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An Industry Based, Retrospective, Cost Analysis of Vertebral Axial Decompression vs. Surgery for
Lumbar Disc Disease: 10 Case Studies.
David C. Duncan, MD, Don Keenan, SPHR, Ph.D.
Cost of medical care, from drugs and band-aids to surgery and long-term care is a hotly debated topic in the medical and lay press. The authors undertook this small collection of case studies to access differing costs associated with a relatively new treatment for lumbar disc disease and the old “gold-standard”, surgery. In the genera of modern television, two differing views of the same problem were included. That of industry, which is represented by the HR director of the participating oil refinery, and that of medicine, was represented by the M.D. supervising the medical treatment of those patients not receiving surgery. The introduction is divided to represent these viewpoints.
Human Resource Introduction
This study was undertaken to explore creative suggestions in controlling benefits costs while maintaining an overall competitive health care package; reducing pain, suffering, and absenteeism in the company workforce; and reducing the associated costs of medical insurance and employee absences to the company. The “costs”
data for this paper was derived from a five (5) year study involving 10 employee
case files from a small petrochemical refinery and the experience gained in the
diverse worlds of medicine and business.
One of the biggest challenges facing employers today is how to strike a balance in
controlling benefits costs while maintaining an overall competitive health care
package for the workforce. It is no secret that benefits costs, particularly health
care costs, are escalating.
Double-digit increases are projected over the next several years according to a
number of leading benefits consulting firms.
(Hewitt Associates, 2002,Philadelphia Business Journal, 2002)
Hewitt Associates is projecting a 15.4percent average increase for 2003 and this comes after last year’s rate hike of 13.7
percent. This marks the highest increase since the early 1990s. “Unless there is a
fundamental change in the way health care is delivered, costs will double in the
next five years,” said Jack Bruner, national health care practice leader, Hewitt
Associates. “This is a major concern for senior management as it impacts the
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bottom line of companies across the country.”
(Hewitt Associates, 2002) Healthbenefit costs for U.S. employers rose 14 percent in 2002, and are expected to
increase by 15 to 20 percent in 2003, according to a report released in August 2002
by the Philadelphia based Hay Group. “This is a very difficult time for companies
to cope with double-digit medical premium rate increases,” said Michael Carter,
vice president in Hay Group’s benefits practice. “In the current business
environment, most companies simply cannot afford to pass these costs along to
their customers.”
(Philadelphia Business Journal, 2002)You do not have to be a benefits expert in light of the forgoing projections to
understand that any reduction in health care expense would be a positive move for
a company. You must, however, face the added challenge of controlling these
costs while providing a competitive package. Employers must be creative and
“think out-of-the-box.” Benefits will continue to be one of the top recruiting and
retention tools for a productive workforce. How employers manage the design,
cost and administration will distinguish them as an “employer of choice.”
Although the decision algorithm of the physician (efficacy and safety) is important
to industry as well, employers bear the cost and must consider the cost. The
American College of Occupational and Environmental Medicine reports, “Ninety
percent (90%) of adults in North America experience an acute episode of low-back
pain at least once in their lives.” Additionally, the COEM continues, “Costs
associated with compensable low-back injuries are estimated at $50 billion to $100
billion a year, with only one-third of that amount representing medical expenses.
The remaining two-thirds include non-medical costs for income replacement
indemnity, service benefits and medical legal expenses. (American College of
Occupational and Environmental Medicine, 1998).
The number one reason Americans miss work, after the common cold, is back
injuries. The ever-escalating costs of providing excellence in medical treatment
for our employees have far reaching effects. As our costs rise we must place
controls on our expenses to limit the rise in product price. We are forced to resort
to strategies that become progressively more draconian. We limit out health care
by selecting managed care and generic pharmaceuticals. We then outsource the
very management of our health care to an entity that is selected because it produces
a ‘lower utilization” of resources. We export production to other countries with
lower “costs”. This in turn necessitates that reduce our work force. We watch as
other industries work within this model and see industry giants in petrochemicals,
finance, and transportation in bankruptcies that would have been unimaginable
even ten years ago. We must be open to creative solutions.
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Medical Introduction
Physicians traditionally consider cost last when determining proper medical
treatment. Physicians are more concerned with risk-benefit ratios and
consideration of cost may place the patient at risk of receiving sub-optimal care.
Back injuries are the single largest medical expense for work related injuries. It is
time that we broaden our scope of vision and seek more effective and less
expensive methods of treatment. For those that have invested a lifetime of study to
a specific mode of treatment this change will be challenging both academically and
financially. This challenge is not new. General surgeons faced it and prospered
following the introduction of Cimetidine 25 years ago. Surgeries for “peptic ulcer
disease” accounted for a full 1/3 of surgeries performed and they disappeared
almost overnight.
First and foremost we must consider our patients. But we must consider them
within the totality of their life. Perhaps a little more of the Family Medicine
viewpoint and a little less of the lumbar spinal surgery specialist viewpoint is in
order. If we treat a person, but he no longer has a job to support his family have
we helped our patient? If we treat many such patients and as a result their industry
is shipped overseas or goes bankrupt because of uncontrollable costs, have we
helped our patient? I think not. We must always be the patient’s unrelenting
advocate in preventing and decreasing suffering, but we must open our horizons
and provide our expertise to industry so that the best care can also be affordable.
When in medical school, I first heard the parable about the toolbox. I will
paraphrase it here, as it is quite apropos. If the only tool in a physician’s toolbox is
a hammer, every problem looks like a nail. It is time to add other tools. VAD is
also in my toolbox. It cannot fix every problem nor is it safe in every
circumstance. I frequently call for a hammer, but in many cases where I
previously would use a hammer, it stays in the toolbox.
The Human Resource administrator is the person who must wear two hats for
industry. He is a patient advocate and an industry protector. Five years ago, a
novel agreement was reached through the efforts of the HR administrator of a
petrochemical refinery and with the refinery’s corporate Medical Director. This
limited study was undertaken to determine if a much less expensive mode of
treatment would be at least as effective as surgery and provide a measure of cost
control for the industry
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The agreement offers refinery employees, Vertebral Axial Decompression (VAD)
utilizing the Vax-D (the only scientifically validated methodology that produces
negative intradiscal pressure), as a self-selected alternative to back surgery. This
agreement was not planned as a research tool, but as an open-ended, non-blinded,
outcome based trial. The trial was justified by the success rate demonstrated in
previously published Vax-D studies. [3,4,5,6,7]
To qualify for Vax-D, the worker was required to meet four requirements.
1. Have sustained an acute traumatic or cumulative back injury for which
surgery had been recommended.
2. Have a symptom history for a minimum of 3 months.
3. Meet the inclusion criteria for Vax-D.
4. Not have any of the exclusion criteria for Vax-D.
Over the last 5 years, despite an excellent safety record at the refinery and strict
adherence to OSHA standards, there have been 10 cases meeting the above criteria
(three work related and seven non-work related). Of these employees, 5 elected to
have surgery and 5 elected VAD.
This presented a unique opportunity to access the “cost” of therapy. The company
is self insured, and provides excellent coverage for its employees. All medical
costs were paid by the company and were monitored by the HR administrator.
Additionally, non-medical costs such as medical leave pay, replacement worker
pay, permanent partial disability award, and, unfortunately, one case of permanent
total disability award could also be tracked and determined. A true cost to the
employer, the ultimate payee, was determined by including these “non-medical”
costs of care.
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The following tables describe the outcomes of the surgical group and the VAD
group.
Medical Outcomes
Surgery Vax-D
_______________________________________________________________
Number of Patients
5 5Total Procedures
11 6Initial Outcome
All report some daily back pain All report pain freeCurrent Outcome
3 re-operated a second time 1 retreated a second
1 operated a total of 5 times time
1 on long term permanent disability All working
1 is candidate for permanent partial
disability
________________________________________________________________
The re-operations were due to continued pain and/or pain at a different level.
The retreatment with Vax-D was due to a traumatic injury that occurred, while
building a retaining wall of railroad ties at a lake house 2 - years after the initial
Vax-D treatment.
Medical Outcomes
This limited series suggests that Vertebral Axial Decompression (Vax-D) can
provide improved medical outcomes in patients with lumbar disc disease when
compared to surgery. These data further suggest that this is accomplished with
minimal risk.
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Cost Outcomes
Surgery Vax-D
________________________________________________________________________
Time off work
17.6 weeks average 36.75 hoursThe four patients that returned
to work averaged 9 weeks TTD.
The one now on PTD
was on TTD for 52 weeks
prior to adjudication.
Average wage $ 22.50/hr. $22.50/hr.
Wages Paid / case
$ 15,840 $ 826while off work
Average overtime $ 33.75/hr N/A
wage
Av. Overtime / case
$ 23,760 NonePTD/PPD total $ 726,142
Av. Disability/case
$ 145,228 NoneProcedures total $263,434 $ 31, 135
Av. / case
$52,687 $ 6,227Av. Employer cost / case
$ 237,515 $ 7,053____________________________________________________________________
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Discussion
“
Vax-D has demonstrated to us that is it medically safe and effective. The almostimmediate absence from pain, the lack of invasive procedure, and the direct
medical cost, as compared to surgery, is very cost effective to the employer. When
factoring in additional non-medical direct costs such as paid sick time,
replacement employee pay, and disability payment the cost effectiveness is orders
of magnitude
greater than surgery. The employees treated with Vax-D have lesscomplaints of pain and generally are happier with the results. Thus far, I give
Vax-D great marks in that it has proven to be a win-win situation for both the
company and the employee
” is the current assessment by the participatingrefinery’s Human Resource Administrator.
From a medical perspective, Vax-D has been rigorously demonstrated to be
successful despite its low cost and high safety record. However, as a medical
model, these case studies leave many questions for future research. How
equivalent were the injuries in both groups? Who well were the groups matched?
Is the “n” sufficient? How do pre and post-treatment imaging studies compare and
does that comparison actually matter? How long will the treatments last? [1,2] Are
employees, who work in a refinery representative of industry in general? Was the
failure rate for surgery representative? [1] Was the success rate of Vax-D
representative? [4] Does this refinery’s obvious concern for the employee’s
welfare represent industry as a whole?
Although a comparison of surgery and VAD efficacy demonstrates a statistical
relevance of the highest order that Vax-D was superior, p-values have not been
included in this report because the current model design was not adequate to
support such determinations. It does, however provide a basic model to access true
costs.
Even if this brief study overestimated the outcome of Vax-D by a factor of 10,
industry would be well served to treat every qualifying back injury with Vax-
D prior to consideration of surgery.
Clearly, more research is indicated.
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INDUSTRY COST CALCULATIONS
Assumptions:
Cost is determined by the amount of money that changed hands.
The reciprocal of cost is therefore revenue. The medical community primarily
views “cost” from the perspective of “medical revenue”. This perspective greatly
underestimates industry cost. The business community views cost in a much
more complicated way. It consists of direct medical expenses, employee wages
for the injured and replacement worker, indirect expenses including legal, and
indirect expenses including lost productivity. This process often overestimates
real costs. Although “Lost Productivity” was clearly much greater in those
patients who underwent surgery, we have deleted it from our calculations as it
varies dramatically from industry to industry and is the most difficult aspect to
calculate with precision. We are then left with actual dollar expense incurred by
the employer.
“Medical costs”
include ER visits, medications, diagnostic studies, braces,physical therapy, provider visits prior to and following the procedure, and the
medical procedure (surgery and/or Vax-D).
“Cost to Industry”
starts with “medical costs” and then includes wages for theworker and replacement worker as well as paid indirect expenses including legal
and disability. This represents the actual dollars spent or “cash-cost to industry” of
a medical procedure. It does not include intangible, but real costs such as lost
productivity. It also does not attempt to measure the ability of the patient to work
and earn at the same level post treatment.
Efficacy of surgery
We demonstrated a 60% “failure” rate of the initial surgeryover a 5-year period. Many would argue that this rate of failure may be excessive,
although recent reviews of back procedures (laminectomy discectomy with fusion)
suggests that this may actually underestimate the failure rate. [1] However, in the
following calculations, we have assumed surgery to be the gold standard, and
100% successful.
Efficacy of Vax-D
A 100% “success” rate in this small group over-estimates thepublished efficacy of 70%. Calculations will be made assuming the published 70%
success rate.
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We recognize that these assumptions over-estimate surgical success and underestimate
VAD success as Vax-D “failures” generally are improved sufficiently to
avoid surgery. [2]
Duration of efficacy
for surgery is difficult to assess. Several different surgicalprocedures were undertaken, however, such is also the case in practice. Choice
and frequency of surgical procedure seems to be more closely related to the
number of available surgeons than any other criteria. [1]
Duration of efficacy
for Vax-D has recently been demonstrated to be nearly 100%at 4 years. Those patients (70%) who achieved initial success did not regress over
a 4-year period. [2]
Safety
of surgery is well reported in the medical literature. Serious complications,other than the need for re-operation, are relatively rare. Death is extremely rare.
Although rare, these complications do occur. No serious safety problems, other
than 6 re-operations, were present in this study.
Safety
of Vax-D has not been specifically reported in the medical literature.Personal experience and discussion with the authors of previous studies produced
no experience of medical injury related to the use of VAD when following Vax-D
protocols. At this time there are approximately 1500 Vax-D procedures done
daily. There has been only one reported significant, but not life-threatening injury
in the last 15 years. No safety problems were present in this study.
Utilizing the actual cost experience to the refinery and the above assumptions,
calculations of cost savings to industry were determined for 100 eligible patients
treated with Vax-D and assuming that the 30% that failed Vax-D would then
undergo surgery. These were then compared to an identical group of patients
being treated with conventional surgery alone.
The average, per patient, “cash-cost to industry” for the surgery treated injury was
$263,434. The average, per patient, “cash-cost to industry” for the Vax-D treated
injury was $7053.
100 patients treated with Vax-D would cost industry $705,300 dollars, using these
assumptions, thirty would not have satisfactory results.
(Although it is ourexperience that most of those Vax-D “failures” would have had sufficient
improvement to no longer elect surgery, for these calculations, we assume all of
the Vax-D failures would subsequently undergo surgery.)
The cost to industry for10
surgery on these 30 patients is $7,125,450. “Cash-cost to industry” to treat 100
patients using Vax-D as a preferred treatment followed by surgery in Vax-D
failures would be $7,830,750. Actual cost could be substantially less with
additional savings of $237,515 for each of the 30 VAD failures that were
sufficiently improved to avoid surgery.
To treat the same patients with only surgery would have a “cash-cost to industry”
of $23,751,500.
The inclusion of Vax-D as a necessary step for qualifyingpatients who fail conservative treatment, would save industry a minimum of
$15,000,000 in direct costs for every 100 patients treated.
Author’s note: The term Vertebral Axial Decompression has been noted
interchangeably utilizing two acronyms Vax-D and VAD. Perhaps the generic
term VAD would be more accurate as Vax-D is a protected term of the company
that manufactures the equipment that I use. However, as there are several
manufacturers that produce equipment that can distract the lumbar spine in an axial
orientation there is only one that can demonstrate profound negative pressures
when doing so. That is the Vax-D. Without the negative pressures there is no
medical evidence for medical success.
It is not within the scope of this paper to delve into the physiology and physics of
why this is so. This information is available elsewhere. The scope of this paper is
limited to an appraisal of “costs” of surgery as compared to VAD only when the
VAD is accomplished with the Vax-D equipment.
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References
1. Dvorak J, Gauchat M H, Valach L. The Outcome of Surgery for Lumbar
Disc Herniation I. A 4-17 Years’ Follow-up with Emphasis on Somatic Aspects.
Spine 1988; 13:1418-1422.
2. Boudreau D, et. al, Four Year Outcome of Vax-D.
Anesthesiology News Vol. 29, No. 3, March 2003
3. Gustavo Ramos, M.D. and William Martin M.D., “Effects of Vertebral
Axial Decompression on Intradiscal Pressure”,
Journal of Neurosurgery, 81:350-353, 1994.
4. Earl E. Gose, M.D., William K. Naguszewski, M.D., and Robert K.
Naguszewski, M.D., “Vertebral Axial Decompression Therapy for Pain Associated
with Herniated or Degenerated Discs or Facet Syndrome: An Outcome Study”,
Journal of Neurological Research, Vol. 20, No. 3, April 1998.
5. Frank Tilaro, M.D., “The Effects of Vertebral Axial Decompression On
Sensory Nerve Dysfunction”,
Canadian Journal of Clinical Medicine, January 1999.
6. Eugene Sherry, M.D., F.R.A.C.S., Peter Kitchner, M.B., B.S.,
F.R.A.N.Z.C.R., and Russell Smart, M.B., ChB., “Prospective Randomized
Controlled Study of VAX-D and TENS for the Treatment of Chronic Low Back
Pain”,
Journal of Neurological Research, October 2001.7. William K. Naguszewski, M.D., Robert K. Naguszewski, M.D., and Earl
Gose, M.D., “Dermatomal Somatosensory Evoked Potential Demonstration of
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