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Is Multi-Level Spine Fusion
 An Acceptable Primary Treatment
For Low Back Pain?

 
Professor Klaus-Peter Schulitz, Orthopaedic Department, Heinrich-Heine-University, Düsseldorf, Germany in an editorial published in the MedFak Orthopaedic Journal, March 22, 2004 pointed out that the continued use  of pedicle screw fixation in the treatment of degenerative disc disease had to be questioned:


Spinal fusion as a treatment for back pain, as opposed to progressive neurologic deficit, is clearly an important and highly controversial subject. 

 Carragee has indicated that, at best, only 50% of such patients have a high quality outcome (The Role of Surgery in Low Back Pain, Current Orthopaedics, 2007).  Deyo has pointed out  that the small advantage of instrumentation in promoting solid bony fusion is of little advantage in promoting pain relief or functional recovery but also  is associated with a higher complication rate (Back Surgery-Who Needs It?, N Engl J Med, 2007). 

The graph to the left presents data from the U.S. Congressional Budget Office.  The number one cost is that due to psychiatric, psychologic, and drug-related disorders.  The second highest cost relates to back disorders and back pain.  Although the prevalence of back pain has not changed the number of spinal fusions surgeries has skyrocketed.  The 2007 Back Letter indicated that complex spinal fusions (i.e. instrumented circumferential fusions) have risen from 1.93 per 1,000 back/ spine cases to 49 per 1,000 in 2004.
 This represents a 2,439% increase in market utilization.  In 1998 the total expenditure for treating back pain in the U.S. was estimated to be about $26.3 (three times the cost of treating all cancer).  The estimate for 2005 was $86, a 327% increase.  Almost certainly much of this increase is due to ill advised spinal fusion surgeries for the treatment of low back pain.

80% of the American population experience at least one episode of disabling back pain during their lifetime and nearly 25% of Americans suffer from chronic back pain.  Many of these people are being told by spine surgeons that multilevel instrumented fusion is the answer.

Carragee has indicated that, at best, only 50% of such patients have a high quality outcome (The Role of Surgery in Low Back Pain, Current Orthopaedics, 2007) and State of Washington statistics show that 22% of patients who had fusions for the treatment of low back pain required further surgery.  Deyo has pointed out  that the small advantage of instrumentation in promoting solid bony fusion is typically of little value in promoting pain relief or functional recovery.  Multilevel instrumented fusion for low back pain also begets significantly higher complication rates (Back Surgery-Who Needs It?, N Engl J Med, 2007). 

These observations are frightening.  Unfortunately, for patients these important disclosures do not appear to have yet reached grass root levels in America.  Illustrated below is one, of many, case examples in point:

This 64 year old retired widow was seen by a spine surgeon for the treatment of low back pain of three years duration.  At the time of her first examination, on the basis of her MRI study he recommended, and then performed, a 4 level 360 degree instrumented pedicle rod and screw fusion.  Relief of back pain lasted only 9 months and when seen 2 years following surgery this patient was significantly more disabled by back pain and had developed additional problems related to transmitted stress .
In the case above the patient was not presented with any other surgical options.  When asked why she accepted the recommendation for such extensive surgery she replied: "I'm a widow, and I'm alone, I just didn't have anyone to ask about it."

What would motivate a surgeon to make such a recommendation not in the patient's benefit?  Clearly there are strong financial incentives for spine surgeons as indicated by the exuberant growth of specialty spine clinics in association with hospitals.  There is also evidence that some "Fellowship Training" Programs promote this practice.  This is well illustrated by the following letter of inquiry received from a practicing neurosurgeon in the State of Washington:

There exists today a plethora of cases similar to the one presented above.  Some believe that this problem has now reached the proportions of a true public health care concern.   Most certainly the great numbers of such patients now being seen in spine care practice have created a new category of "failed back surgery" cases which may now eclipse lateral spinal stenosis as the most common cause of spine surgery failure.  These cases have also allowed Chronic Pain Rehabilitation Programs to become big business because of the increasing need for such. 

While 1 or 2 level spine stabilizations (many options now exist) may be reasonable treatment for patients incapacitated by back pain who have completed the gamut of other non-surgical therapies in today's world there can not be, in our opinion, any justification for performing multi-level rigid instrumented fusions as primary treatment for low back pain.  Hopefully, in the not-too-distant future, all such back pain patients will be managed by truly minimally invasive restorative spine procedures performed by interventional radiologists and not surgeons.

Burton Report is a strong advocate of allowing the patient to be in the "drivers seat."  Burton Report is also a strong advocate of patients being well informed prior to making important medical care decisions.