificial disc surgery describes complications that can include infection, injury to nerves or nearby blood vessels, problems with the implant, loss of motion at the treated level, symptoms that persist or return, and the possibility of further surgery. A surgeon weighs these against the expected benefit for the individual diagnosis, which is part of deciding whether the operation is worthwhile.
Urgent warning signs: New loss of bladder or bowel control, numbness around the groin or inner thighs, or significant and worsening weakness in the legs needs urgent medical assessment rather than waiting for a routine consultation.
