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Anatomy of a Lumbar Spine MRI: Indications for Imaging and Interpretation of Imaging for Surgical Referral

Teaser: 

1Samuel Yoon MD, MSc, 2Tiffany Lung MD, BKin, 3 Albert Yee MD, MSc, FRCSC, FIOR,

1Division of Orthopaedic Surgery, University of Toronto, Toronto, Ontario, Canada.2Division of Orthopaedic Surgery, University of Toronto, Toronto, Ontario, Canada. 3 Professor of Surgery, Department of Surgery, University of Toronto, Marvin Tile Chair Division Chief of Orthopaedic Surgery, Division of Spine Surgery, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.

CLINICAL TOOLS

Abstract: Despite guidelines from multiple medical organizations including Choosing Wisely Canada, routine screening for low back pain symptoms with advanced imaging modalities such as Magnetic Resonance Imaging (MRI) persists. While sensitive, the high prevalence of asymptomatic or non-correlative degenerative findings limits their usefulness for routine screening. Given the constraints on Canadian healthcare resources this is a cause for significant concern. Lumbar MRI examinations should be ordered only with clear clinical indications and never for simple triage. Suitable indications include patients with symptoms of Cauda Equina Syndrome, suspected spinal malignancies, vertebral infections, or a progressive neurologic deficit correlating to a dermatomal and/or myotomal distribution.
Key Words: Appropriateness in diagnostic imaging, lumbar MRI, low back pain, surgical indications.

Members of the College of Family Physicians of Canada may claim MAINPRO-M2 Credits for this unaccredited educational program.

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Lumbar spine MRI is not a useful screening tool as incidental degenerative findings are extremely common.
Routine lumbar MRI usage to investigate low back pain is inappropriate and can cause harm to patients through wasted time and resources, as well as possible nocebo effects.
Lumbar spine MRI is indicated if accompanying Red Flag symptoms, such as recent systemic illness, high suspicion for tumour, or progressive/severe neurological symptoms/signs are present with the back pain.
Elective referrals to spine surgical specialists should confirm that the patient's clinical spinal condition aligns with advanced imaging findings.
The majority of patients with low back pain will improve with conservative management modalities.
Understanding clinical patterns of lumbar related axial pain and lower extremity referred neurologic symptoms is a more useful guide for determining whether or not patients are surgical candidates than obtaining images of structural change.
Patients suspected of having Cauda Equina Syndrome or exhibiting rapid progressive neurological decline in a dermatomal/myotomal distribution should be referred immediately for surgical evaluation.
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Related Terms: Back Health, Appropriateness in diagnostic imaging, lumbar MRI, low back pain, surgical indications
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Social Determinants of Health and Low Back Pain

Teaser: 

1Ted Findlay, DO, CCFP, FCFP, 2Dr. Eugene Wai, MD, MSc, CIP, FRCSC,

1Medical Staff, Calgary Chronic Pain Centre at Alberta Health Services, Calgary, Alberta. 2Associate Professor, University of Ottawa Division of Orthopaedic Surgery, Cross Appointment to School of Epidemiology and Public Health, Ottawa, ON.

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Abstract: It has long been recognized that, following an intervention, two patients with very similar or even identical pathophysiology can have dramatically different outcomes. There is increasing recognition of the role and importance of the social determinants of health as a factor in explaining these differences. This article reviews a number of recent studies that explain the impact of these social determinants, specifically in chronic pain and low back pain. It includes commonly used screening tools and advice for interventions.
Key Words: Social determinants of health, chronic pain, low back pain, screening, social prescription.

Members of the College of Family Physicians of Canada may claim MAINPRO-M2 Credits for this unaccredited educational program.

www.cfpc.ca/Mainpro_M2

You can take quizzes without subscribing; however, your results will not be stored. Subscribers will have access to their quiz results for future reference.

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1. According the World Health Organization, the impact of the social determinants of health on health and illness may outweigh that of health care or lifestyle choices.
2. The social determinants of health identified as being of the most importance specifically for low back pain include education and job position.
3. Most communities across Canada will include a number of resources that can be readily accessed as part of a "Social Prescription".
1. Incorporating social work support at an early stage may have the potential to improve treatment compliance and outcomes for those low back pain patients who have notable challenges related to the social determinants of health.
2. Well validated and easily utilized screening tools already exist for the routine screening of social determinants of health.
3. Sleep disorders are shown to affect nearly half of all people reporting chronic pain, with a bidirectional relationship.
Proper patient selection and pre-operative optimization of all modifiable factors improve outcomes and decrease the possibility of FBSS.
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Related Terms: Back Health, social determinants of health, chronic pain, low back pain, screening, social prescription
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Exercise and Dementia: A Step-by-Step Approach to Prescribing Exercise

Teaser: 

Dr. Alykhan Abdulla, BSC, MD, LMCC, CCFP, DipSportMed CASEM, FCFP, CTH (ISTM), CCPE, Masters Cert Phys Leader, ICD.D

Assistant Professor University of Ottawa Faculty of Medicine, Academic Clinical Professor University of Ottawa Faculty of Nursing Medical Director The Kingsway Health Centre, The Kingsway Travel Clinic, The Kingsway Cosmetic Clinic, Editor in Chief/Author Journal of Current Clinical Care SPORTS MEDICINE, Past Chair Section of General and Family Practice Ontario Medical Association, Bruyere Foundation

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Abstract: Dementia is a threat to the aging population. Although dementia cannot be reversed there is evidence that physical exercise can improve activities of daily living, balance, quality of life, funtion, strength, and mental function through various parameters. This article will focus on aerobic training, resistance training, and flexibility training.
Key Words: dementia, exercise, aerobic training, resistance training, flexibility training, exercise prescription.
Approach to Exercise Prescription includes asking questions during a patient's routine visit.
1. Ask about a patient's level of physical fitness.
2. Review their activities, assessing intensity, duration, and frequency.
3. Develop a fitness goal.
Prescribing exercise to patients with dementia that includes focus on aerobic training, resistance training, and flexibility for the prevention of injuries will help reduce the symptoms of dementia and improve function.
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Related Terms: Sports Medicine, dementia, exercise, aerobic training, resistance training, flexibility training, exercise prescription
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Repetitive Strain Injuries: Featuring Trish the Typist

Teaser: 

Dr. Alykhan Abdulla, BSC, MD, LMCC, CCFPC, DipSportMed CASEM, FCFCP, CTH (ISTM), CCPE, Masters Cert Phys Leader, ICD.D

Assistant Professor University of Ottawa Faculty of Medicine, Academic Clinical Professor University of Ottawa Faculty of Nursing Medical Director The Kingsway Health Centre, The Kingsway Travel Clinic, The Kingsway Cosmetic Clinic, Beechwood Medical Cosmetic Physio Pharmacy, Editor in Chief/Author Journal of Current Clinical Care SPORTS MEDICINE, Vice Chair Section of General and Family Practice Ontario Medical Association, Board Director Eastern Ontario Regional Lab Association, Bruyere Foundation

CLINICAL TOOLS

Abstract: A Repetitive strain injuries are a group of medical conditions that are caused by prolonged repetitive, awkward, or forceful movements that overstress particular muscles, nerves, tendons, or bones. It is most common in the forearms and hands, but can also affect the eyes, neck, shoulders, or back.
Key Words: repetitive strain injuries, good posture, typing technique, regular stretching.
The key to RSI is prevention and that includes the following items:
1. Good Posture: feet flat on the floor, knees at right angles, pelvis rocked forward, lower back slightly arched, upper back naturally rounded, shoulder arms and hands naturally relaxed at the side, head middle of shoulders.
2. Typing technique: wrists straight, let your hands float and your strokes light, and don't strain your fingers for the hard keys like CTRL or ALT.
3. Regular stretching: get up every 15-20 and stretch out your wrists, fingers, elbows, shoulders, neck and upper back.
Repetitive strain injuries are common and can be treated with good posture, proper typing techniques and regular stretching.
Setting up an ergonomic work station at home and taking regular breaks that include strengthening the hands and forearms.
Working with a physiotherapist and/or massage therapist can be helpful in conquering repetitive strain injuries.
To have access to full article that these tools were developed for, please subscribe. The cost to subscribe is $80 USD per year and you will gain full access to all the premium content on www.healthplexus.net, an educational portal, that hosts 1000s of clinical reviews, case studies, educational visual aids and more as well as within the mobile app.
Related Terms: Sports Medicine, repetitive strain injuries, good posture, typing technique, regular stretching
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Refractory Back Pain after Surgery: an Overview of the Failed Back Surgery Syndrome (FBSS)

Teaser: 

1Zhi Wang BSc, MSc MD FRCSC, 2Ali Ghoul MD, 3Jesse Shen MD, PhD Candidate, 4Amer Sebaaly MSc, MD,

1Associate Professor, Montreal University (CHUM), Montreal, Quebec. 2PGY 3 Orthopaedic Resident, Saint Joseph University, Beirut Lebanon. 3PGY 5 Montreal University, Montreal Quebec. 4Orthopedic Lecturer, Saint Joseph University, Beirut, Lebanon.

CLINICAL TOOLS

Abstract: “Lumbar spinal pain of unknown origin, either persisting despite surgical intervention or appearing after surgical intervention for spinal pain, originating in the same topographical location” is a description widely used to describe Failed Back Surgery Syndrome (FBSS). In reality, the syndrome is more often a mismatch between the patient’s expectations and the surgical results. This review will describe the possible causes and presentation of FBSS and highlight the role of the multidisciplinary team approach in its management involving non-operative and surgical interventions. The most important objective is correct patient selection for surgery before the first operation.
Key Words: Failed Back Surgery Syndrome, multi-disciplinary approach, spine surgery, low back pain, patient expectations.

Members of the College of Family Physicians of Canada may claim MAINPRO-M2 Credits for this unaccredited educational program.

www.cfpc.ca/Mainpro_M2

You can take quizzes without subscribing; however, your results will not be stored. Subscribers will have access to their quiz results for future reference.

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1. Fusing even a short segment of the spine can have significant, possibly deleterious effects, on the complex spinal functions.
2. The Failed Back Syndrome is often a mismatch between the patient's expectations and the final result rather than a failure of surgical technique.
3. The poor result may be the result of preoperative, intraoperative or postoperative factors. All three areas must be assessed.
4. Correct patient selection is as important or even more important than the surgical approach.
The incidence of Failed Back Surgery Syndrome ranges from 10-40% after a major spinal operation.
Setting the preoperative expectations with a full discussion between the patient, referring physician and operating surgeon plays a key role.
There are three periods – pre-operative, intra-operative, post-operative–in which FBSS can arise.
Proper patient selection and pre-operative optimization of all modifiable factors improve outcomes and decrease the possibility of FBSS.
To have access to full article that these tools were developed for, please subscribe. The cost to subscribe is $80 USD per year and you will gain full access to all the premium content on www.healthplexus.net, an educational portal, that hosts 1000s of clinical reviews, case studies, educational visual aids and more as well as within the mobile app.
Related Terms: Back Health, failed back surgery syndrome, low back pain, multidisciplinary approach, spine surgery, patient expectations
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Surgical Management of Spondyloarthropathies in the Age of Disease Altering Drugs

Teaser: 

1Mosaab Alsuwaihel, MD, 2Sean Christie, MD,

1PGY4 Dalhousie Neurosurgery Program, Dalhousie University, Halifax, NS. 2Professor, Department of Surgery (Neurosurgery), Faculty of Medicine, Vice-Chair and Director of Research , Division of Neurosurgery, Dalhousie University.

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Abstract: Inflammatory spondyloarthropathies produce synovitis of the spinal joints in rheumatoid arthritis (RA), or enthesitis in ankylosing spondylitis (AS). In RA, progressive disease leads to synovial destruction, ligamentous laxity, pannus formation and deformity. In AS progressive enthesitis results in ascending ossification, kyphotic deformity and rigidity which increase the risk of fracture. Although pain is the common presentation, spinal cord compression can produce neurological deficits. Although the need for surgery has decreased with the advent of new disease altering drugs, there remains a number of indications when surgical consultation remains important.
Key Words: Spondyloarthropathy and spondyloarthritis, Synovium and synovitis, Enthesis and enthesitis, Pannus.

Members of the College of Family Physicians of Canada may claim MAINPRO-M2 Credits for this unaccredited educational program.

www.cfpc.ca/Mainpro_M2

You can take quizzes without subscribing; however, your results will not be stored. Subscribers will have access to their quiz results for future reference.

Pre-test CME Quiz Post-test CME Quiz
1. Inflammatory arthritis from multiple etiologies may affect the spine with different patterns and pathophysiology.
2. Rheumatoid arthritis is a disease of synovial inflammation and in advanced disease leads to synovitis within the atlanto-dental articulation and the facet joints of the spine.
3. If left untreated atlantoaxial subluxation, cranial settling and pannus formation may lead to spinal cord and lower medullary compression.
4. Seronegative arthropathies leads to an enthesitis of the spine, usually starting in the sacroiliac spine and ascending with progressive ossification.
5. As a consequence of pathological alteration of the spine biomechanics, trauma in the setting of ankylosing spondylitis leads to different fracture patterns with a high chance of instability even after minimal trauma.
1. Early and adequate treatment of rheumatoid arthritis can prevent advanced atlanto-axial disease, deformity and neurological injury.
2. Even minimal trauma to the spine in a patient with ankylosing spondylitis has a high risk of instability and neurological injury; detailed imaging is always warranted.
3. With the advent of modern disease modifying agents for the treatment of spondyloarthropathies, the requisite for surgery has decreased but there remain important indications.
To have access to full article that these tools were developed for, please subscribe. The cost to subscribe is $80 USD per year and you will gain full access to all the premium content on www.healthplexus.net, an educational portal, that hosts 1000s of clinical reviews, case studies, educational visual aids and more as well as within the mobile app.
Related Terms: Back Health, Spondyloarthropathy and spondyloarthritis, Synovium and synovitis, Enthesis and enthesitis, Pannus
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Athletes and their Hearts: What the Primary Care Physician Should Recognize

Teaser: 

Dr. Marina Abdel Malak

is a Family Medicine Resident at the University of Toronto. She graduated and completed her Bachelor of Science in Nursing and went on to study Medicine. She has a passion for medical education, patient empowerment, and increasing awareness about the relationship between mental, emotional, and physical health.

CLINICAL TOOLS

Abstract: Physicians will undoubtedly follow athletic patients in their practice, and must therefore be aware of the cardiac adaptations that occur in these patients. Athletic heart syndrome (AHS) is a term used to describe the physiologic adaptation (leading to cardiac hypertrophy and/or dilation) that the heart undergoes in response to intense physical activity. Although these are adaptive responses, physicians need to ensure that these changes are not due to pathological causes such as hypertrophic cardiomyopathy, other genetic or congenital disorders, etc. To do so, physicians must take a through history from the athlete (including family history), conduct a physical exam, and order investigations (such as ECGs, an echocardiograph, etc.) as appropriate. If a pathologic cause is not identified and AHS is noted to be the sole cause of these changes, the athlete should still be counselled on how to safely participate in physical activity.
Key Words: Athletes, cardiovascular care, sports medicine, primary care, screening.
Athletic heart syndrome (AHS) is a physiologic adaptation hypertrophy and/or dilation of the heart that allows for increased stroke volume, decreased heart rate, and increased blood flow and oxygen delivery
The hypertrophy and/or dilation that occurs in AHS can mimic serious illnesses that must be ruled out
To differentiate between AHS and pathological causes of AHS, the physician should take a history and conduct a physical exam. Echocardiography and an ECG are also important
A family history of sudden cardiac death (SCD) is a 'red flag' that must be investigated further
Inquire and investigate for symptoms such as syncope, shortness of breath, connective tissue changes, lab abnormalities, etc. It is important to keep the differential diagnosis broad to ensure a serious cardiovascular condition isn't missed
An echocardiogram should be ordered to assess cardiac function and look for structural changes in the heart
When other causes have been ruled out, AHS may be diagnosed. Although this is not inherently dangerous in itself, all athletes engaging in strenuous activity require counselling and advice around warming up, pacing activity, etc.
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Related Terms: Cardio-Cerebrovascular, athletes, cardiovascular care, sports medicine, primary care, screening
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Primary Care Approach to Degenerative Cervical Myelopathy

Teaser: 

1Ali Moghaddamjou, MD,2Jetan H. Badhiwala, MD,3Michael G. Fehlings. MD, Phd, FRCSC, FACS,

1Division of Neurosurgery, Department of Surgery, University of Toronto, Spinal Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada. 2Division of Neurosurgery, Department of Surgery, University of Toronto, Spinal Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada. 3Division of Neurosurgery, Department of Surgery, University of Toronto, Spinal Program, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada.

CLINICAL TOOLS

Abstract: Degenerative cervical myelopathy is an umbrella term describing all degenerative conditions that present with cervical myelopathy due to compression of the spinal cord. The role of primary care physicians (PCPs) in early identification is vital as delayed diagnosis can lead to irreversible neurological impairment. Patients often present with subtle neurological deficits associated with neck or upper extremity pain. Screening for upper motor neuron signs, gait disturbances, fine motor abnormalities and bowel bladder symptoms is critical. Currently, surgical decompression is the treatment of choice but with future advancements in non-operative treatments, PCPs are expected to play a larger role in treatment plans.
Key Words: degenerative cervical myelopathy, primary care, cervical spondylotic myelopathy, degenerative disc disease.

Members of the College of Family Physicians of Canada may claim MAINPRO-M2 Credits for this unaccredited educational program.

www.cfpc.ca/Mainpro_M2

You can take quizzes without subscribing; however, your results will not be stored. Subscribers will have access to their quiz results for future reference.

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PCPs play a vital role in the management of DCM as a delayed diagnosis can lead to irreversible neurological impairment.
A heightened level of awareness with a comprehensive history and a focused physical examination are essential.
With advancements in biomarkers and emerging neuroprotective and regenerative agents, we can expect an increased role in the primary care medical management of DCM patients soon.
The approach to DCM management is multidisciplinary and generally will involve PCPs, spinal surgeon, physiotherapist, pain specialist, and neurologist.
Patients with query bilateral carpal tunnel syndrome should be assessed for DCM.
Patients with moderate to severe DCM or unequivocal progression of mild DCM require surgical treatment while there exists clinical equipoise between structured non-operative therapies and surgical decompression for mild non-progressive cases of DCM.
Clinically monitor patients with mild DCM frequently and carefully for subtle signs of neurological progression
To have access to full article that these tools were developed for, please subscribe. The cost to subscribe is $80 USD per year and you will gain full access to all the premium content on www.healthplexus.net, an educational portal, that hosts 1000s of clinical reviews, case studies, educational visual aids and more as well as within the mobile app.
Related Terms: Back Health, degenerative cervical myelopathy, primary care, cervical spondylotic myelopathy, degenerative disc disease
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Frailty in Adult Spine Surgery—A Clinical Update

Teaser: 

1Eryck Moskven, MD,2Raphaële Charest-Morin, MD, FRCSC,

1PGY 1, Department of Orthopaedics, Vancouver Spine Surgery Institute, University of British Columbia, Vancouver, BC. 2Clinical Assistant Professor, Combined Neurosurgical and Orthopaedic Spine Program, Vancouver General Hospital, University of British Columbia, Vancouver, BC.

CLINICAL TOOLS

Abstract: Purpose: Frailty is a state of increased vulnerability. This paper reviews the definitions and applicability of frailty tools and discusses the impact of frailty in patients with spinal disease.
Recent Findings: Frailty is a significant risk factor for postoperative adverse-events (AEs), prolonged postoperative length of stay (LOS), adverse discharge disposition, and mortality following spine surgery. Cumulative deficit measures such as the mFI are appropriate risk stratification tools, while phenotypic measures are sensitive to capturing the relationship between spine disease and spine surgery on the frailty trajectory.
Summary: Frailty in patients with spinal disorders is predictive of postoperative adverse outcomes. The role of spine surgery to reverse frailty requires investigation.
Key Words: frailty, spine surgery, adverse outcomes, geriatric.

Members of the College of Family Physicians of Canada may claim MAINPRO-M2 Credits for this unaccredited educational program.

www.cfpc.ca/Mainpro_M2

You can take quizzes without subscribing; however, your results will not be stored. Subscribers will have access to their quiz results for future reference.

Pre-test CME Quiz Post-test CME Quiz
Frailty is a state of decreased reserve and increased vulnerability associated with adverse health outcomes.
Clinical frailty measures derived from the cumulative deficit model of frailty such as the mFI are appropriate risk stratification tools for identifying patients at an increased risk of postoperative AEs following spine surgery.
Frailty tools with phenotypic constructs are the most sensitive measures in capturing the relationship between spinal pathology and surgical intervention on the frailty trajectory.
When assessing an elderly patient, the FRAIL acronym is a helpful guide to screen for frailty - F (fatigue), R (resistance/muscular weakness), A (ambulatory difficulty), I (illness and comorbidities), and L (unintentional loss of weight).
Access to a readily available clinical frailty assessment tool on a mobile device, such as the Clinical Frailty Scale (CFS), reduces the need for extensive chart review to calculate and determine frailty severity.
When assessing for surgical candidacy the clinician should evaluate the impact of spinal pathology on health-related quality of life, the magnitude of the proposed surgical intervention and the frailty status.
To have access to full article that these tools were developed for, please subscribe. The cost to subscribe is $80 USD per year and you will gain full access to all the premium content on www.healthplexus.net, an educational portal, that hosts 1000s of clinical reviews, case studies, educational visual aids and more as well as within the mobile app.
Related Terms: Back Health, frailty, spine surgery, adverse outcomes, geriatrics
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Common Myths about mRNA COVID-19 Vaccine

Teaser: 

Zainab Abdurrahman, BSc, MMath, MD, FRCPC (Paediatrics), FRCPC (Clinical Immunology and Allergy)

Assistant Clinical Professor (Adjunct) of Paediatrics, McMaster University, Hamilton, ON.

CLINICAL TOOLS

Abstract: There are many concerns the general population has over the new mRNA vaccines that have been produced and are now being distributed in countries around the world to help curb the spread of COVID-19. This review helps to debunk the myths around some of the more common concerns.
Key Words: COVID-19, vaccines, mRNA, trials, studies.
The mRNA vaccine is safe and effective for the prevention of COVID-19.
The two mRNA vaccines approved for use in Canada are the Pfizer-Biontech and the Moderna vaccine.
The Ministry of Health updated their guidelines indicating that the vaccine is still recommended for those with allergies.
It is important to discuss and dispel the myths that patients may have surrounding the mRNA vaccines.
The vaccine is safe and effective for the prevention of COVID-19.
Despite the safety and efficacy of the vaccine, patients who receive it should be reminded to continue wearing a mask and physically distance and follow public health guidelines.
To have access to full article that these tools were developed for, please subscribe. The cost to subscribe is $80 USD per year and you will gain full access to all the premium content on www.healthplexus.net, an educational portal, that hosts 1000s of clinical reviews, case studies, educational visual aids and more as well as within the mobile app.
Related Terms: Infectious Diseases, COVID-19, vaccines, trials, studies, mRNA
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