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Does Nerve Root Compression Caused by Disc Herniation Always Require Surgery?
First, it is important to understand a very common clinical phenomenon: disc herniation does not necessarily cause pain. Some patients may have severe disc herniation yet remain free of obvious symptoms throughout their lives. Many people show disc herniation on spinal imaging studies such as MRI but feel no discomfort at all. Conversely, some patients show only mild disc herniation on imaging yet experience extremely severe symptoms. This discrepancy has been discussed and studied in the medical field for decades. If this mystery can be clarified, much of the pain caused by nerve root compression due to spinal disorders could be managed using simpler, safer, and more effective techniques.
When discussing this topic, I would first like to explain some basic concepts. The first is what the intervertebral foramen is and how it is structured. In simple terms, the intervertebral foramen is the space between two adjacent vertebrae and serves as the passageway for nerves to enter and exit the spine. Because the intervertebral disc lies in front of the foramen, a herniated disc can bulge backward into one side or both sides of the foramen, compressing the nerve roots that pass through it (as shown in the figure). If this occurs in the lumbar spine, the compressed structure is typically the sciatic nerve root; if it occurs in the cervical spine, it most commonly involves the brachial plexus or the dorsal scapular nerve, producing pain along the medial border of the scapula.
The second concept that needs to be explained is the symptoms of nerve root compression, which is critical for determining whether a patient’s symptoms are actually related to disc herniation. Many patients who seek treatment report that they have disc herniation; however, their main complaints are localized low back pain or neck pain, a sudden inability to move the neck or lower back freely, and pain confined to the local cervical or lumbar region. These symptoms are not caused by nerve root compression and are often unrelated to disc herniation. They are more likely due to local muscle, soft tissue, or facet joint injury.
Clinically, symptoms caused by disc herniation are characterized by radicular pain. Radicular pain is sharp, burning, or electric-like pain that radiates along a nerve pathway from the spine to other parts of the body, such as the arms or legs. This pain may be sharp and shooting, electric in nature, or deep and persistent, radiating from the back into the arm, leg, or foot. Some patients may also experience numbness, tingling (“pins and needles”), sensory loss, or weakness, such as reduced muscle strength or diminished reflexes in the arm or leg. Pain often worsens with coughing, sneezing, prolonged sitting, or specific movements. Therefore, when taking a medical history, the characteristics of the patient’s pain are crucial for diagnosis, rather than simply attributing pain to disc herniation based on imaging findings alone.
I would like to share a clinical case from more than a decade ago involving a motor vehicle accident. A man in his seventies came to my clinic and reported that three days earlier he had been driving a Mercedes-Benz SUV and stopped at a stop sign. He noticed a Honda Corolla had also stopped behind him. Just as his vehicle began to move forward, the car behind lightly bumped his rear bumper. He immediately got out to inspect the damage. The car behind had actually been fully stopped; the driver sneezed and accidentally released the brake pedal. The impact was extremely minor, leaving no visible damage to the bumper. They exchanged insurance information, and the patient left. At the time, he felt no immediate discomfort.
However, later that night, he was awakened by severe radiating pain in his left arm. He became extremely frightened, given his age, and feared he was having a heart attack. He went to the emergency department, where a CT scan revealed significant degenerative changes and disc herniation in the cervical spine. The patient asked whether the car accident had caused his disc herniation. Anyone with basic medical knowledge would recognize that such a minor impact could not cause disc injury. This indicated that the disc herniation had existed for many years. Previously, he had only experienced neck stiffness and limited range of motion without significant pain. Why, then, did such a minor impact suddenly trigger severe nerve root compression symptoms?
Why had the disc herniation not compressed the nerve previously, and why did it suddenly do so? Based on imaging, the cervical condition had likely been developing for at least eight years, possibly longer. At the time, I even had a curious thought: if he were struck again from another direction, would the nerve root compression symptoms disappear? In fact, in some patients, imaging shows disc herniation on both sides, yet the side with less protrusion and milder apparent nerve compression produces more severe symptoms, while the side that appears worse on imaging causes no symptoms at all. These repeated clinical observations forced me to reconsider and rethink our understanding of disc herniation.
Intervertebral foraminal stenosis is one of the major causes of pain in the neck, shoulders, low back, and upper or lower extremities. However, visualizing the pathology of nerve root compression remains challenging. In many cases, MRI findings of nerve root compression do not correlate with clinical symptoms and may even be unrelated. This discrepancy makes it more difficult to interpret imaging and to understand the pathological mechanisms underlying nerve root compression.
Over the past decade, we have re-examined this issue by studying the intervertebral foramen in terms of its structure, natural progression, degenerative changes, and dynamic morphological characteristics. Fortunately, we have gained a better understanding of the causes of radicular compression related to vertebral pathology, allowing for more accurate diagnosis and more effective use of non-surgical treatments. With four to six sessions of needle-knife (acupotomy) therapy, we are often able to effectively relieve symptoms and help patients regain a healthy quality of life. The key to solving this mystery lies in recognizing that, in addition to the bony framework of the intervertebral foramen, multiple soft tissue structures are involved. Anatomical studies have shown that numerous ligaments cross both the inside and outside of the intervertebral foramen and connect with neural and vascular structures. These ligaments are known as transforaminal ligaments. Their primary function is to stabilize the spinal nerve roots and maintain their normal position during spinal movement, preventing friction or collision with surrounding tissues.
However, when pathological changes occur—such as disc herniation or degenerative changes around the neural foramen—these ligaments may become compressed or deformed, or their attachment sites may shift. As a result, they may act as co-contributors to nerve root compression or restrain the nerve root, preventing it from escaping the narrowed, crowded space caused by pathology. Modern foraminal release techniques designed to restore nerve root mobility can be highly effective in relieving pain caused by disc herniation. More than 90% of patients achieve symptom resolution after four to six treatment sessions, and with targeted home rehabilitation exercises, recurrence can be prevented, making surgery unnecessary.
椎间盘突出导致的神经根压迫是否一定需要手术？
影像学与临床症状的“误区” 首先，了解一个非常普遍的临床现象至关重要：椎间盘突出并不一定会引起疼痛。 一些患者可能有严重的椎间盘突出，但终生没有明显症状；许多人在 MRI 等脊柱影像学检查中显示有椎间盘突出，却完全没有不适感。相反，有些患者在影像上仅显示轻微突出，却经历着极其严重的症状。这种“不一致性”在医学界已被讨论和研究了数十年。如果能揭开这个谜团，许多由脊柱疾病引起的神经根压迫疼痛，就可以通过更简单、更安全且更有效的方法得到解决。
核心概念：椎间孔与神经受压 在深入讨论之前，我首先想解释两个基本概念。 1. 什么是椎间孔及其结构？ 简单来说，椎间孔是相邻两节椎骨之间的空间，是神经进入和离开脊柱的通道。由于椎间盘位于椎间孔的前方，突出的椎间盘可能会向后突入椎间孔的一侧或两侧，从而压迫通过其中的神经根（如图）。 腰椎受压： 通常影响坐骨神经根。 颈椎受压： 最常见的是累及臂丛神经或肩胛背神经，导致肩胛骨内侧边缘疼痛。 2. 神经根压迫的症状（鉴别诊断） 这是判断患者症状是否真正由椎间盘突出引起的关键。许多患者就诊时自称患有椎间盘突出，但其主诉多为： 局部腰痛或颈痛。 突然无法自由转动脖子或腰部。 疼痛局限于颈部或腰部区域。 这些症状通常并非由神经根压迫引起，也往往与椎间盘突出无关，而更有可能是局部肌肉、软组织或小关节损伤所致。
什么是真正的“根性疼痛”？ 临床上，由椎间盘突出引起的症状具有**根性疼痛（Radicular Pain）**的特征： 性质： 尖锐痛、灼热痛或电击样疼痛。 放射路径： 沿神经路径从脊柱放射到身体其他部位（如手臂或腿部）。 伴随症状： 麻木、刺痛感（“针刺感”）、感觉丧失或无力（如肌力减退或反射减弱）。 诱因： 咳嗽、打喷嚏、久坐或特定动作往往会加重疼痛。 因此，在病史采集时，疼痛的特征对于诊断至关重要，而不能仅仅根据影像学表现就简单地将疼痛归因于椎间盘突出。
案例分享：轻微碰撞引发的“连锁反应” 我想分享一个十多年前的临床案例。一位 70 多岁的男性因车祸前来就诊。三天前，他驾驶 SUV 在停车牌前停下。后方车辆在起步时轻轻碰到了他的后保险杠。由于撞击极其轻微，保险杠甚至没有任何损伤，双方交换信息后便各自离开。当时，他没有感到任何不适。 然而，当天深夜，他被左臂剧烈的放射性疼痛惊醒。由于担心是心脏病发作，他去了急诊室。CT 检查显示其颈椎有明显的退行性变和椎间盘突出。患者询问是否是车祸导致了突出。 从医学常识来看，如此轻微的撞击不可能导致椎间盘损伤。这意味着椎间盘突出已经存在多年。此前，他仅有颈部僵硬和活动受限，并无剧烈疼痛。那么，为什么一次微小的碰撞会突然诱发严重的神经根压迫症状呢？
重新审视：隐藏在孔径内的“软组织秘密” 为什么之前的突出没有压迫神经，而现在却压迫了？在某些病例中，影像显示双侧都有突出，但突出较轻的一侧反而症状更重。这些观察促使我们重新思考对椎间盘突出的理解。
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