Implant replacing an intervertebral disc with the aim of preserving some movement in selected patients.
OpenStax College — CC BY 3.0. Image source.
Understanding the approach
Disc replacement substitutes an intervertebral disc with an implant designed to preserve some movement. It can involve the cervical or lumbar spine, with different indications. Its purpose differs from fusion, which intentionally eliminates motion at the treated segment.
Indications and assessment
Selection considers symptoms, affected levels, bone quality, facet joints and any instability. Significant facet arthritis or osteoporosis may make this option unsuitable. Implant selection also depends on anatomical features and applicable device authorizations rather than on patient preference alone.
Benefits, limitations and precautions
Some selected patients achieve functional improvement, but preserving motion does not guarantee a normal spine or freedom from pain. Risks include infection, vascular or nerve injury, implant displacement or wear, and bone formation that restricts motion. Revision surgery can be complex.
Place in the care pathway
TAGMED does not perform disc replacement. Conservative options remain relevant before a decision when clinically appropriate. After implantation, physical treatment and return to activity should follow the surgeon’s advice; the presence of an implant changes precautions.
Goals should be practical: walking farther, returning to a chosen activity or reducing symptoms that interfere with sleep. Improvement immediately after an intervention does not establish lasting benefit. Follow-up compares function with the starting point, records adverse effects and considers progress between appointments. An inadequate response should prompt a review of the clinical explanation or proposed approach, rather than an automatic extension of the same treatment.
Before starting, describe the outcome you want, treatments already tried and difficulties encountered. Ask how the response will be measured and when another option would be preferable. Available reports complement the discussion without replacing your current experience, priorities or preferences.
Frequently asked questions
Is it a new biological disc?
No. It is a mechanical implant.
Is it always better than fusion?
No. Outcomes depend strongly on appropriate selection and indication.
Can several discs be replaced?
Possibilities vary with the region, device and clinical situation.
Does the implant always remain mobile?
Not necessarily; bone changes can restrict movement.
Should I disclose it before treatment?
Yes, together with the operative report and any restrictions still in place.
Conceptual diagram of clinical reasoning; not an anatomical drawing to scale.
Role of TAGMED care
This entry describes a medical or specialist option; it does not mean the intervention is performed at TAGMED. The clinic can discuss how its conservative services might fit into coordinated care, considering prescribed treatment, reports and specialist restrictions. Medication should not be stopped or changed on the basis of this page.
Medical references
- AAOS — OrthoInfo. Lumbar Artificial Disk Replacement.
- AAOS — OrthoInfo. Cervical Radiculopathy: Surgical Treatment Options.
References document the topic; their inclusion does not imply endorsement of TAGMED services by those organizations.
Educational information from The Spine Page. This entry does not replace an individual assessment. Documentary version: October 12, 2026. Sylvain Desforges, B.Sc., D.O., N.D., osteopath and naturopath.
TAGMED clinic contact details
For non-urgent consultations and information about available services.
Clinique TAGMED — Terrebonne
1150, rue Lévis, Suite 200
Terrebonne (Québec) J6W 5S6
450‑704‑4447
Clinique TAGMED — Montréal
1140, avenue Beaumont
Mont-Royal (Québec) H3P 3E5
1‑877‑672‑9060