Disc Herniations:
The two most common degenerative spinal conditions are disc herniations and spinal canal stenosis.
The very first symptom of a lumbar disc herniation is typically low back pain radiating into the affected lower extremity (sciatica / acute radicular lumbago). Numbness in the corresponding dermatome and muscular weakness typically develop later. In cases of massive disc herniation, urinary bladder dysfunction (urinary retention or incontinence) or bowel dysfunction may occur (cauda equina syndrome). In the latter situation, urgent neurosurgical decompression must be sought without delay.
Disc herniations of the cervical spine often follow a less dramatic initial onset. Neck pain radiating into the arm(s) and/or interscapular pain between the shoulder blades are the earliest complaints. Paresis, muscular weakness, impairment of fine motor skills, and nocturnal awakenings caused by arm and hand numbness represent further advanced symptoms.
Not all disc herniations require operative intervention. On the contrary, the vast majority of herniated discs can be successfully managed with conservative therapy.
Surgical treatment for a disc herniation is indicated when: (a) pain remains unbearable despite strong analgesic medications and the patient can no longer find a comfortable resting posture, (b) motor deficits (paresis or paralysis) are present, (c) sensory disturbances are persistent and progressive, or (d) autonomic disturbances, namely bladder and/or rectal dysfunction, occur (cave: neurosurgical emergency). In modern operative care for disc herniations and spinal canal stenosis, minimally invasive endoscopic and exoscopic technologies (keyhole surgery) are increasingly employed. Although long-term randomized studies continue to expand, there is a distinct future trend favoring endoscopic procedures in terms of precision, reduced tissue trauma, and speed of postoperative convalescence.
Example 4: A 36-year-old nurse suffered an acute episode of severe lumbago (sciatica). Following 2 days of bed rest and ibuprofen 600 mg three times daily, the pain had completely resolved. Two weeks later, she experienced a severe recurrence. This time she was entirely immobilized and could barely get out of bed—partly due to agonizing pain, and partly due to marked weakness in her left leg. That same night, she experienced involuntary urinary loss (incontinence), prompting immediate emergency hospital admission. An urgent emergency MRI demonstrated a massive lumbar disc herniation at level L4/L5 on the left side, correlating precisely with her clinical symptoms. Due to acute loss of bladder control (cauda equina syndrome), emergency surgery was performed that very night. An endoscopic lumbar discectomy (sequestrectomy and nucleotomy) was carried out. Immediately following the procedure, the patient was completely free of radicular pain and fully recovered all neurological functions (particularly complete bladder continence). She was discharged home on the 2nd postoperative day. After a convalescent period of 3 weeks, she was able to return to work without restrictions. Nota bene: The course of disease in your specific case may differ from the clinical example described here.
Example 5: A 47-year-old overseas trading executive had been suffering from chronic neck pain for several years. Whenever traveling to Seoul on business, he regularly visited a renowned chirotherapist. Treatments had previously brought good relief and the patient was largely satisfied. During his recent 10-hour flight from Frankfurt to Seoul, however, he could hardly sleep due to excruciating pain. Analgesic medications had no effect whatsoever, and chiropractic manipulations also proved unsuccessful. An MRI of the cervical spine was promptly performed, revealing a large cervical disc herniation at level C5/C6. The patient flew back to Germany for specialized neurosurgical treatment. Upon clinical consultation, he could barely abduct either arm to the horizontal position (bilateral deltoid paresis, muscle strength grade 2/5 — presenting as acute proximal upper-limb weakness, or 'man-in-a-barrel' syndrome). Given the severe pain and progressive motor paresis, surgical indication was established. An exoscopic anterior cervical discectomy at C5/C6 was performed with simultaneous interbody cage fusion (ACDF). Postoperatively, the patient was immediately pain-free, and bilateral arm paresis resolved completely within 2 days. He was discharged on the 2nd postoperative day and resumed international business travel within 4 weeks without limitations. Nota bene: The course of disease in your specific case may differ from the clinical example described here.