E J Woodard studies methods to enhance cranial surgeries, specifically looking into the use of a resorbable bone adhesive made from minerals. This new adhesive is designed to securely fix skull bone flaps after brain surgeries, offering a safer and more effective alternative to traditional metal plates and screws. By comparing the effectiveness of this bone glue in sheep, the research aims to pave the way for improved surgical practices in humans, avoiding complications linked to metal hardware.
Key findings
The new bone adhesive was found to be stronger than traditional metal fixation from 12 weeks through 2 years after surgery.
The bone glue promoted faster healing and better integration of the bone.
There were no complications or tissue damage associated with the use of the resorbable adhesive.
Frequently asked questions
Does Dr. Woodard study brain surgery techniques?
Yes, Dr. Woodard focuses on improving techniques used in brain surgeries, particularly through the use of innovative materials.
What materials has Dr. Woodard researched for cranial surgeries?
Dr. Woodard has researched a mineral-based resorbable bone adhesive as an alternative to traditional metal fixation.
Is Dr. Woodard's work relevant to patients needing skull surgeries?
Yes, their research is directly relevant as it explores safer surgical options that could lead to better recovery outcomes for patients undergoing skull surgery.
Publications in plain English
Demonstration of the safety of a regenerative bone adhesive for cranial flap fixation in a 12-week clinically relevant sheep model.
2026
Journal of neurosurgery
Smith TR, Lazor JB, Slotkin JR, Woodard EJ, Boruah S +4 more
Plain English This study looked at how a new type of bone adhesive, called TTCP-PS, compares to traditional titanium plates and screws (TPS) for fixing skull flaps in sheep. Researchers found that the adhesive did not cause any more harm to the underlying brain tissue than the standard method, with both methods showing minimal tissue changes. This is important because it suggests that TTCP-PS can be a safe alternative to TPS for fixing skulls, possibly reducing complications associated with metal hardware.
Who this helps: Patients undergoing cranial surgery.
Cranial flap fixation in sheep using a resorbable bone adhesive.
2021
Journal of neurosurgery
Foley KT, Woodard EJ, Slotkin JR, Mayotte CK, Baldwin AC +2 more
Plain English Researchers tested a new bone glue made from minerals to hold skull bone flaps in place after brain surgery, comparing it to the standard metal plates and screws currently used. In sheep, the new adhesive was stronger than metal fixation from 12 weeks through 2 years after surgery, healed bone faster with better integration, and caused no tissue damage or complications. This bone glue could be a better option for human skull surgery because it's stronger, dissolves naturally over time as new bone grows in, and avoids the problems that can happen when metal hardware shifts or loosens.
Geographic variations in clinical presentation and outcomes of decompressive surgery in patients with symptomatic degenerative cervical myelopathy: analysis of a prospective, international multicenter cohort study of 757 patients.
2018
The spine journal : official journal of the North American Spine Society
Fehlings MG, Kopjar B, Ibrahim A, Tetreault LA, Arnold PM +24 more
Plain English This study looked at how patients with degenerative cervical myelopathy (DCM)—a serious spine condition—are treated and how they recover in different parts of the world, analyzing data from 757 patients. It found that patients in Europe and North America were generally older, while those in Latin America had symptoms for longer before surgery. After 24 months, patients from North America and Asia Pacific had the best improvements in their condition, while patients from Europe experienced the highest rate of complications (34.9%).
Who this helps: This helps patients with DCM, as well as doctors by highlighting the need for improved treatment strategies based on geographic differences.
Biodegradable scaffolds promote tissue remodeling and functional improvement in non-human primates with acute spinal cord injury.
2017
Biomaterials
Slotkin JR, Pritchard CD, Luque B, Ye J, Layer RT +9 more
Plain English Researchers studied how biodegradable scaffolds can help recover movement after spinal cord injuries in monkeys. They found that monkeys with complete spinal cord injuries who received these scaffolds showed significant improvement in their ability to walk after twelve weeks compared to those that didn't receive the scaffolds. This matters because it suggests that these scaffolds could promote healing and functional recovery in spinal cord injuries, which may eventually benefit human patients.
Who this helps: This helps patients with spinal cord injuries.
Sustained Local Release of Methylprednisolone From a Thiol-Acrylate Poly(Ethylene Glycol) Hydrogel for Treating Chronic Compressive Radicular Pain.
2016
Spine
Slotkin JR, Ness JK, Snyder KM, Skiles AA, Woodard EJ +6 more
Plain English This study looked at a new way to deliver a common steroid, methylprednisolone, using a special gel to treat chronic nerve pain in rats. The researchers found that this gel significantly reduced pain sensitivity and improved walking patterns compared to standard steroid injections alone, and it also lowered inflammation in the nerves. This matters because it could help provide longer-lasting relief for millions of people suffering from chronic nerve pain.
Who this helps: Patients with chronic nerve pain.
Mild diabetes is not a contraindication for surgical decompression in cervical spondylotic myelopathy: results of the AOSpine North America multicenter prospective study (CSM).
2014
The spine journal : official journal of the North American Spine Society
Arnold PM, Fehlings MG, Kopjar B, Yoon ST, Massicotte EM +12 more
Plain English This study looked at how diabetes affects the outcomes of surgery for a spine condition called cervical spondylotic myelopathy (CSM). Researchers found that while diabetic patients started with slightly worse symptoms, they improved significantly after surgery, just like non-diabetic patients. The only area where diabetic patients didn’t do as well was in physical functioning after surgery, but overall, the surgery was effective for everyone.
Who this helps: This information benefits patients with diabetes who need spinal surgery and their doctors.
Efficacy and safety of surgical decompression in patients with cervical spondylotic myelopathy: results of the AOSpine North America prospective multi-center study.
2013
The Journal of bone and joint surgery. American volume
Fehlings MG, Wilson JR, Kopjar B, Yoon ST, Arnold PM +13 more
Plain English This study looked at how effective and safe surgery is for patients with cervical spondylotic myelopathy, a condition that affects the spinal cord. Out of 278 patients, 85 had mild symptoms, 110 had moderate, and 83 had severe symptoms. After one year, patients showed significant improvements in their ability to function and quality of life, with 85% of them reporting better outcomes, while complications occurred in 18.7% of cases, similar to other studies.
Who this helps: This benefits patients suffering from cervical spondylotic myelopathy and their doctors.
Perioperative and delayed complications associated with the surgical treatment of cervical spondylotic myelopathy based on 302 patients from the AOSpine North America Cervical Spondylotic Myelopathy Study.
2012
Journal of neurosurgery. Spine
Fehlings MG, Smith JS, Kopjar B, Arnold PM, Yoon ST +12 more
Plain English This study looked at the complications that can occur after surgery for cervical spondylotic myelopathy (CSM) by analyzing data from 302 patients. They found that 15.6% of patients experienced complications within 30 days of surgery, with issues like minor breathing problems and difficulty swallowing being common. Additionally, 4.4% had complications from 31 days to 2 years after surgery, and older age and longer surgery times increased the risks of these complications.
Who this helps: This research benefits patients undergoing surgery for CSM and their doctors by providing clearer expectations about potential risks.
An injectable thiol-acrylate poly(ethylene glycol) hydrogel for sustained release of methylprednisolone sodium succinate.
2011
Biomaterials
Pritchard CD, O'Shea TM, Siegwart DJ, Calo E, Anderson DG +5 more
Plain English This study created a new type of injectable gel that can slowly release a steroid medication called methylprednisolone. The gel works well in the body, swelling less than traditional gels and making it easier to use in surgeries. It releases the medication at a steady rate, with an effective concentration of 2 mg/mL, and has mechanical properties similar to soft human tissue, making it a strong candidate for useful medical applications.
Who this helps: Patients needing targeted medication delivery during surgical procedures.
Establishing a model spinal cord injury in the African green monkey for the preclinical evaluation of biodegradable polymer scaffolds seeded with human neural stem cells.
2010
Journal of neuroscience methods
Pritchard CD, Slotkin JR, Yu D, Dai H, Lawrence MS +5 more
Plain English This study investigated a model of spinal cord injury in African green monkeys to test new treatment options. The researchers created a specific type of spinal cord injury and treated four monkeys with either a scaffold, a scaffold with human neural stem cells, or no treatment. They found that all monkeys showed signs of paralysis and sensory loss, but the study's methods allow for detailed evaluation of potential treatments over time, which could lead to better therapies for people with spinal cord injuries.
Who this helps: This helps patients with spinal cord injuries and the doctors treating them.
Blockade of peroxynitrite-induced neural stem cell death in the acutely injured spinal cord by drug-releasing polymer.
2009
Stem cells (Dayton, Ohio)
Yu D, Neeley WL, Pritchard CD, Slotkin JR, Woodard EJ +2 more
Plain English This study looked at why neural stem cells (NSCs) often die quickly after being transplanted into the injured spinal cord. Researchers found that a harmful molecule called peroxynitrite was involved in killing these donor cells; specifically, it was shown to trigger cell death in lab tests and in rats. They discovered that using a special polymer to block peroxynitrite significantly protected the stem cells from dying after spinal cord injuries, which could improve the effectiveness of cell transplants in future treatments.
Who this helps: This helps patients with spinal cord injuries who may benefit from improved stem cell therapies.
A comparison of long-term outcomes of translaminar facet screw fixation and pedicle screw fixation: a prospective study.
2007
Journal of neurosurgery. Spine
Tuli J, Tuli S, Eichler ME, Woodard EJ
Plain English This study looked at two surgical methods, translaminar facet screw fixation (TFSF) and pedicle screw fixation (PSF), for treating lower back problems. Out of 77 patients, 32.5% who had TFSF needed another surgery compared to 27% of those who had PSF, with TFSF patients generally requiring a reoperation sooner (about 3 years) than PSF patients (around 4.3 years). The findings show that TFSF might lead to more complications requiring additional surgeries, which is important for guiding treatment choices.
Who this helps: This helps patients undergoing surgery for lower back issues.
Pedicle and spinal canal parameters of the lower thoracic and lumbar vertebrae in the achondroplast population.
2007
Spine
Srikumaran U, Woodard EJ, Leet AI, Rigamonti D, Sponseller PD +1 more
Plain English This study looked at the shape and size of vertebrae in the lower back of adults with achondroplasia, a form of dwarfism. Researchers measured different parameters from CT scans of 19 patients and found that vertebrae in this group have shorter and differently angled pedicles compared to those in people without this condition. These findings are important because they can help improve the way doctors select and place screws used in spinal surgery, making the procedures safer and more effective.
Who this helps: Patients with achondroplasia undergoing spinal surgery.
Respiratory abnormalities resulting from midcervical spinal cord injury and their reversal by serotonin 1A agonists in conscious rats.
2005
The Journal of neuroscience : the official journal of the Society for Neuroscience
Choi H, Liao WL, Newton KM, Onario RC, King AM +6 more
Plain English This study looked at how spinal cord injuries in rats affect their breathing and tested a specific medication to see if it could help. The researchers found that after a spinal cord injury, the rats showed significant breathing issues, but after treatment with a serotonin receptor drug, their breathing improved by about 39% after two to four weeks. This matters because it suggests that similar medications could be used to treat breathing problems in people who have had spinal cord injuries.
Who this helps: This helps patients with spinal cord injuries who experience breathing difficulties.
Comparison of perioperative morbidity in translaminar facet versus pedicle screw fixation.
2005
Orthopedics
Tuli SK, Eichler ME, Woodard EJ
Plain English This study looked at two types of spinal surgery techniques used to stabilize the lower back—translaminar facet screw fixation and pedicle screw fixation. The researchers found that patients who had the translaminar method experienced fewer complications during and after surgery compared to those who had the pedicle method. Specifically, this approach resulted in less overall surgical risk, indicating it might be a safer option for patients needing spinal fusion.
Who this helps: This benefits patients undergoing spinal fusion surgeries.
Occipitocondylar hyperplasia: an unusual craniovertebral junction anomaly causing myelopathy. Case report.
2005
Journal of neurosurgery
Ohaegbulam C, Woodard EJ, Proctor M
Plain English This report describes a rare problem in a 10-year-old girl where extra bone growth at the base of her skull pressed against her spinal cord, leading to neck issues. The doctors performed a successful surgery to relieve the pressure without any complications. Understanding this unusual condition is important because it can help identify similar issues in other patients.
Who this helps: This helps doctors and patients who experience neck and spinal cord problems.
Minocycline inhibits contusion-triggered mitochondrial cytochrome c release and mitigates functional deficits after spinal cord injury.
2004
Proceedings of the National Academy of Sciences of the United States of America
Teng YD, Choi H, Onario RC, Zhu S, Desilets FC +5 more
Plain English Researchers studied how a drug called minocycline could help treat acute spinal cord injuries (SCI) by preventing the release of a protein that contributes to nerve damage. They found that after an injury, this protein peaks in the spinal cord 4 to 8 hours later, and giving minocycline shortly after the injury significantly reduced the amount of the protein and improved movement in rats, showing better long-term recovery of leg function. This is important because it suggests that targeting this protein release can help protect spinal cord tissues and improve the chances of recovery after such injuries.
Who this helps: This helps patients with spinal cord injuries.
Reliability of radiologic assessment of fusion: cervical fibular allograft model.
2004
Spine
Tuli SK, Chen P, Eichler ME, Woodard EJ
Plain English This study looked at how reliable regular X-rays are in determining whether a cervical spine fusion surgery was successful. The researchers found that the agreement between two experts evaluating the X-rays varied, with a reliability score of 0.61 at 6 weeks, dropping to 0.18 by 12 weeks, indicating that X-rays are not very trustworthy for this purpose. This matters because if doctors can't accurately assess fusion through X-rays, patients might receive inappropriate treatments.
Who this helps: Patients undergoing cervical spine fusion surgery.
Plain English This study looked at how long it takes for patients to achieve spinal fusion after surgery for neck problems. Researchers found that the median time to fusion was about 88 days for the upper part of the graft and 85 days for the lower part, with overall fusion rates at 92% and 93% within two years. This information is important because it provides a clearer picture of recovery times and helps both patients and doctors understand what to expect after surgery.
Who this helps: This helps patients undergoing spinal fusion surgery and their healthcare providers.
Initial experience with intraoperative magnetic resonance imaging in spine surgery.
2001
Spine
Woodard EJ, Leon SP, Moriarty TM, Quinones A, Zamani AA +1 more
Plain English This study looked at 12 patients who had spine surgery using a special tool called an intraoperative magnetic resonance imager (IMRI). The researchers found that the IMRI allowed for quick and accurate imaging during surgery, successfully checking that decompression was adequate in 10 out of 12 cases. This matters because it helps surgeons make real-time decisions and reduces the chance of errors, leading to better outcomes for patients.
Who this helps: This helps patients undergoing spine surgery.
Development and implementation of intraoperative magnetic resonance imaging and its neurosurgical applications.
1997
Neurosurgery
Black PM, Moriarty T, Alexander E, Stieg P, Woodard EJ +5 more
Plain English This study introduces a new type of MRI system that can be used while performing brain surgery. Researchers conducted 140 surgeries using this technology, including various procedures like biopsies and tumor removals. They found that this system provides clear images of the brain during surgery, helping surgeons avoid errors, accurately locate tumors, and assess their progress immediately, ultimately improving patient outcomes.
Who this helps: This benefits patients undergoing brain surgery by enhancing the precision and safety of their procedures.
Effects of substrate concentration on results of determination of prostatic acid phosphatase with thymolphthalein monophosphate.
1983
Clinical chemistry
Kessner A, Woodard EJ, Bowers GN
Plain English This study looked at how different amounts of a chemical called thymolphthalein monophosphate affect the measurement of prostatic acid phosphatase, an enzyme linked to prostate health. Researchers found that variations in the purity of the chemical can lead to inaccurate results in tests, particularly when the concentration is between 1.5 and 2.5 grams per liter. By developing a new method to test different batches of this chemical, they aim to improve the reliability of these important tests.
Who this helps: This benefits doctors and patients needing accurate prostate health assessments.
Uptake and retention of sex steroids by the neonatal rat adrenal gland.
1982
Biology of the neonate
Simmons JE, Bronsky PT, Woodard EJ
Plain English This study looked at how neonatal rats’ adrenal glands absorb and retain sex hormones like testosterone and estrogen shortly after they are injected with these hormones. The researchers found that both male and female rats’ adrenal glands collected more radioactivity from testosterone than from the blood, indicating that the glands take up the hormone. However, they found little absorption of estrogen in the glands, potentially due to a protein that prevents it from being retained.
Who this helps: This helps researchers and doctors understand hormone effects in newborns better, potentially influencing treatments for hormonal imbalances.
Eric J Woodard Jonathan R Slotkin Marc E Eichler Michael G Fehlings Branko Kopjar Paul M Arnold Alexander R Vaccaro Darrel S Brodke Christopher I Shaffrey Rick C Sasso
Physician data sourced from the
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Publication data from
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Plain-English summaries generated by AI.
Not medical advice.