OPLL (Ossification of Posterior Longitudinal Ligament) is a progressive spinal disorder in which the ligament running along the back of the spinal vertebrae gradually hardens and turns into bone. As this abnormal bone formation increases, it can compress the spinal cord and nerves, leading to neurological symptoms and mobility issues.

Early diagnosis and timely treatment are essential to prevent permanent nerve damage and maintain quality of life. Dr. Dilip S. Kiyawat, M.Ch. (Neuro), Neurosurgeon, provides expert evaluation and treatment for OPLL and other complex spinal disorders in Pune.
What is OPLL?
The Posterior Longitudinal Ligament (PLL) is a strong ligament located inside the spinal canal that helps stabilize the spine. In OPLL, this ligament gradually undergoes calcification and ossification (bone formation), causing narrowing of the spinal canal.
As the condition progresses, pressure is placed on the spinal cord and nerve roots, resulting in pain, weakness, and neurological deficits.
OPLL most commonly affects the cervical spine (neck region) but can also occur in the thoracic and lumbar spine.
Causes and Risk Factors of OPLL
Although the exact cause of OPLL is not fully understood, several factors may contribute to its development:
Genetic Factors
A family history of OPLL may increase the risk.
Age-Related Changes
The condition is more common in middle-aged and older adults.
Metabolic Disorders
Certain metabolic and hormonal conditions may be associated with ligament ossification.
Diabetes
Studies suggest a higher prevalence of OPLL among diabetic patients.
Chronic Spinal Stress
Long-term mechanical stress on the spine may contribute to ligament changes.
Symptoms of OPLL
Symptoms develop gradually as spinal cord compression increases.
Neck Pain and Stiffness
One of the earliest symptoms includes:
Chronic neck pain
Neck stiffness
Reduced neck mobility
Numbness or Weakness
Compression of nerves can cause:
Numbness in hands and fingers
Tingling sensations
Weakness in arms and legs
Reduced grip strength
Balance Problems
As spinal cord compression worsens, patients may experience:
Loss of coordination
Unsteady walking
Difficulty maintaining balance
Frequent falls
Walking Difficulty
Advanced OPLL can affect lower limb function, resulting in:
Difficulty walking
Leg weakness
Spastic gait
Reduced mobility
When Should You Consult a Neurosurgeon?
Seek immediate medical evaluation if you experience:
Persistent neck pain
Progressive numbness
Weakness in limbs
Difficulty walking
Balance disturbances
Loss of hand coordination
Early diagnosis can help prevent irreversible neurological damage.
Diagnosis of OPLL
Accurate diagnosis is essential for planning treatment.
Clinical Neurological Examination
A detailed assessment of:
Muscle strength
Reflexes
Sensory function
Balance and coordination
X-Ray
Helps identify abnormal bone formation along spinal ligaments.
MRI Scan
Provides detailed visualization of:
Spinal cord compression
Nerve involvement
Severity of stenosis
CT Scan
Often considered the gold standard for confirming ossification and evaluating its extent.
Treatment Options for OPLL
Treatment depends on the severity of symptoms and degree of spinal cord compression.
Conservative Management
Mild cases may be managed with:
Medications
Physical therapy
Activity modification
Regular monitoring
However, conservative treatment cannot reverse the ossified ligament.
Surgical Treatment
Looking for Specialized Surgical Care?
Learn more about diagnostic protocols, surgical techniques, and recovery in our dedicated procedure guide.
Dr. Dilip S. Kiyawat, M.Ch. (Neurosurgery)
Senior Consultant Neurosurgeon & Spine Specialist, Pune
Trained at premier medical institutes with more than four decades of dedicated neurosurgical practice in Pune. Specialized in microsurgical excision of tumors, complex spine stabilization, and emergency cranial trauma.