Elective cervical spine surgery: Recent research

Ross Hauser, MD

People considering cervical spine surgery are usually trying to answer two questions: “Is the abnormality on my scan really causing my symptoms?” and “Which treatment gives me the best chance of meaningful, lasting improvement?” The answers depend on whether the main problem is spinal cord compression, a pinched nerve root, deformity, instability, or pain arising from another structure.

Many people have successful cervical spine surgery. Surgery can be necessary—and sometimes urgent—when spinal cord or nerve function is deteriorating. Other patients have persistent pain, disability, swallowing problems, adjacent-segment degeneration, or another operation after their first procedure. The goal of this updated review is not to promote or discourage surgery. It is to help patients understand what different operations are designed to accomplish, what recent research can and cannot tell us, and why matching the treatment to the pain generator matters.

This article is part of our cervical surgery series:

Cervical spondylosis, radiculopathy, and myelopathy are not the same diagnosis

“Cervical spondylosis” describes age- or injury-related degenerative changes in the discs, vertebral bodies, facet joints, and ligaments. These changes may narrow the spinal canal or the openings through which nerve roots exit. They can be present with or without symptoms.

Cervical radiculopathy occurs when a nerve root is irritated or compressed. It may produce radiating arm pain, numbness, tingling, or weakness in a pattern related to the affected nerve.

Degenerative cervical myelopathy (DCM) involves spinal cord impairment caused by degenerative compression. Warning signs include declining hand dexterity, hand numbness or weakness, gait imbalance, leg stiffness, falls, and, in advanced cases, bowel or bladder disturbance. A 2024 clinical review emphasized that earlier recognition and treatment may reduce neurological decline.(1)

This distinction is critical. A patient with progressive spinal cord dysfunction should not delay surgical evaluation while pursuing routine pain treatments. By contrast, an MRI showing disc degeneration in a person with stable axial neck pain does not, by itself, establish that an operation will relieve the pain.

What the main cervical operations are intended to do

Anterior cervical discectomy and fusion (ACDF)

In ACDF, the surgeon approaches from the front of the neck, removes a disc and other compressive material, and fuses the treated level. It can directly decompress a nerve root or the spinal cord and may restore alignment. Tradeoffs include loss of motion at the fused segment and risks such as swallowing difficulty, hoarseness, graft or cage subsidence, nonunion, and stress at adjacent segments.

Cervical disc arthroplasty

Cervical disc arthroplasty, or artificial disc replacement, also removes the diseased disc but attempts to preserve motion instead of creating a fusion. It is not appropriate for every patient. Severe facet-joint degeneration, marked instability, osteoporosis, major deformity, or anatomy outside the device’s indications may make fusion or another approach more suitable.

Posterior cervical foraminotomy

Posterior cervical foraminotomy enlarges the nerve-root opening from the back of the neck. It can preserve the disc and motion in selected patients with one-sided foraminal nerve-root compression. It does not address every source of central canal compression, deformity, or instability.

Laminoplasty and laminectomy with or without fusion

These posterior procedures create more room for the spinal cord across multiple levels. Laminoplasty preserves more motion by hinging the lamina open. Laminectomy removes the lamina; fusion may be added when alignment or stability is a concern. Choice of approach depends on the number and location of compressed levels, cervical alignment, mechanical stability, pain pattern, bone quality, prior surgery, and the surgeon’s judgment.

Newer research: The “best” operation depends on the diagnosis and the patient

Posterior foraminotomy versus ACDF for single-level cervical radiculopathy

The 2024 FACET randomized trial compared posterior cervical foraminotomy with ACDF in patients with single-level cervical radiculopathy. At two years, 243 patients had follow-up data. The predicted success rate was 81% after posterior surgery and 74% after anterior surgery; the study found posterior surgery noninferior to ACDF for success and arm-pain reduction. Serious surgery-related adverse events occurred in 8% of the posterior group and 9% of the anterior group, with reoperations in both groups.(2)

This does not mean that posterior surgery is better for all patients. It means that a motion-preserving posterior option can be reasonable when the anatomy and diagnosis match the study population—primarily one-sided, single-level nerve-root compression.

Long-term improvement after ACDF is possible, but residual disability matters

One of the studies retained from the original version of this article followed patients for more than 20 years after ACDF for cervical radiculopathy. Among 50 respondents, 71% achieved a clinically relevant improvement in pain, while 41% achieved a clinically relevant improvement in Neck Disability Index score. The majority still reported some residual disability, and the two fusion techniques compared did not differ significantly.(3)

This long-term study is valuable, but it was small and only 50 of the original participants completed the very late follow-up. Its message is balanced: durable improvement is possible, yet pain relief and functional recovery are not guaranteed to occur together.

Cervical disc replacement and ACDF both can provide durable benefit

A prospective randomized study reporting 20-year outcomes found sustained improvement in neck pain, arm pain, and disability after both cervical disc arthroplasty and ACDF in the patients available for long-term follow-up.(4)

The main clinical question is therefore not simply “disc replacement or fusion?” Patient selection matters. Motion preservation may be attractive, but an artificial disc is not a treatment for unrecognized segmental instability, advanced facet disease, poor bone quality, or every multilevel disorder. Long-term device studies also tend to involve selected patients treated by experienced surgeons, and follow-up attrition can affect the results.

What recent complication research adds to the discussion

A 2025 systematic review and meta-analysis combined 222 observational studies involving 50,584 ACDF patients. The pooled overall complication rate was 16%. Frequently reported complications included neck swelling (11.3%), pseudarthrosis or nonunion (10.0%), dysphagia (9.5%), cage or graft subsidence (9.4%), worsening myelopathy (7.7%), and hoarseness (2.3%). Older age and a greater number of fused levels were associated with a higher pooled complication rate.(5)

These figures should be used for informed discussion, not as a personalized prediction. The review pooled studies from different hospitals, eras, techniques, definitions, and follow-up periods. An individual patient’s risk can be higher or lower depending on age, health, smoking, bone quality, number of levels, procedure, and surgeon experience.

An earlier registry study of more than 13,400 cervical operations found reoperation rates of 1.24% within 30 days and 3.30% within 90 days.(6) These are early reoperations and do not measure later procedures for nonunion, adjacent-segment disease, recurrent compression, or device problems.

Who improves after surgery for degenerative cervical myelopathy?

A 2025 analysis of 554 surgically treated DCM patients in a Canadian multicenter registry found that 41.3% reached a clinically important improvement in neck-related disability and 59.6% reached that threshold in a general health-quality measure at one year. Shorter symptom duration was associated with a greater chance of improvement. Older age, more involved levels, and kyphosis were among the factors associated with a lower likelihood of response in parts of the analysis.(7)

These results do not mean that surgery “failed” whenever a questionnaire threshold was not reached. In DCM, preventing further neurological decline may itself be an important goal. The study was observational and identifies associations rather than proving that changing any one factor will change the outcome. It does reinforce the importance of timely assessment when myelopathic symptoms are progressing.

Recovery is more than the X-ray or MRI result

The original article cited a Norwegian registry study of 3,387 working-age patients who underwent surgery for cervical radiculopathy. Half had returned to work by four months, and 71.7% had returned by three years. Fewer sick-leave days before surgery were more strongly associated with return to work than postoperative symptom improvement.(8)

This illustrates why a technically successful decompression or fusion does not determine every real-world outcome. Baseline disability, job demands, general health, pain duration, sleep, fear of movement, rehabilitation, and socioeconomic factors may all affect recovery.

Postoperative collar use also deserves individualized discussion. A 2024 systematic review of 25 studies found that collars sometimes improved short-term pain or patient-reported outcomes after fusion, but most studies did not show a significant difference in fusion rates. After motion-preserving procedures, prolonged collar use was associated with more axial pain and less final range of motion.(9) The evidence was not strong enough to support one universal collar protocol; patients should follow the instructions of their operating surgeon.

Symptoms and imaging. Do they agree?

Some patients have severe-looking MRI findings with modest symptoms. Others have disabling symptoms that are poorly explained by a neutral, supine scan. Arm symptoms may arise from cervical nerve-root compression, but they can also be influenced by the brachial plexus, shoulder, peripheral nerves, or muscle and fascial entrapment.

Before elective surgery, the working diagnosis should explain:

why the symptoms follow a particular neurological or mechanical pattern;
whether examination findings agree with the proposed level;
whether the imaging abnormality is capable of causing those findings;
whether instability, deformity, shoulder disease, or peripheral nerve entrapment changes the plan; and
what specific outcome the operation is expected to improve.

At Caring Medical, we also evaluate selected patients for ligament-related cervical instability when their history and examination suggest abnormal motion. A review authored by members of our team described the proposed relationship between capsular-ligament laxity, cervical instability, and chronic neck pain.(10) This is a hypothesis-informed clinical framework supported largely by biomechanical evidence, observational literature, and clinical experience. It should not be presented as proof that ligament laxity explains every case of spondylosis, radiculopathy, or surgical failure.

Earlier comparative studies

A propensity-matched analysis compared short-term outcomes after multilevel ACDF, laminoplasty, and laminectomy with fusion.(11) A small historical cohort compared laminoplasty with laminectomy and posterior fixation.(12) Other researchers used patient-specific or computer-generated models to examine how laminectomy, laminoplasty, and fusion may change spinal-cord stress, motion, and adjacent-level loading.(13)(14)

These studies help explain why alignment and stability influence the choice of operation. They do not establish one universally superior procedure. The clinical comparisons were retrospective or small, and computer models simulate biomechanics rather than measuring patient recovery. Research also suggests that preoperative foraminal stenosis and nutritional status may be associated with postoperative kyphosis after laminoplasty, reinforcing the need to assess alignment, bone and nutritional health, and the entire compression pattern before surgery.(15)(16)

When a nonsurgical opinion may be reasonable—and when not to wait

For stable neck pain or radiculopathy without progressive neurological loss, a patient may reasonably discuss physical therapy, activity modification, medication, targeted injections, and other condition-specific options before elective surgery. When suspected ligament injury or instability is part of the problem, a focused assessment may help determine whether a regenerative injection approach is appropriate. Evidence for prolotherapy in cervical instability is not equivalent in quantity or quality to the evidence supporting decompression for confirmed DCM, and it is not a substitute for urgent spinal-cord evaluation.

Seek prompt medical or surgical assessment for progressive weakness, new loss of hand coordination, increasing gait imbalance or falls, severe bilateral neurological symptoms, or new bowel or bladder dysfunction. Emergency evaluation is also warranted after significant trauma or when symptoms suggest infection, cancer, fracture, or stroke.

Summary

Recent research supports several practical conclusions. Surgery can improve pain and function and can protect the spinal cord when compression is clinically important. Posterior foraminotomy may perform as well as ACDF in carefully selected single-level radiculopathy. ACDF and artificial-disc replacement both can provide durable benefit, but neither eliminates the possibility of residual symptoms or later surgery. Complication rates vary widely, and multilevel treatment, age, alignment, symptom duration, and diagnosis all influence the discussion.

The most important decision is not whether cervical surgery is generally “good” or “bad.” It is whether the proposed operation addresses the correct structure, at the correct level, for the correct clinical problem—and whether the expected benefit justifies the individual risk.

If you would like to discuss whether cervical instability or another nonsurgical pain generator may be contributing to your symptoms, contact Caring Medical for information about an evaluation. Patients with progressive neurological findings should seek prompt evaluation from a spine surgeon or neurologist.

This article is for educational purposes and is not a substitute for diagnosis or treatment by a qualified healthcare professional. Individual recommendations require a medical history, physical examination, and review of appropriate imaging and tests.

References

1 Gallagher DO, Taghlabi KM, Bondar K, Saifi C. Degenerative Cervical Myelopathy: A Concept Review and Clinical Approach. Clinical Spine Surgery. 2024;37(1):1-8. [Google Scholar]
2 Simões de Souza NF, Broekema AEH, Reneman MF, et al. Posterior Cervical Foraminotomy Compared with Anterior Cervical Discectomy with Fusion for Cervical Radiculopathy: Two-Year Results of the FACET Randomized Noninferiority Study. Journal of Bone and Joint Surgery American. 2024;106(18):1653-1663. [Google Scholar]
3 Hermansen A, Hedlund R, Zsigmond P, Peolsson A. A more than 20-year follow-up of pain and disability after anterior cervical decompression and fusion surgery for degenerative disc disease and comparisons between two surgical techniques. BMC Musculoskeletal Disorders. 2023;24(1):406. [Google Scholar]
4 Sasso WR, Ye J, Foley DP, Vinayek S, Sasso RC. 20-year Clinical Outcomes of Cervical Disk Arthroplasty: A Prospective, Randomized, Controlled Trial. Spine. 2024;49(1):1-6. [Google Scholar]
5 Tavanaei R, Ansari A, Hatami A, et al. Postoperative complications of anterior cervical discectomy and fusion: A comprehensive systematic review and meta-analysis. North American Spine Society Journal. 2025;21:100596. [Google Scholar]
6 Patel V, Metz A, Schultz L, et al. Rates and reasons for reoperation within 30 and 90 days following cervical spine surgery: a retrospective cohort analysis of the Michigan Spine Surgery Improvement Collaborative registry. The Spine Journal. 2023;23(1):116-123. [Google Scholar]
7 Shakil H, Dea N, Malhotra AK, et al. Who gets better after surgery for degenerative cervical myelopathy? A responder analysis from the multicenter Canadian Spine Outcomes and Research Network. The Spine Journal. 2025;25(2):276-289. [Google Scholar]
8 Hara S, Lønne VV, Aasdahl L, et al. Return to Work After Surgery for Cervical Radiculopathy: A Nationwide Registry-based Observational Study. Spine. 2023;48(4):253-260. [Google Scholar]
9 McKeon JF, Alvarez PM, Martinez Castaneda D, et al. Cervical Collar Use Following Cervical Spine Surgery: A Systematic Review. JBJS Reviews. 2024;12(9). [Google Scholar]
10 Steilen D, Hauser R, Woldin B, Sawyer S. Chronic neck pain: making the connection between capsular ligament laxity and cervical instability. The Open Orthopaedics Journal. 2014;8:326-345. [Google Scholar]
11 Lee NJ, Kim JS, Park P, Riew KD. A Comparison of Various Surgical Treatments for Degenerative Cervical Myelopathy: A Propensity Score Matched Analysis. Global Spine Journal. 2022;12(6):1109-1118. [Google Scholar]
12 Rodríguez Domínguez V, Gandía González ML, García Feijoo P, et al. Treatment of cervical myelopathy by posterior approach: Laminoplasty vs. laminectomy with posterior fixation, are there differences from a clinical and radiological point of view? Neurocirugía (English Edition). 2022;33(6):284-292. [Google Scholar]
13 Vedantam A, Harinathan B, Warraich A, Budde MD, Yoganandan N. Differences in spinal cord biomechanics after laminectomy, laminoplasty, and laminectomy with fusion for degenerative cervical myelopathy. Journal of Neurosurgery: Spine. 2023;39(1):28-39. [Google Scholar]
14 Nishida N, Mumtaz M, Tripathi S, et al. Biomechanical analysis of laminectomy, laminoplasty, posterior decompression with instrumented fusion, and anterior decompression with fusion for the kyphotic cervical spine. International Journal of Computer Assisted Radiology and Surgery. 2022;17(9):1531-1541. [Google Scholar]
15 Seo J, Suk KS, Kwon JW, et al. Cervical foraminal stenosis as a risk factor for cervical kyphosis following cervical laminoplasty. The Spine Journal. 2022;22(8):1271-1280. [Google Scholar]
16 Takasawa E, Iizuka Y, Ishiwata S, et al. Impact of the preoperative nutritional status on postoperative kyphosis in geriatric patients undergoing cervical laminoplasty. European Spine Journal. 2023;32(1):374-381. [Google Scholar]