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Renai International Hospital specializes in the diagnostic, surgical and rehabilitative needs of people with musculoskeletal conditions. Our facilities are designed to be state-of-the-art and are focused on high quality, cost effective, patient-centered care.



In addition to general orthopedic care, many of our surgeons specialize in other areas including: arthroscopy, cervical spondylosis, sports medicine, joint replacement, hand and upper extremity, foot and ankle and spine care. They are supported by physicians from a variety of other specialties including: internal and family medicine, cardiology, pathology, radiology and anesthesiology. Renai Orthopedics is equipped with advanced imaging techniques such as 64 slices CT scan and digital X rays.

Vertebral disc disease

Vertebral disc disease is usually caused by degeneration of the disc material, causing a loss of intervertebral disc height and placing excess stress on the already weakened disc. Eventually this stress can cause an outward bulging of the disc into the spinal canal. Front and back of the disc space are reinforced by ligaments so most protrusions occur to either side and press on the nerve instead of the spinal cord which may lead to shoulder pain, stiff neck, arm pain, tingling sensation of hand etc. Cervical disc degeneration is a common cause of neck pain, most frequently felt as a stiff neck.

Different types of vertebral disc disease include:

  • Cervical disc herniation
  • Cervical disease caused by vertebral arteries
  • Lumbar disc herniation
  • Lumbar disc bulging
  • Lumbar disc prolapse


Symptoms of cervical disc disease include neck and arm pain, which may radiate down into the hand. This pain may be associated with numbness and tingling over the arm and hand, which may feel like it is “asleep”. Additionally, weakness of the hand and arm muscles may develop.

Cervical disc degeneration can also contribute to spinal stenosis and other progressive conditions, as well as a more sudden disc herniation.


Cervical disc disorders if advanced enough are diagnosable on plain x-ray, which shows collapse or reduction in the height of the disc and possible bone spurs and bony end plate changes. An MRI is most useful diagnostic imaging for these conditions. The MRI shows if the disc is degenerated and best identifies the impingement on the nerves by bone or soft tissues surrounding them.


It is important to recognize that the presence of a disc bulge or protrusion, but all symptoms do not necessarily require surgical intervention. Many people who have degenerated or bulging discs never develop symptoms, and most have only minor symptoms can be treated with over-the-counter medications. Even those who develop more severe symptoms requiring a visit to their physician can be treated successfully with medication and physical therapy. We work with all of these health care practitioners to choose the treatment option that best meets our patient’s needs.

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Dr. WU Wenge