ACDF, short for Anterior Cervical Discectomy and Fusion, is a surgical technique used to treat various conditions of the cervical spine, particularly cervical disc herniations, degenerative disc disease, osteophytes, spinal canal stenosis or other conditions causing compression of the nerve roots or spinal cord.
The goal of the procedure is to remove the cause of the neurological compression — the herniated disc, degenerated material or any pathological bone structures — in order to free the nerve roots and/or spinal cord.
Once decompression has been achieved, the treated segment is stabilized by inserting an interbody device, or cage, often combined with osteoinductive material or bone graft, with the aim of promoting fusion between the affected vertebral bodies.
Indications
ACDF is indicated in patients with neurological compression at the cervical level associated with significant clinical symptoms. These may include cervical pain radiating to the upper limbs, tingling, altered sensation, loss of strength, difficulty with fine hand movements, or signs of spinal cord dysfunction.
The technique may also be indicated when symptoms do not respond adequately to conservative treatments, such as medication, physical therapy, injections or other non-surgical procedures. In the presence of progressive neurological deficits or signs of cervical myelopathy, the surgical indication may become more urgent.
Surgical access
The cervical spine is reached through a small incision in the front of the neck. The anterior approach allows, when indicated, direct access to the affected disc or vertebral body, avoiding posterior manipulation of the spinal cord.
This access route allows the surgeon to work precisely at the site of the compression, reducing the risk of traction on the nerve structures. The incision is generally made along a natural skin crease of the neck, so that the scar becomes less visible over time.
Surgical technique
The procedure is performed with the patient in the supine position, lying face up. After general anesthesia, the surgeon accesses the cervical spine through the anterior approach of the neck, gently moving aside the surrounding anatomical structures, such as the trachea, esophagus and neurovascular bundles, until reaching the vertebral level to be treated.
Once the correct level has been identified, the pathological disc or disc herniation is removed. If necessary, any bone spurs or fragments compressing the nerve roots or spinal cord are also removed. After decompression, the disc space is reconstructed by inserting a cage or graft, with the aim of maintaining disc height, stabilizing the segment and promoting bone fusion between the vertebrae.
In some cases, an anterior cervical plate with screws may also be used, particularly when multiple levels are treated or when greater stability is required.
The duration of the procedure varies depending on the condition, the complexity of the case and the number of levels to be treated. In general, for a single-level cervical herniation, the procedure takes less than an hour.
Possible complications
ACDF is a well-established and generally safe procedure, but, like any surgery, it can involve possible complications. The most common complications, although occurring in a small percentage of cases, are dysphonia, meaning temporary hoarseness or voice changes, and dysphagia, meaning difficulty swallowing.
These issues are often transient and related to the manipulation or retraction of the anterior structures of the neck during surgery. In most cases they tend to improve progressively over the following days or weeks.
More rarely, hematomas, infections, vascular or nerve injuries, failed bone fusion, hardware migration or persistence of symptoms can occur. In cases involving treatment of multiple levels, the risk of complications may be slightly higher compared with single-level surgery.
Hospital stay and post-operative course
The hospital stay is usually short, generally lasting 1-2 days, unless particular clinical conditions or the need for longer monitoring apply. The post-operative course is generally well tolerated and often less painful compared with surgery performed at other levels of the spine.
After the procedure, the patient is mobilized early according to the surgeon’s instructions. Post-operative neck pain is usually manageable with common pain medication. Radicular symptoms, such as pain radiating to the arm or tingling, can improve quickly, while any neurological deficits may require longer and more variable recovery times.
Convalescence
After the procedure, the use of a cervical collar may be indicated for a period of about 1-2 weeks, depending on the type of procedure performed, the number of levels treated and the specialist’s preference.
During the first few weeks, it is advisable to avoid intense exertion, sudden neck movements, lifting weights and demanding physical activity. Normal daily activities are resumed progressively, while return to work depends on the type of activity performed and the patient’s clinical progress.
In general, a return to a regular daily routine occurs within about one month of the procedure, always following the surgeon’s guidance and attending scheduled follow-up visits.
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