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  • dan_chazan
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    Post count: 2

    My friend had been a professional soccer player until he was 29 years old. After retiring from soccer he played tennis 3 to 4 times a week. 12 years ago at age 32 he had a herniated disc between L4 and L5. Two years later he had disc implant (Charite lll) at that spot. For 8 years he was symptom free. During a Tennis game he felt a pain and was able to ignore it for some time. As time went on the pain persisted and his feet became numb. X-ray revealed that the implant is not centered and tilted to the left and an MRI indicated a tear in the envelope of the implant. In addition a herniation was located at S1 L5. Two months ago a spinal fusion was carried out on S1-L5 (TLIF, RT Lumbur laminectomy, RT Lumbur discectomy). Immediately following the operation there was a considerable relief but it did not lust within two weeks the pain kept getting worse and so did the numbness in both feet. A CT and an MRI were done after those events. Today he is at a loss as to how to proceed. Is there any direction he can follow?

    Donald Corenman, MD, DC
    Moderator
    Post count: 8660

    The Charite disc (ADR-artificial disc replacement) typically fails like most lumbar artificial discs, with an endplate failure and disc malalignment. I am unclear as to why the L5-S1 level was fused but the L4-5 level was left alone. If back pain was a large part of his complaints, the L4-5 level probably is contributing to his total symptomatology. The new CT and MRI will be able to determine if the ADR is projecting into the spinal canal and how maligned it is. I would assume that the L4-5 level needs to be addressed surgically but I cannot be exact with limited information.

    Dr. Corenman

    PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
     
    Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.
    dan_chazan
    Participant
    Post count: 2

    Thanks a lot for your reply. The reason the L4-5 level was left alone was an attempt to carry out the most conservative intervention. Assuming that the ADR is projecting into the spinal canal, and a tear in the ADR envelope, what kind of surgical intervention is possible? Is removal of the ADR possible or is it necessary just stabilize the ADR? In the first case would an anterior route be necessary? Will the second case allow a posterior approach? What are the risk factors and considerations?
    Is there hope to maintain some flexibility in the spine?
    I know this is a loadfull of questions any help would be appreciated.

    Donald Corenman, MD, DC
    Moderator
    Post count: 8660

    A failure of an ADR implanted from the front generally needs an anterior approach for removal. The problem with this “redo” approach is that scar formation can make this approach quite difficult. Mobilization of the vena cava and iliac veins with scar formation can occasionally make retrieval highly difficult.

    If the disc replacement has failed but is not compressing the spinal canal, a posterior fusion can be performed. This ia a reasonable fix for a failed ADR. It would be better to remove the ADR, but with the potential complications, a posterior fusion is acceptable.

    Dr. Corenman

    PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
     
    Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.
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