Analysis of Hypovitaminosis D and Osteopenia/Osteoporosis in Spinal Disease Patients Who Underwent a Spinal Fusion at Illinois Neurological Institute, Peoria, IL., a Retrospective Review From November 1, 2012 to October 31, 2014 and Prospective Pilot From July 1, 2015-June 30, 2016

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

460 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-07-31

Brief Summary

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The purpose of this study is to determine if there is correlation between Vitamin D deficiency and spinal disease/spinal fusion surgery.

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Detailed Description

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Bone Health is becoming of great concern in the population \> 50 years old in the past several decades. Literature review has detected a high incidence of patients with hypovitaminosis D and back pain. Vitamin D Deficiency is in all races, age groups, and ethnic backgrounds affecting greater than one billion people worldwide1. There is a higher incidence of Vitamin D Deficiency noted in the northern states.

Adequate Vitamin D is essential in bone health and muscle function. It also has been reported to have positive effects on decreasing myopathy and /or musculoskeletal pain. Vitamin D has been shown to have a protective effect on fracture risk by providing increased bone matrix and on fall prevention through improved muscle function. 2

Deficiency of this vitamin can lead to impaired bone mineralization and bone softening diseases including osteomalacia and osteoporosis in adults. Osteomalacia has significant risk factors for vertebral fractures, and spinal instrumentation failure. Low-energy fractures or fragility fractures have been found to be more common because of an increase in life expectancy 3. The total 25-hydroxyvitamin D (25-OH-VitD) level (the sum of 25-OH-vitamin D2 and 25-OH-vitamin D3) is the appropriate indicator of vitamin D body stores. Presently, there is no universal consensus about a treatment cut point. Studies suggest \>30 ng/mL as the minimal concentration of 25-OH-Vit D Total is needed to avoid the adverse effects of deficiency4. Vitamin D insufficiency is considered at \<30ng/ml to 21 ng/ml and Vitamin D Deficiency is \<20 ng/ml of 25-OH-Vit D Total. Several researches have indicated increasing Vitamin D levels \>45 ng/ml will increase their immune system, bone health, lower risks of neurological disorders and cancers. 3,4

Influential pathophysiological changes in osteoporosis include the hyperactivity of osteoclasts compared to the need for bone remodeling or a decreased activity of osteoblasts compared to the need for bone cavity repair or laying down new bone.5 Osteoporosis has become synonymous with decreased bone mineral density (BMD). Bone Marrow Density scans (DXA) allows accurate diagnosis of osteoporosis, estimation of fracture risk, and monitoring of patients undergoing treatment.5 In postmenopausal women and men age 50 years and older, the WHO diagnostic T-score criteria categorizes a normal DXA scan of \<1.0 or above, low bone mass or osteopenia has a T score between \<1.0 and -2.5, and osteoporosis is designated with a T-score at -2.5 or below) are applied to BMD measurement by central DXA at the lumbar spine and femoral neck. 5

This study was done in two parts. Part 1 was the Retrospective Study from November 1, 2012 to October 31, 2014 and Part 2 is the Prospective pilot from July 1, 2015-June 30, 2016. We are anticipating to raise the awareness and identify the importance of evaluating for hypovitaminosis D and bone marrow density preoperatively in Neurosurgery Clinic for 12 months. Our goal is to show treating bone health in spinal diseased patients preoperatively will provide optimal bone health with better long term outcomes requiring less revision surgeries for our patients.

Research Question:

Part 1 - Retrospective Study

1\. What is the prevalence of Vitamin D Deficiency in patients over 50 undergoing spinal fusion surgery by Dr. Daniel Fassett, MD, MBA, Neurosurgeon?

Part 2- Prospective Study (screening period July 1, 2015-June 30, 2016)

1. What is the prevalence of Vitamin D Deficiency in patients over 50 undergoing spinal fusion surgery by Dr. Daniel Fassett, MD, MBA, Neurosurgeon?
2. Do patients with Hypovitaminosis D maintain therapeutic levels between 45 ng/ml to 75 ng/ml in approximately 3, 6, and 12 months postoperatively with supplements of Vitamin D3?
3. What are the incidences of osteopenia and osteoporosis in elective spinal fusion patients based on a Dexascans in patients over 50 undergoing spinal fusion surgery by Dr. Daniel Fassett, MD, MBA, Neurosurgeon?
4. Do the patients' demographic information, such as age, sex, BMI, and family history influence the outcome measures (Vitamin D deficiency, Osteopenia, and Osteoporosis)?

Conditions

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Hypovitaminosis D Spinal Disease Osteoporosis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

OTHER

Study Groups

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Retrospective (Part 1) Group

This is a retrospective pilot study in patients diagnosed with any form of spinal disease who underwent spinal fusion at OSF/INI by Dr. Daniel Fassett, MD, MBA, Neurosurgeon from November 1, 2012 to October 31, 2014. Only spinal fusion patients with a serum Vitamin D level prior to or at time of surgery and after surgery are included in this review. The following variables will be utilized to characterize the sample: age, sex, ethnicity, BMI, smoking history, pre-op Vitamin D level and supplement given. The charts reviewed will belong to subjects who were closely followed at the OSF/INI clinic.

No interventions assigned to this group

Prospective (Part 2) Group

This is a prospective pilot study in subjects diagnosed with any form of spinal disease that underwent cervical, thoracic, and/or lumbar spinal fusion at OSF/INI by Dr. Daniel Fassett, MD, MBA, Neurosurgeon from July 1, 2015 to June 30, 2016.

(Screening period July 1, 2015-June 30, 2016)

Only spinal fusion patients with a serum Vitamin D level, and Bone Marrow Density prior to or at time of surgery are included in this study. The following variables will be utilized to characterize the sample: age, sex, ethnicity, BMI, smoking history, pre-op Vitamin D level and supplement given. The subjects were closely followed at the OSF/INI clinic post-operatively at 3, 6, and 12 months. Pre-op Vitamin D level and Bone Marrow Density will be measured at the baseline, and again at 3, 6, and 12 months.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. 50 years old or older.
2. Patients with any form of spinal fusion surgery performed by Dr. Daniel Fassett, MD, MBA, Neurosurgeon at OSF-INI from November 1, 2012 to October 31, 2014.

1. 50 years old or older.
2. Serum Vitamin D level checked prior to or at surgery.
3. BMD exam performed anytime within 2 years prior to surgery.
4. Patients with any form of spinal fusion cervical, thoracic, lumbar, surgery performed by Dr. Daniel Fassett, MD, MBA, Neurosurgeon at OSF-INI from July 1, 2015 to May 31, 2016.

Exclusion Criteria

3. Subjects diagnosed with chronic renal disease Stage IV or V, metastatic spinal disease, bariatric surgery, malabsorption syndrome, seizure medication and chronic steroid use greater than 3 months at time of surgery.

(Part 2, Observational Study)

(Screening period July 1, 2015-June 30, 2016)

5. Subjects diagnosed with:

* Chronic Renal Disease with a GFR \< 45 at Stage IV
* Metastatic Spinal Disease
* Bariatric surgery
* Seizure medication
* Chronic steroid use greater than 3 months at time of surgery.

Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No