Dr. Butler studies different medical complexities associated with spinal surgery and patient care related to spinal health. He explores topics like the complications following surgeries, the best approaches for treating spinal cord injuries, the utilization of new technologies in surgery, and the impact of gut health on bone density. His research also delves into conditions affecting specific populations, such as the increased risk of spinal issues in patients with haemophilia and the effectiveness of the HPV vaccine in preventing throat cancer.
Key findings
In a study on lumbar spine surgery, 50% of patients experienced superior facet joint violation, but it did not lead to significant long-term issues like disc height loss or the need for reoperation.
Surgeons reported spending 88.5% of flap-raise time in poor neck posture, and over half experienced neck pain affecting their quality of life.
For older patients with spinal cord injuries, delaying surgery by 72 hours improved recovery and reduced complications compared to surgery within 24 hours.
In a meta-analysis of robotic-assisted spine surgeries, surgery time decreased from 212 minutes to under 97 minutes as experience increased, requiring about 136 cases for proficiency.
The HPV vaccine reduced oral HPV infections, which can help prevent oropharyngeal cancer, illustrating a key prevention strategy against these cancers.
Frequently asked questions
Does Dr. Butler study complications from spinal surgery?
Yes, he researches complications such as superior facet joint violation after lumbar spine surgery.
What treatments has Dr. Butler researched?
He has studied various treatments, including duraplasty for spinal cord injuries and the use of bioabsorbable implants in orthopedic surgeries.
Is Dr. Butler's work relevant to patients with osteoporosis?
Yes, he investigates how gut bacteria influence bone health, which is particularly important for osteoporosis patients.
What innovations in surgery has Dr. Butler examined?
He has explored robotic-assisted technology for spine surgery and the effectiveness of the exoscope as an alternative to traditional microscopes.
How does Dr. Butler's research impact patients with spinal injuries?
His findings can help healthcare providers determine the best timing for surgery and improve surgical techniques, enhancing recovery outcomes.
Publications in plain English
The learning curve of robotic assisted pedicle screw placement: individual patient data meta-analysis.
2026
The spine journal : official journal of the North American Spine Society
McNamee C, Kelly D, McDonnell JM, Sowa AM, Menon A +2 more
Plain English This research studied how long it takes surgeons to become proficient in using robotic technology for placing screws in the spine, focusing on factors like surgery time, accuracy, blood loss, and complications. They found that the average surgery time improved from about 212 minutes to under 97 minutes as surgeons gained experience, but the learning process took roughly 136 cases for most surgeons to reach a steady level of performance. This is important because understanding the learning curve helps ensure that surgeries are done safely and effectively, ultimately impacting patient outcomes.
Who this helps: This helps patients undergoing spine surgery, as well as the surgeons who perform these procedures.
Traumatic Cervical Spinal Cord Injuries: Is There a Clinical Benefit of Added Duroplasty Alongside Bony Decompression?
2026
Clinical spine surgery
Pim J, McDonnell JM, Darwish S, Butler JS
Plain English This study looked at whether adding a surgical procedure called duraplasty, which expands the protective covering around the spinal cord, provides any benefits alongside the standard treatment for traumatic cervical spinal cord injuries. The researchers found that while duraplasty might help by improving fluid flow and reducing damage to nerve cells, it also carries risks like infections and leaks. Understanding the balance between these potential benefits and risks is crucial because it can influence treatment decisions for patients with severe spinal injuries.
Who this helps: This helps patients suffering from traumatic spinal cord injuries and their doctors in deciding the best treatment options.
Ergonomic burden in microsurgery: Real-time quantification of cervical posture using biosensor technology.
2026
Journal of plastic, reconstructive & aesthetic surgery : JPRAS
Phoenix E, Canavan C, Kelly L, O'Reilly K, Carolan D +5 more
Plain English This study looked at the neck posture and pain experienced by reconstructive microsurgeons while they perform surgery. Researchers found that during a specific part of the surgery called flap-raise, surgeons spent 88.5% of the time with their necks bent over at an angle greater than 30 degrees, which is considered poor posture. Additionally, over half of the surgeons reported having neck pain in the past year, which affected their sleep and ability to relax.
Who this helps: This helps microsurgeons by identifying ergonomic issues that could lead to pain and fatigue.
Adjacent segment degeneration after superior facet joint violation of the lumbar spine.
2026
North American Spine Society journal
McNamee C, Magee B, Storey RN, McDonnell JM, Darwish S +1 more
Plain English This study looked at whether a complication called superior facet joint violation (FJV) after surgery on the lumbar spine increases the risk of problems in the nearby spinal segments or the need for additional surgery. Researchers analyzed data from 71 patients, finding that nearly half had some level of FJV, but this was not linked to significant issues like disc height loss or the necessity for reoperation. This is important because it suggests that having FJV may not affect long-term recovery and outcomes after lumbar spine surgery.
Who this helps: Patients undergoing lumbar spine surgery.
Mechanical Vertebral Body Augmentation Versus Conventional Balloon Kyphoplasty for Osteoporotic Thoracolumbar Compression Fractures: A Systematic Review and Meta-Analysis of Outcomes.
2025
Global spine journal
Macciacchera M, McDonnell JM, Amir A, Sowa A, Cunniffe G +3 more
Plain English This study compared two treatments for osteoporotic spinal fractures: a new method called mechanical vertebral body augmentation (MPVA) and the traditional balloon kyphoplasty. Researchers analyzed data from six trials involving 1,024 patients and found that while both methods worked similarly well in restoring spine height and had similar complication rates, MPVA patients had slightly lower rates of new fractures and better pain relief at six months. However, there was no significant overall improvement with MPVA compared to kyphoplasty, indicating that more research is needed to confirm its benefits.
Who this helps: This information benefits doctors and patients considering treatment options for spinal fractures.
Cohn DM, Gurugama P, Magerl M, Katelaris CH, Launay D +12 more
Plain English This study looked at a new gene-editing treatment called NTLA-2002 for people with hereditary angioedema, a condition that causes sudden and severe swelling. The researchers found that patients who received NTLA-2002 had about 75-77% fewer swelling attacks each month compared to those who received a placebo, and many experienced no attacks at all during the study period. This is significant because it offers a potential long-term solution for managing a challenging and painful condition.
Who this helps: This helps patients suffering from hereditary angioedema.
The impact of direct consultant-to-consultant referrals on the spinal care pathway: A clinical audit.
2025
The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
Barve A, McCarroll P, Clesham K, Marland H, McDonnell JM +6 more
Plain English This study looked at how changing the referral process for spinal care at a major hospital affected patient outcomes. After switching to a direct consultant-to-consultant system, the number of referrals dropped by 31.2%, while the percentage of patients with complete imaging improved from 67.3% to 81.6%, and surgical treatment rates increased from 33.3% to 40.4%. This matters because it shows that direct referrals can lead to better preparation and care for patients, making the process more efficient.
Who this helps: This benefits patients with spinal issues by streamlining their care.
The Current Landscape for Human Papillomavirus Vaccination in Oropharyngeal Carcinoma.
2025
Cancer journal (Sudbury, Mass.)
Kumar N, Butler JS, Vashisht J
Plain English This study looked at how the HPV vaccine can help prevent oropharyngeal cancer, which is a type of throat cancer linked to the human papillomavirus (HPV). Researchers found that vaccination can reduce oral HPV infections, and the FDA has approved the Gardasil vaccine for use in preventing HPV-related cancers in both men and women. This is important because increasing rates of these cancers highlight the need for effective prevention methods.
Who this helps: This benefits patients at risk of HPV-related head and neck cancers and healthcare providers who can offer better prevention tools.
The Role of Adipokines in Spinal Disease: A Narrative Review.
2025
JOR spine
McDonnell JM, Darwish S, Butler JS, Buckley CT
Plain English This study looked at how certain chemicals produced by fat cells, known as adipokines, might impact diseases related to the spine. Researchers found that these adipokines can affect the health of spinal structures, influencing issues such as bone health and muscle function. While results showed that adipokines are involved in spinal problems, more research is needed to understand how they might be used to help treat or diagnose spinal diseases.
Who this helps: Patients with spinal conditions.
Microbiome dysbiosis in spinal pathology: Mechanisms, evidence, and research limitations.
2025
Brain & spine
Rashid M, Pereira HS, Alissa A, Keraidi S, Wipf N +4 more
Plain English This study examined how the bacteria in our bodies (the microbiome) affect spinal health, particularly in conditions like ankylosing spondylitis. Researchers found that an imbalance in certain bacteria can lead to immune system issues, making patients more prone to autoimmune diseases affecting the spine. This is important because understanding this connection can help improve treatments for patients with spinal problems.
Who this helps: This helps patients with spinal conditions and their doctors by offering new insights for better treatment options.
Bioabsorbable implants are a viable alternative to traditional metallic implants in orthopaedic surgery: a systematic review and meta-analysis.
2025
Journal of orthopaedics
Blackman B, Okunbor S, Sowa AM, McDonnell JM, Ross TD +3 more
Plain English This study compared bioabsorbable implants to traditional metallic implants used in orthopedic surgery to see how well they work and what complications arise. Researchers looked at data from 27 trials involving 1,437 patients and found that bioabsorbable implants had a 15.5% complication rate, while metallic implants had a rate of 13.3%, which means they are similar overall. However, newer bioabsorbable materials showed lower complication rates, and patients with these implants had significantly fewer surgical site infections.
Who this helps: This helps patients undergoing orthopedic surgeries by providing options that may reduce infection risk and complications.
Spinal Stenosis: An Emerging Complication of Ageing in People With Haemophilia.
2025
Haemophilia : the official journal of the World Federation of Hemophilia
Kelly C, McGowan M, Larkin N, Mc Donnell JM, Hilshof AM +15 more
Plain English This study looked at older men with haemophilia to see how common spinal stenosis, a narrowing of the spinal canal that can cause pain, is among them. It found that 13% of the 100 men studied had spinal stenosis confirmed by imaging, which is significantly higher than the 4% found in the general population over 60 years old. This matters because it highlights that older people with haemophilia are at a greater risk for this condition than previously understood, and current joint health assessments are not capturing this issue.
Who this helps: Patients with haemophilia and their healthcare providers.
Superior facet joint violation after lumbar pedicle screw placement: a scoping review of prevalence, biomechanics, and implications for adjacent segment disease.
2025
Asian spine journal
McNamee C, McDonnell JM, Kelly D, Marland H, Darwish S +1 more
Plain English This study looked at a problem called facet joint violation (FJV) that can happen when placing screws in the lower back during surgery. Researchers found that FJV occurred in about 4.79% of cases with robotic assistance and up to 19.45% with freehand techniques, meaning some methods are safer than others. Understanding FJV is important because it might affect the healing of the spine and could lead to issues in nearby segments, though more research is needed to clarify this connection.
Who this helps: This information benefits patients undergoing lumbar fusion surgery and the doctors who perform these procedures.
Comparison of surgical exoscope versus operating microscope in spine surgery: A Surgeon's perspective.
2025
Brain & spine
Du Preez C, McDonnell JM, Sowa AM, Synnott K, Timlin M +3 more
Plain English This study looked at a new tool called the exoscope, which can help doctors see better during spine surgery, compared to the traditional operating microscope. Surgeons who used the exoscope in 1,517 cases mostly found it as good or better than the microscope in many ways, with 60% noting it provided great learning opportunities. However, the exoscope is expensive, and some surgeons had concerns about its ease of use and comfort, indicating that while it has benefits, more improvements are needed to replace the microscope completely.
Who this helps: This benefits surgeons and ultimately their patients, as it could improve surgical outcomes.
Exploring osteomicrobiology: A narrative review of the gut-bone axis in osteoporosis.
2025
Irish journal of medical science
Pereira HS, Rashid M, Alissa A, Keraidi S, Wipf N +4 more
Plain English This study looked at how the bacteria in our gut can affect bone health, specifically in people with osteoporosis, a condition that weakens bones and increases the risk of fractures. It found that certain gut bacteria, like Lactobacillus and Bifidobacterium, help the body absorb important minerals for bones, suggesting that a healthy gut could lead to stronger bones. Older men with an H. Pylori infection were also found to have lower bone density in their spines, highlighting the need for further research into the gut's role in bone health.
Who this helps: This information benefits patients with osteoporosis and healthcare providers looking for new ways to improve bone health.
Outcomes of early vs delayed surgical intervention in geriatric patients with cervical spinal fractures and spinal cord injuries.
2025
The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
Marland H, Barve A, McDonnell JM, de Grae MNM, McNamee C +3 more
Plain English This study looked at the best timing for surgery in older patients (aged 65 and up) who had suffered spinal cord injuries. Researchers found that fewer complications occurred and patients had better recovery if surgery was delayed by 72 hours after their injury, compared to those who had surgery within 24 hours. Specifically, surgical delays lowered the need for intensive care; out of the patients who had severe injuries before surgery, those delayed past 72 hours showed more improvement.
Who this helps: This information is beneficial for elderly patients with spinal injuries and their doctors.
A Systems-Approach to Addressing the US Rural Veterinarian Shortage Through Collaborative Problem-Solving Training and Education.
2025
New directions for student leadership
Cline LL, Biggs R, Butler JS, Nichols C
Plain English This study looked at the shortage of veterinarians in rural areas of the U.S. and tested ways to improve the situation by focusing on training in leadership and collaboration. The findings showed that programs like the Integrated Beef Cattle Program at Oklahoma State University significantly help recruit and keep veterinarians in these communities, which is crucial for ensuring food safety and supporting farmers. This matters because having enough veterinarians is vital for animal health and the agricultural economy.
Who this helps: This benefits rural veterinarians and the farmers who rely on their services.
VopX, a novelT3SS effector, modulates host actin dynamics.
2025
mBio
Ulbrich M, Seward CH, Ivanov AI, Ward BM, Butler JS +1 more
Plain English This study looked at a protein called VopX that helps cholera bacteria attach to and invade human cells by changing the structure of those cells. Researchers found that when VopX was present, cells rounded up and adhered better, which helps the bacteria stick around during infection. This is significant because understanding how bacteria manage to colonize our cells can lead to better treatments for cholera and similar diseases.
Who this helps: This helps patients suffering from cholera and healthcare providers looking for effective treatment strategies.
Iliac crest bone graft versus cell-based grafts to augment spinal fusion: a systematic review and meta-analysis.
2024
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Gordon A, Newsome F, Ahern DP, McDonnell JM, Cunniffe G +1 more
Plain English This research compared two methods of helping the spine heal after surgery: using bone from the patient's own hip (iliac crest bone graft) versus using grafts that include special cells. Out of 465 patients examined across ten studies, some showed that cell-based grafts helped the spine heal even better than hip bone grafts, while others found no significant difference in outcomes. This matters because using cell-based grafts could mean fewer complications and less pain for patients recovering from spinal surgery.
Who this helps: Patients undergoing spinal fusion surgery.
The correlation between altmetric score and traditional measures of article impact for studies pertaining to spine trauma.
2024
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Fox ES, McDonnell JM, Kelly A, Cunniffe GM, Darwish S +2 more
Plain English This study examined how social media attention for articles on spine trauma connects with traditional ways of measuring their impact, like citations and author rankings. Researchers found no significant relationships between social media scores (known as Altmetric Attention Score) and traditional metrics, suggesting that social media impact is not reflected in conventional academic measurements. For example, one article about motorcycle injuries received the highest attention score of 687, but this did not correlate with its academic citations. This is important because it shows that social media can highlight important research that might not be recognized through traditional methods.
Who this helps: This helps researchers and healthcare professionals understand the broader impact of their work on social media.
The correlation between altmetric score and traditional measures of article impact for studies published within the Surgeon Journal.
2024
The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
Fox ES, McDonnell JM, Wall J, Darwish S, Healy D +1 more
Plain English This study looked at how online attention, measured by the Altmetric Attention Score (AAS), relates to traditional ways of measuring the impact of research articles published in the Surgeon Journal from 2003 to 2020. It found weak but notable positive correlations: articles with larger sample sizes, more reads, and more citations tended to have higher AAS, although the number of authors and other traditional measures showed no significant relationship. Understanding how these new altmetrics relate to established metrics is important because it helps to capture the broader social impact of research beyond traditional academic measures.
Who this helps: This benefits researchers and medical professionals looking to understand the wider influence of their work.
An Assessment of the World's Contribution to Spine Trauma Care: A Bibliometric Analysis of Classifications and Surgical Management; An AO Spine Knowledge Forum Trauma Initiative.
2024
Global spine journal
Chhabra HS, Phadke V, Manghwani J, El-Sharkawi M, Butler JS +4 more
Plain English This study looked at research on spinal trauma care published between 2011 and 2020 to find out which universities and authors contributed the most. The analysis showed that the top contributors were Thomas Jefferson University in the U.S., the University of Toronto, and the University of British Columbia in Canada, with three authors, Vaccaro AR, Arabi B, and Oner FC, being the most prolific. Understanding who is leading the research helps improve spinal injury treatment, showing significant trends in how fractures are classified and managed, which is important for enhancing patient recovery.
Who this helps: This benefits doctors and researchers focusing on spinal trauma care.
Ability to Process Multisensory Information Is Impaired in Open Angle Glaucoma.
2024
Journal of glaucoma
Loskutova E, Butler JS, Setti A, O'Brien C, Loughman J
Plain English This research studied how well people with open angle glaucoma can process information from multiple senses compared to those without the condition. The findings showed that while both groups performed similarly on straightforward tasks, individuals with glaucoma struggled when faced with conflicting information; specifically, they were more influenced by sounds when trying to count flashes of light, indicating a weakness in combining sensory information. This is important because it suggests that glaucoma can affect not only vision but also overall quality of life and safety, contributing to a higher risk of falls.
Who this helps: This information is beneficial for patients with glaucoma and their doctors.
Accuracy of augmented reality-assisted pedicle screw placement: a systematic review.
2024
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Youssef S, McDonnell JM, Wilson KV, Turley L, Cunniffe G +3 more
Plain English This study looked at how accurate augmented reality technology is when placing screws in the spine during surgery. Researchers reviewed 20 different studies and found that, overall, 93.1% of the 2,095 screws placed using this technology were positioned correctly. This matters because accurate screw placement is crucial to avoid complications during spine surgery.
Who this helps: This benefits patients undergoing spine surgery.
CRISPR-Cas9 In Vivo Gene Editing offor Hereditary Angioedema.
2024
The New England journal of medicine
Longhurst HJ, Lindsay K, Petersen RS, Fijen LM, Gurugama P +18 more
Plain English This study looked at a new gene-editing treatment called NTLA-2002 for people with hereditary angioedema, a condition that causes severe swelling. The researchers tested three different doses (25 mg, 50 mg, and 75 mg) on adults and found that the treatment successfully reduced the number of swelling attacks by 80-97% depending on the dose. Importantly, no serious side effects occurred during the trial, making it a promising option for long-term relief.
Who this helps: This helps patients with hereditary angioedema.
Neural correlates of audiovisual narrative speech perception in children and adults on the autism spectrum: A functional magnetic resonance imaging study.
2024
Autism research : official journal of the International Society for Autism Research
Ross LA, Molholm S, Butler JS, Del Bene VA, Brima T +1 more
Plain English This study looked at how children and adults with autism process speech when they can see the speaker's mouth movements, compared to those without autism. Researchers scanned the brains of 41 autistic individuals and 41 matched non-autistic individuals while they listened to and watched a story. They found that autistic participants had different brain activity in certain areas, showing higher activation in regions typically less active for non-autistic individuals during these tasks, which suggests they process information differently.
Who this helps: This research helps autistic individuals and their caregivers understand how they perceive speech and could guide better communication strategies.
Probing a neural unreliability account of auditory sensory processing atypicalities in Rett Syndrome.
2024
medRxiv : the preprint server for health sciences
Brima T, Beker S, Prinsloo KD, Butler JS, Djukic A +3 more
Plain English This study looked at how the brains of people with Rett Syndrome (RTT) respond to sounds compared to individuals without the condition. Researchers found that the brain responses from people with RTT were much more inconsistent, with a 50% higher variability compared to the control group, indicating that these responses were less reliable. This matters because it suggests that relying on traditional methods to assess brain function in RTT could exaggerate the severity of the condition, leading to potential misinterpretations of treatment effectiveness.
Who this helps: This research benefits doctors and scientists studying Rett Syndrome to better understand and treat the condition.
Probing a neural unreliability account of auditory sensory processing atypicalities in Rett Syndrome.
2024
Research square
Brima T, Beker S, Prinsloo KD, Butler JS, Djukic A +3 more
Plain English This study examined how the brains of people with Rett Syndrome process sounds compared to those without the condition. Researchers recorded brain activity in response to simple tones from both groups and found that individuals with Rett Syndrome showed much higher variability in their responses, meaning their brains were less consistent. Specifically, the study found that responses from Rett participants had a 32% higher variability and lower clarity compared to controls, indicating that previous assessments may have exaggerated the extent of their processing challenges.
Who this helps: This research benefits patients with Rett Syndrome and their healthcare providers by providing more accurate assessments of their brain function.
The efficacy of anchored stand-alone spacers in comparison to conventional cage and plate in anterior cervical discectomy and fusion surgery: A meta-analysis of randomised controlled trials for clinical and radiological outcomes.
2024
Brain & spine
McDonnell JM, Youssef S, Ross TD, Marland H, Turley L +3 more
Plain English This study compared two methods used in cervical spine surgery: stand-alone spacers and traditional cage and plate systems. The researchers analyzed data from 10 trials with a total of 779 patients and found that stand-alone spacers led to significantly less blood loss, fewer postoperative complications, and lower rates of swallowing difficulties. This matters because it suggests that stand-alone spacers could improve recovery and outcomes for patients undergoing this common surgery.
Who this helps: Patients undergoing anterior cervical discectomy and fusion surgery.
Comparative surgical outcomes of navigated vs non-navigated posterior spinal fusions in ankylosing spondylitis patients.
2024
The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
Marland H, McDonnell JM, Hughes L, Morrison C, Wilson KV +4 more
Plain English This study examined the surgical outcomes of two different techniques used during spinal fusion surgeries for patients with ankylosing spondylitis (AS) who had suffered a spinal fracture. Out of 37 patients, nearly 78% underwent surgery with 48.3% using a navigation system. The results showed that there were no significant differences between the two techniques in areas like the number of vertebrae fused, surgery length, recovery time, or complication rates, indicating that using navigation does not offer clear advantages over traditional methods.
Who this helps: This benefits both surgeons and patients with ankylosing spondylitis facing spinal surgery.
Biomechanical and ergonomic risks associated with cervical musculoskeletal dysfunction amongst surgeons: A systematic review.
2024
The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
O'Reilly K, McDonnell JM, Ibrahim S, Butler JS, Martin-Smith JD +2 more
Plain English This research paper looked at how surgeons develop neck and shoulder pain due to the way they work, particularly from poor posture and repetitive movements. It found that between 10% and 74.4% of surgeons experience these issues. The study identified specific risk factors like using magnifying glasses (loupes) and bending their necks too much while working, but the authors noted that there's not enough high-quality research to provide clear solutions or recommendations for better practices.
Who this helps: This information is useful for surgeons and their employers to understand and manage neck pain risks better.
Probing a neural unreliability account of auditory sensory processing atypicalities in Rett Syndrome.
2024
Journal of neurodevelopmental disorders
Brima T, Beker S, Prinsloo KD, Butler JS, Djukic A +3 more
Plain English This study examined how the brain processes sounds in people with Rett Syndrome (RTT) compared to those without the condition. Researchers looked at brain responses to simple tones and found that participants with RTT showed much more variability in their responses, meaning their brains weren't responding consistently. Specifically, they found that RTT participants had significantly higher variability and lower signal quality in their brain responses than the control group, which suggests that previous assessments may have overestimated the severity of auditory processing problems in RTT.
Who this helps: This research benefits patients with Rett Syndrome and their caregivers by improving the accuracy of assessments related to their auditory processing abilities.
Learning curve analyses in spine surgery: a systematic simulation-based critique of methodologies.
2024
The spine journal : official journal of the North American Spine Society
McNamee C, Keraidi S, McDonnell J, Kelly A, Wall J +2 more
Plain English This study looked at different methods for tracking how spine surgeons improve their skills over time, focusing on 113 research articles published between 2010 and 2023. It found that while some techniques, like breaking down the number of surgeries performed into groups, are simple, they have significant drawbacks. The best approach identified was the CUSUM analysis, which, when done correctly, gives the most accurate picture of a surgeon's learning curve, highlighting the need for more consistent research methods in the future.
Who this helps: This helps surgeons and medical researchers understand how to better evaluate surgical training and performance improvement.
Investigation of factors that may affect the foveal avascular zone: An optical coherence tomography angiography study.
2024
Optometry and vision science : official publication of the American Academy of Optometry
Scanlon G, O'Shea S, Amarandei G, Butler JS, O'Dwyer V
Plain English This study looked at how factors like body weight and blood flow in the eye might affect the foveal avascular zone (FAZ), an area in the retina that can indicate eye health. Researchers found that the average FAZ area was 0.23 mm², and females had a significantly larger FAZ than males. They discovered that greater body fat, reduced blood flow, and thinner central retina layers were linked to a larger FAZ, which could help identify people at risk of eye diseases like diabetic retinopathy and glaucoma.
Who this helps: This research benefits eye doctors and patients by providing insights for early detection of retinal issues.
Outcomes following spinal instrumented fusions in patients with parkinson's disease: a systematic review and meta-analysis.
2024
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Alissa AI, McDonnell JM, Ross TD, Wu N, Sowa A +3 more
Plain English This study looked at the outcomes of spinal surgery in patients with Parkinson's Disease (PD) compared to those without the disease. It found that patients with PD had more complications after surgery, such as surgical site infections and a higher likelihood of needing additional surgeries. Specifically, 14,701 PD patients were analyzed, and they experienced about 40% more surgical complications than those without PD, highlighting the importance of tailored care for these patients.
Who this helps: This information benefits patients with Parkinson's Disease and their healthcare providers.
Retrospective case series of vertebral artery injuries associated with cervical spine trauma.
2024
The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
Morris L, Lawless A, McDonnell JM, Wilson KV, Marland H +2 more
Plain English This study looked at injuries to the vertebral artery that happen when someone suffers trauma to their neck or spine. Out of over 1,000 patients examined, only 14 had confirmed vertebral artery injuries, which is about 1.9%. Although these injuries were rare, they had serious consequences, with a 14% risk of dying within three months of the injury. This finding is important because it highlights the need for coordinated care among medical teams to improve outcomes for these patients.
Who this helps: This helps patients who experience cervical spine trauma and their healthcare providers.
In silico modeling the potential clinical effect of growth factor treatment on the metabolism of human nucleus pulposus cells.
2024
JOR spine
McDonnell EE, Ní Néill T, Wilson N, Darwish SL, Butler JS +1 more
Plain English Researchers studied how different doses of a growth factor called GDF-5 could help human cells in spinal discs regenerate and reduce inflammation. They found that lower doses of GDF-5 (0.25 mg and 1 mg) seemed to improve cell function, while a higher dose (2 mg) increased oxygen usage without greatly affecting nutrient availability. The findings indicate that growth factors like GDF-5 could lead to better spinal health treatments, although patient responses can vary and more research is needed to find the best use for these therapies.
Who this helps: This helps patients with back pain and doctors looking for effective treatments for spinal issues.
Isolated C1 arch fractures: C1-2 fusion vs. C1 osteosynthesis - surgical strategies for potentially unstable injuries.
2024
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Denton H, McDonnell JM, Curran J, Wilson K, Temperley H +4 more
Plain English This study looked at two surgical methods for fixing injuries to the C1 vertebra in the neck, particularly in cases where the transverse atlantal ligament may also be injured. Researchers analyzed ten previous studies and found that a method called C1 osteosynthesis had high success rates in healing fractures, with fewer complications and good results in terms of correcting deformities and preserving neck movement compared to older techniques. This matters because it offers a safer and effective option for treating serious neck injuries, which can help improve patients' recovery and quality of life.
Who this helps: Patients with C1 vertebra fractures and their doctors.
The potential role of synthetic computed tomography in spinal surgery: generation, applications, and implications for future clinical practice.
2024
Asian spine journal
Sankar S, McDonnell JM, Darwish S, Butler JS
Plain English This study looked at synthetic computed tomography (sCT), which creates CT-like images from MRI scans to help with spinal surgery while reducing radiation exposure. The research found that sCT can accurately visualize important features of the spine and could enhance diagnostics and treatment planning, especially in conditions affecting the spine. While it shows promise in various medical fields, challenges still exist, particularly for more complicated spinal structures.
Who this helps: Patients undergoing spinal surgery and their doctors.
Signatures of time interval reproduction in the human electroencephalogram (EEG).
2024
Imaging neuroscience (Cambridge, Mass.)
McCone H, Butler JS, O'Connell RG
Plain English This study looked at how the brain tracks time while people perform tasks that require timing, like playing music. Researchers used EEG to measure brain activity and found that certain signals related to motor preparation (mu/beta waves) and a signal known as the Contingent Negative Variation (CNV) are important for timing responses. Specifically, faster responses were linked to higher CNV amplitudes, showing a clear pattern in how our brains prepare to act based on timing, which could help improve our understanding of timing in various activities.
Who this helps: This helps researchers and clinicians working with patients who have timing or motor control issues.
Morbidity and mortality of traumatic cervical spinal cord injuries in a geriatric cohort.
2023
Irish journal of medical science
Wilson KV, McDonnell JM, O'Malley S, Lynch D, Larouche J +4 more
Plain English This study looked at older patients aged 65 and up who suffered traumatic injuries to their cervical spine, which is the area of the neck. Researchers found that patients with complete spinal cord injuries had significantly worse outcomes than those with less severe injuries; for example, they stayed in the hospital for an average of 57.6 days compared to 21.6 days for those with incomplete injuries, and 37.5% of them died within 90 days compared to just 5.9% of those with less severe injuries. Understanding these differences is crucial for doctors to develop better treatment plans for older patients and improve their chances of recovery.
Who this helps: This research benefits older patients with spinal cord injuries and their healthcare providers.
The Incidence, Characteristics and Outcomes of Vertebral Artery Injury Associated with Cervical Spine Trauma: A Systematic Review.
2023
Global spine journal
Temperley HC, McDonnell JM, O'Sullivan NJ, Waters C, Cunniffe G +2 more
Plain English This study looked at how often people suffer injuries to the vertebral artery (VAI) when they have neck bone fractures and how these injuries are diagnosed and treated. Researchers analyzed data from 24 studies involving nearly 49,000 patients and found that about 5.2% had VAI, with a significant portion suffering serious complications, including a hospital mortality rate of 14.2%. Understanding these injuries is crucial because they can be life-threatening, and improving diagnosis and treatment could help save lives.
Who this helps: This benefits patients who suffer from neck injuries and their doctors, who need better ways to identify and treat these dangerous injuries.
Preclinical to clinical translation for intervertebral disc repair: Effects of species-specific scale, metabolism, and matrix synthesis rates on cell-based regeneration.
2023
JOR spine
McDonnell EE, Wilson N, Barcellona MN, Ní Néill T, Bagnall J +5 more
Plain English This study looked at how well cell-based therapies for repairing damaged intervertebral discs (the cushioning discs in our spine) from animals translate to humans. Researchers compared cells from rats, goats, and humans to understand how their size, health, and ability to grow affect healing. They found that while smaller animals might not face significant nutritional challenges when healing, the right amount of cells is crucial for effective repair in humans without causing additional issues, which has implications for how future treatments are developed.
Who this helps: This helps patients suffering from disc degeneration and the doctors treating them.
Biomimetic Inspired Hydrogels for Regenerative Vertebral Body Stenting.
2023
Current osteoporosis reports
Kaur K, Sannoufi R, Butler JS, Murphy CM
Plain English This paper examines how biomimetic hydrogels could replace traditional bone cement used in vertebral body stenting, a treatment for spinal fractures. Researchers found that these hydrogels might reduce complications like incomplete healing and cement leakage, offering better support for bone repair. This is important because it could lead to safer treatments with fewer risks for patients with spine fractures.
Who this helps: This helps patients with vertebral compression fractures seeking safer treatment options.
Risk factors for distal junctional failure in long-construct instrumentation for adult spinal deformity.
2022
European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
McDonnell JM, Evans SR, Ahern DP, Cunniffe G, Kepler C +6 more
Plain English This study looked at the factors that make some patients more likely to experience distal junctional failure (DJF) after surgery for spinal deformities. Out of 102 patients, 41 (about 40%) had DJF after their operations, with rod fractures being the most common issue. Key risk factors for DJF included a specific type of surgery called pedicle subtraction osteotomy and difficulties in spinal alignment corrections, which matters because understanding these risks can help improve patient outcomes.
Who this helps: This helps patients undergoing spinal surgery and their doctors by identifying potential complications.
The Refractive Error and Vision Impairment Estimation with Spectacle Data Study.
2022
Ophthalmology science
Moore M, Loughman J, Butler JS, Ohlendorf A, Wahl S +1 more
Plain English Researchers studied spectacle lens sales data from over 141 million records to understand how well this information reflects the population's eyesight issues, specifically refractive errors like nearsightedness (myopia) and farsightedness (hyperopia). They found that the lens sales data accurately represented the prevalence of myopia up to -2.0 diopters and hyperopia above +3.0 diopters, with vision impairment rates from myopia not significantly different between sales data and a major health survey. This is important because using lens sales data could provide a quick and cost-effective way to track and predict vision problems in different populations.
Who this helps: This helps patients and healthcare providers by improving understanding and monitoring of vision impairments.
Stacey Darwish Jake M McDonnell John S Butler Harry Marland Gráinne Cunniffe Kielan V Wilson Seamus Morris Conor McNamee Aubrie M Sowa Tufikameni Brima
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Plain-English summaries generated by AI.
Not medical advice.