What does motion preservation in the spine mean and what motion do we want to preserve?

With over 20 years of experience with disc replacement we have learned that Motion is important yet we have also learned that it must limited to three aspects, flexion, extension and rotation, not horizontal shifting.

How do we accomplish this contrled motion using advanced disc replacement implants?

The prodisc artificial disc replacement is designed to preserve the motion of the spine while providing the controlled and predictable motion we desire.

The implant design allows for spinal rotation, flexion and extension, while preventing horizontal shifting of the vertebrae that can damage the facet joints and cause additional pain.

This unwanted horizontal shifting of the vertebrae is referred to as either Retrolisthesis or Spondylolisthesis, however lateral shifts can also occur.

Spondylolisthesis and Retrolisthesis refer to the relationship of the discs to each other,

Spondylolisthesis is a spinal disorder in which a bone (vertebra) slips forward horizontally onto the bone below it.

Less common, Retrolisthesis occurs when a vertebra slips backward horizontally in the spine, relative to the vertebra below it.

Understanding the relationship of the disc to the facet joints is also important.

Any shifting of the vertebrae horizontally can disrupts the proper alignment and cause significant stress on the facet joints, resulting in pain and other symptoms.

Nerve Compression: The shifting vertebra can also impinge on or pinch the spinal nerves that pass through the area. This can result in pain, numbness, tingling, or weakness in the affected area, including the legs or arms.

Implant Fixation

The prodisc total disc replacement system utilizes midline keels for initial fixation to the vertebral bodies, providing the important immediate stability after implantation. This mechanism is combined with a porous plasma-sprayed titanium coating on the implant’s bone-contacting surfaces which effectively promotes bony ingrowth for long-term fixation.

Dr. Ritter-Lang, one of the worlds most experienced disc replacement surgeons, says data shows that success rates for disc replacement are well above 90% and there are no delays in scheduling surgeries for international patients.

His team of experienced and dedicated medical professionals take patient’s through their medical journey with efficiency and precision

Our German Specialists are renowned for their advancements in motion-preserving surgery.

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