Procedure · Cervical spine
Posterior Cervical Foraminotomy
A pinched nerve freed from behind — no fusion, no implant, motion preserved.
What it is
A posterior cervical foraminotomy is a motion-preserving operation for a pinched nerve in the neck. Through a small incision at the back of the neck, using an operating microscope, Dr. Choi removes the bone and thickened ligament narrowing the neural foramen — the bony tunnel where the nerve root exits the spine. Once the tunnel is widened, the nerve has room again. Nothing is fused, no implant is placed, and the disc itself is left intact.
When it may be considered
This operation is for cervical radiculopathy — arm pain, numbness, or weakness from a compressed nerve root — caused by foraminal stenosis (bony narrowing from arthritis and bone spurs) or a far-lateral disc herniation sitting in the foramen. It is best suited to single-level, one-sided nerve compression without central spinal cord compression, spinal instability, or significant mechanical neck pain. When the problem is in the center of the canal, involves the spinal cord, or the segment is unstable, an anterior operation such as ACDF is usually the better choice.
What to discuss at consultation
Dr. Choi will correlate your arm symptoms with MRI findings to confirm the foramen — not the disc center, not another level — is the true source. He will also assess neck alignment and stability, because a foraminotomy preserves motion only when the segment is already stable. Bring any prior cervical imaging; the decision between a posterior foraminotomy, ACDF, and disc replacement turns on these details.
From Back Talk
Related reading: Cervical Radiculopathy: Arm Pain · Disc Replacement vs. Fusion
Who is a good candidate
The ideal candidate has persistent one-sided arm pain or weakness matching a single compressed nerve root, confirmed on MRI as foraminal narrowing, after a reasonable course of conservative care — or progressive weakness that should not wait. Patients with central stenosis, myelopathy, instability, or predominant neck pain (rather than arm pain) are generally better served by a different operation.
What recovery actually looks like
Most patients go home the same day. The arm pain that brought you in often improves quickly; the back of the neck is sore for days to a couple of weeks because the paraspinal muscles are gently moved aside during the approach. Desk work often resumes within 1 to 2 weeks. No rigid collar is needed — the spine was never destabilized. Bending, lifting, and twisting precautions last about 6 weeks; most are back toward full activities by about week 12.
Risks and how they are minimized
As with any cervical spine surgery, risks include nerve injury, spinal fluid leak, bleeding, infection, and incomplete relief. The posterior approach avoids the front-of-neck structures entirely — no risk to the esophagus, trachea, vocal cord nerve, or carotid — but works near the nerve root itself, which is why the microscope and a careful, limited bone removal matter. Dr. Choi will walk through your individual risk profile before any decision.
Alternatives considered first
Most foraminal nerve compression is first treated without surgery: activity modification, anti-inflammatory medication, and physical therapy. A selective nerve root injection — performed by pain management colleagues — can both confirm the diagnosis and calm the nerve. When surgery becomes appropriate, the alternatives are ACDF (anterior, with fusion) and cervical disc replacement (anterior, motion-preserving) — each suited to different anatomy, discussed openly at your visit.
Related procedures
Cervical radiculopathy · ACDF · Cervical disc replacement · Motion preservation · Second opinion
Conditions this procedure treats
This procedure is most often used for: Cervical radiculopathy and foraminal stenosis.
Frequently asked questions
What is a posterior cervical foraminotomy?
It is a surgery performed from the back of the neck to widen the neural foramen — the bony tunnel where a nerve root exits the spine. Using an operating microscope through a small incision, the surgeon removes the bone spurs and thickened ligament compressing the nerve. No fusion is performed and no implant is placed, so the neck keeps its normal motion.
How is it different from ACDF?
ACDF approaches from the front of the neck, removes the entire disc, and fuses the level with an implant — motion at that segment is eliminated. A posterior foraminotomy approaches from behind, leaves the disc intact, and preserves motion. Foraminotomy is best for one-sided foraminal nerve compression; ACDF is preferred for central disc herniations, spinal cord compression, instability, or significant neck pain.
Who is a good candidate for posterior cervical foraminotomy?
Patients with persistent one-sided arm pain, numbness, or weakness from a single pinched nerve root — confirmed on MRI as foraminal stenosis or a far-lateral disc herniation — especially after conservative care has not resolved it. It is not the right operation for central spinal stenosis, myelopathy, spinal instability, or predominant mechanical neck pain.
Does a foraminotomy destabilize the spine? Will I need a fusion later?
When performed for the right indication on a stable segment, a foraminotomy does not destabilize the spine — only a limited amount of bone is removed, and the disc and stabilizing ligaments are preserved. That is why no fusion or collar is needed. A fusion later is uncommon and usually relates to new degeneration at the level, not to instability caused by the foraminotomy itself.
What is recovery like after a posterior cervical foraminotomy?
Most patients go home the same day. Arm symptoms often improve quickly; soreness at the back of the neck lasts days to a couple of weeks. Desk work typically resumes in 1 to 2 weeks, with bending, lifting, and twisting precautions for about 6 weeks and a return toward full activities around week 12.
What are the risks of posterior cervical foraminotomy?
Risks include nerve root injury, spinal fluid leak, bleeding, infection, and incomplete symptom relief. The posterior approach avoids all front-of-neck structures (esophagus, trachea, vocal cord nerve, carotid artery). Working near the nerve root itself is the main technical consideration, which is why the operation is done under the microscope with limited, precise bone removal.
Initial consultation or second opinion?
If a herniated disc is still causing leg pain after conservative care, bring your imaging and your questions. Dr. Choi will review whether your symptoms match the herniation, and tell you plainly whether a foraminotomy is the right next step — and if not, what is.