A comprehensive finite element model of surgical treatment for cervical myelopathy

BackgroundCervical myelopathy is a common and debilitating chronic spinal cord dysfunction. Treatment includes anterior and/or posterior surgical intervention to decompress the spinal cord and stabilize the spine, but no consensus has been made as to the preferable surgical intervention. The objective of this study was to develop an finite element model of the healthy and myelopathic C2-T1 cervical spine and common anterior and posterior decompression techniques to determine how spinal cord stress and strain is altered in healthy and diseased states.MethodsA finite element model of the C2-T1 cervical spine, spinal cord, pia, dura, cerebral spinal fluid, and neural ligaments was developed and validated against in vivo human displacement data. To model cervical myelopathy, disc herniation and osteophytes were created at the C4-C6 levels. Three common surgical interventions were then incorporated at these levels.FindingsThe finite element model accurately predicted healthy and myelopathic spinal cord displacement compared to motions observed in vivo. Spinal cord strain increased during extension in the cervical myelopathy finite element model. All surgical techniques affected spinal cord stress and strain. Specifically, adjacent levels had increased stress and strain, especially in the anterior cervical discectomy and fusion case.InterpretationsThis model is the first biomechanically validated, finite element model of the healthy and myelopathic C2-T1 cervical spine and spinal cord which predicts spinal cord displacement, stress, and strain during physiologic motion. Our findings show surgical intervention can cause increased strain in the adjacent levels of the spinal cord which is particularly worse following anterior cervical discectomy and fusion.     

Pain management: What's the more efficient model?

ObjectivesConduct a literature review on the organization models for the chronic neuropathic pain management of spinal cord injury (SCI) patients.MethodsBibliographical research on Medline based on the following keywords: chronic neuropathic pain in spinal cord injury–comprehensive management–multidisciplinary approaches.Results and discussionNo data was found in the literature on this specific topic. We took the option to report the data from the French laws regarding chronic non-cancer pain management. Chronic pain in SCI patients needs a specific and rigorous approach, justifying the role of the physical medicine and rehabilitation (PM&R) physician within specialized pain management centers as a key referent physician and coordinator for this type of patient. Furthermore, SCI pain is a chronic pain and as such requires a global care management; engulfing its emotional, affective, cognitive and behavioral aspects. These particular aspects need to be evaluated within specialized centers dedicated to chronic pain that provide specific therapies such as behavioral and cognitive therapies.ConclusionSpecific pain management centers or hospital units remain the benchmark place for chronic pain in SCI patients. PM&R physicians play a key role in the care management of chronic SCI pain. The partnership PM&R–Pain management center aims to provide the most efficient and coordinated care for SCI patient.     

Patient awareness of physical medicine and rehabilitation.

The present study examined the extent to which patients referred to a specialist in physical medicine and rehabilitation (PM&R) could correctly identify the name or essential scope of the specialty the physiatrist practiced. The hypothesis, based on the author's experiences as a staff physiatrist, was that most patients would not be aware of the name and scope of the specialty of physical medicine and rehabilitation. This prospective study involved the administering of a questionnaire to 202 consecutive referrals to a University-affiliated PM&R outpatient clinic. Of the respondents, 19% were able to correctly identify that the physician they were referred to was either a PM&R specialist, a physical medicine specialist, a rehabilitation specialist or a physiatrist. Among the incorrect responses, orthopedist, neurologist and rheumatologist were most prevalent, and 33% of the respondents thought the physiatrist performed surgery. The implications of the findings are discussed. There continues to be a need to educate the public about the scope of practice of physiatry.     

Factors Associated With Posttraumatic Stress Disorder Among Veterans of Recent Wars Receiving Veterans Affairs Chiropractic Care

ObjectivesPost-traumatic stress disorder (PTSD) is thought to complicate pain management outcomes, which is consistent with the impact of other psychosocial factors in the biopsychosocial model of pain. This study aimed to identify patient sociodemographic and clinical characteristics associated with PTSD prevalence among veterans of Operations Enduring Freedom/Iraqi Freedom/New Dawn (OEF/OIF/OND) who received Veterans Affairs (VA) chiropractic care.MethodsA cross-sectional analysis of electronic health record data from a national cohort study of OEF/OIF/OND veterans with at least 1 visit to a VA chiropractic clinic from 2001 to 2014 was performed. The primary outcome measure was a prior PTSD diagnosis. Variables including sex, race, age, body mass index, pain intensity, alcohol and substance use disorders, and smoking status were examined in association with PTSD diagnosis using logistic regression.ResultsWe identified 14,025 OEF/OIF/OND veterans with at least 1 VA chiropractic visit, with a mean age of 38 years and 54.2% having a diagnosis of PTSD. Male sex (adjusted odds ratio [OR] = 1.23, 95% CI = 1.11-1.37), younger age (OR = 0.99, CI = 0.98-0.99), moderate-to-severe pain intensity (numerical rating scale ≥ 4) (OR = 1.72, CI = 1.59-1.87), body mass index ≥ 30 (OR = 1.34, CI = 1.24-1.45), current smoking (OR = 1.32, CI = 1.20-1.44), and having an alcohol or substance use disorder (OR = 4.51, CI = 4.01-5.08) were significantly associated with a higher likelihood of PTSD diagnosis.ConclusionPost-traumatic stress disorder is a common comorbidity among OEF/OIF/OND veterans receiving VA chiropractic care and is significantly associated with several patient characteristics. Recognition of these factors is important for the appropriate diagnosis and management of veterans with PTSD seeking chiropractic treatment for pain conditions.     

Missed cervical spine fracture: chiropractic implications

OBJECTIVE: To discuss the case of a patient with an anterior compression fracture of the cervical spine, which had been overlooked on initial examination. CLINICAL FEATURES: A 36-year-old man was seen at a chiropractic clinic 1 month after diving into the ocean and hitting his head on the ocean floor. He chipped a tooth but denied loss of consciousness. Initial medical examination in the emergency department did not include radiography, but an anti-inflammatory medication was prescribed. Radiographs taken at the chiropractic clinic 1 month later revealed an anterior compression fracture of the C7 vertebra, with migration of the fragment noted on flexion and extension views. INTERVENTION AND OUTCOME: The patient was referred back to his medical doctor for further evaluation and management.He was instructed to wear a Philadelphia collar for 4 weeks. During this time period, he reported "shooting" pain and tingling from his neck into his arms. The patient reported resolution of his neck and arm symptoms at 2.5 months after injury. Follow-up radiographs at 6 months after injury revealed fusion of the fracture fragment with mild residual deformity. At that time, the patient began a course of chiropractic treatment. CONCLUSION: After head trauma, it is essential to obtain a radiograph of the cervical spine to rule out fracture. Chiropractors should proceed with caution, regardless of any prior medical or ancillary evaluation, before commencing cervical spine manipulation after head and neck trauma.     

The Immediate Effects of Upper Thoracic Translatoric Spinal Manipulation on Cervical Pain and Range of Motion: A Randomized Clinical Trial

This study examined the effect of translatoric spinal manipulation (TSM) on cervical pain and cervical active motion restriction when applied to upper thoracic (T1-T4) segments. Active cervical rotation range of motion was measured re- and post-intervention with a cervical inclinometer (CROM), and cervical pain status was monitored before and after manipulation with a Faces Pain Scale. Study participants included a sample of convenience that included 32 patients referred to physical therapy with complaints of pain in the mid-cervical region and restricted active cervical rotation. Twenty-two patients were randomly assigned to the experimental group and ten were assigned to the control group. Pre- and post-intervention cervical range of motion and pain scale measurements were taken by a physical therapist assistant who was blinded to group assignment. The experimental group received TSM to hypomobile upper thoracic segments. The control group received no intervention. Paired t-tests were used to analyze within-group changes in cervical rotation and pain, and a 2-way repeated-measure ANOVA was used to analyze between-group differences in cervical rotation and pain. Significance was accepted at p = 0.05. Significant changes that exceeded the MDC₉₅ were detected for cervical rotation both within group and between groups with the TSM group demonstrating increased mean (SD) in right rotation of 8.23° (7.41°) and left rotation of 7.09° (5.83°). Pain levels perceived during post-intervention cervical rotation showed significant improvement during right rotation for patients experiencing pain during bilateral rotation only (p=.05). This study supports the hypothesis that spinal manipulation applied to the upper thoracic spine (T1-T4 motion segments) significantly increases cervical rotation ROM and may reduce cervical pain at end range rotation for patients experiencing pain during bilateral cervical rotation.     

Long-standing axis odontoid fracture in patient presenting with acute low back pain

Objective:To present the case of a patient affending for chiropractic care with acute low back pain. Incidentally, a previously unknown long-standing axis odontoid fracture was diagnosed, which resulted in a referral for neurosurgical management.Clinical features:A 63-year-old man presented for chiropractic care with a chief complaint of severe acute low back pain. His examination revealed evidence of lumbar and upper cervical subluxations. Subsequent X-rays revealed a double rotatory lumbar scoliosis and an axis odontoid fracture at its base. A cervical flexion X-ray revealed instability and a later computed tomography confirmed the fracture.Intervention and outcome:Due to poor patient compliance, a neurosurgical consultation and subsequent upper cervical arthrodesis did not take place until over 4 months after the initial diagnosis. A Brooks C1-C2 posterior fusion using Songer cables and an iliac crest bone graft resulted in a successful outcome. Prior to surgery, the patient's low back pain was managed by the chiropractor with a successful outcome.Conclusion:This case presents a rare, yet precarious situation with the chiropractic management of a patient with a potentially catastrophic condition. This clinical example also stresses the importance of careful clinical assessment and imaging procedures for patients before providing spinal adjustments in order to avoid a potential iatrogenic incident. This case report also demonstrates the successful outcome of specific chiropractic care in the amelioration of acute low back pain.     

Cervicocephalic kinesthetic sensibility in patients with chronic, nontraumatic cervical spine pain.

OBJECTIVE: To investigate cervicocephalic kinesthetic sensibility (head repositioning accuracy to subjective straight ahead) in patients with chronic, nontraumatic cervical spine pain. DESIGN: A prospective, 2-group, observational design. SETTING: An outpatient chiropractic clinic in the United Kingdom. PARTICIPANTS: Eleven patients (6 men, 5 women; mean age +/- standard deviation, 41.1 +/- 13.3 yr; range, 18-55 yr) with chronic, nontraumatic cervical spine pain (mean duration, 24 +/- 18 mo), with no evidence of cervical radiculopathy and/or myelopathy or any other neurologic disorder. Eleven asymptomatic, unimpaired volunteers (5 men, 6 women; mean age, 39.3 +/- 10.3 yr; range, 28-54 yr) with no history of whiplash or other cervical spine injury or pain served as controls. MAIN OUTCOME MEASURES: Cervicocephalic kinesthetic sensibility was investigated by testing the ability of blindfolded participants to relocate accurately the head on the trunk, to a subjective straight-ahead position, after a near-maximal active movement of the head in the horizontal or vertical plane. The active cervical range of motion and the duration and intensity of neck pain were also recorded. RESULTS: Mann-Whitney U testing indicated that the patient (P) group was no less accurate in head repositioning than the control (C) group for all movement directions except flexion (median global positioning error [95% confidence interval], P = 5.7 degrees [5.03-9.10], C = 4.2 degrees [3.17-5.32]; p <.05). CONCLUSIONS: Nontraumatic neck pain patients show little evidence of impaired cervicocephalic kinesthetic sensibility. These results contrast with studies of chronic cervical pain patients in which the origin was not controlled or involved a cervical whiplash injury.     

The effect of chiropractic care for a 30-year-old male with advanced ankylosing spondylitis: a time series case report

BACKGROUND: Manipulative treatment for ankylosing spondylitis is a controversial subject, and no literature on using this therapy for advanced cases with fusion of the spine could be found. OBJECTIVE: To discuss the case presentation of a patient with advanced ankylosing spondylitis who was treated with chiropractic manipulation and mobilization.Clinical features The patient was a 30-year-old Asian male who was first diagnosed with ankylosing spondylitis at age 12. Despite medical intervention, a series of exacerbations had fused his sacroiliac joints and the facet joints in his lumbar and cervical spine. He presented with local moderate-to-severe pain in his low back and neck and lack of mobility.Intervention and outcome The patient was treated with grade 5 manipulation of his thoracic spine and grade 3 mobilization of his lumbar and cervical spine, along with physical therapy and stretches for a period of 12 weeks. He reported some improvement of his condition as measured by the SF-36 Health Survey and several measures of spinal flexibility. CONCLUSIONS: This case shows that even advanced cases of ankylosing spondylitis may show a favorable response to chiropractic manipulative therapy.     

La chirurgie fonctionnelle du ou des membres supérieurs chez la personne tétraplégique

Upper limb functional surgery has been endorsed by over 40 years of clinical experience and practice (Ann Readapt Med Phys 46 (2003) 144–55). The procedures are standardized and the techniques mastered. The physical medicine and rehabilitation (PM&R) teams that focus on rehabilitation of tetraplegics with upper limb surgery are aware that this clinical experience is built on communication between the surgeon and the PM&R teams and that post-surgical care is critical and key to the best possible functional outcome. This text aims to introduce a special edition of La lettre de MPR (the PM&R letter) dedicated to this subject, which will be published in the coming months.     

Beyond war and military medicine: social factors in the development of prosthetics

Reznick JS. Beyond war and military medicine: social factors in the development of prosthetics.Polytrauma is an immediate outcome of current warfare, and the need to investigate this condition is equally immediate. The value of historical analysis in this endeavor should not be underestimated. It is among the best tools we have to help ensure that current research and practice involve engagement with the social contexts of polytrauma as well as with the medical science of its treatment. This special communication provides historical perspective on certain aspects of the polytraumatic condition—namely, limb loss, prosthetic rehabilitation, and community reintegration after receiving a prosthesis. It discusses the influential role of societal factors in these areas to encourage greater understanding that the care of persons with polytrauma must involve critical thinking about their relationships to and participation in society as well as their treatment by medical science. This special communication also provides historical perspective to enrich appreciation of the value of history for the field of physical medicine and rehabilitation (PM&R), the PM&R clinician, and the PM&R clinical researcher. Readers will learn that historical knowledge puts PM&R research and practice into perspective, reminding us that rehabilitation should involve critical thinking not only about medicine, but also about social roles and the participation of people in society despite physical and psychologic challenges.     

Management of atypical infant colic – a pain syndrome of infancy – and the emotional stress associated with it: Why treat a benign disorder?

Objective

To present one case study in which the complete resolution of atypical infantile colic – a pain syndrome of infancy – and associated symptoms and emotional stress was achieved when the patient underwent chiropractic treatment.

Design

A case report.

Setting

Private chiropractic practice.

Subjects

This case involved a 4-month-old male infant presenting with excessive crying and associated head malposition, disturbed feeding and sleeping patterns, all of which started one-and-a-half months previously. Upper cervical, mid thoracic and cranial dysfunction as well as suboccipital musculature hypertonicity was recorded in this case.

Methods

The infant received diversified low-force chiropractic manipulation to the upper cervical spine and low-pulsed impulses to the thoracic spine. Additionally, soft tissue stretching to the restricted cervical and trunk musculature and light touch cranial manipulative therapy was given to the infant. Treatment was provided over a 4-week period, twice weekly and included supportive care (advice about emotional disturbances and coping mechanisms in times of overwhelming feelings were given to the parents).

Results

Complete resolution of all presenting symptoms was achieved in this instance.

Discussion

This case suggests a possible association between the development of cranial and spinal segmental dysfunction, muscular imbalance and consequential manifestation of symptoms of a pain syndrome of infancy. It also illustrates chiropractic treatment restoring correct spinal and cranial motion, with an associated resolution of symptoms. Finally, it emphasizes the importance of offering help for distressed caregivers.     

Integrating physical medicine and rehabilitation into the curriculum of Iranian medical students

Purpose. To evaluate the attitude of interns toward Physical Medicine and Rehabilitation (PM&R) and design a PM&R curriculum for medical students with continued medical education programmes and workshops based on the needs and interest of Iranian medical community.

Method. Eighty questionnaires were distributed to the medical interns on the last day after attendance in the PM&R ward after participating in a one-month outpatient and inpatient course including 12 lectures.

Results. Out of 80 participants, 34 (42.5%) were female and 46 (57.5%) were male. All the participants believed

participating in a rehabilitation course was necessary; 52 (65%) believed that participating in a separate course of PM&R was necessary, and 28 (35%) believed that rehabilitation of each field of medicine should be presented in its course. A significant percentage (31.4%) of the participants were interested in continuing their education in PM&R specialty.

Conclusion. The enthusiasm of the medical students towards PM&R is a promising sign toward progress of PM&R in Iran which must be directed through a strong effort of physiatrists through setting up appropriate educational programmes for medical students and continued medical education programme s in the universities.     

Programmes de rééducation avant et après chirurgie fonctionnelle du membre supérieur chez la personne tétraplégique: principes et pratiques

With over 30 years experience in functional surgery we can now offer upper-limb functional surgery to almost 7 or 8 out of every 10 tetraplegic patients. Multidisciplinary collaboration in this field needs proper preparation. The patient’s post-surgery rehabilitation must be based on specific programs already validated by experienced physical medicine and rehabilitation (PM&R) teams. The constant interaction between the surgeon and the PM&R team aims to shorten the immobilization time and prevent any risk of ruptures, adhesions or other local complications.     

Metastatic paraplegia and vital prognosis: perspectives and limitations for rehabilitation care. Part 1

Fattal C, Fabbro M, Gelis A, Bauchet L. Metastatic paraplegia and vital prognosis: perspectives and limitations for rehabilitation care. Part 1.

Objective

To evaluate the vital prognosis of patients with metastatic epidural spinal cord compression (MESCC) to determine the relevance and duration of physical medicine and rehabilitation (PM&R) admission.

Data Sources

Publications from 1980 to January 2010 selected from 3 databases.

Study Selection

Publications reporting data correlated with survival and prognosis factors, highlighting publications with level A scientific evidence (prospective randomized controlled studies with significant casuistry and relevant judgment criteria). The work focused on patients with MESCC below T1.

Data Extraction

Standardized reading grid.

Data Synthesis

Thirty-eight studies met the inclusion criteria. Most were retrospective. For survival rate at 1 year, they reported data ranging from 12% to 58%. The 12-month and median survival rates were the data reported most often in the articles. The median survival rate ranged from 2.4 to 30 months, and 12-month survival rates ranged from 12% to 58%. Of publications that chose this parameter, 95% reported 12-month survival rates less than 55.2% (95th percentile) regardless of patients' functional status and associated risk factors (eg, location of primary cancer, metastases spreading, pretreatment ambulatory status).

Conclusions

Despite major progress in cancer care, patients with MESCC still have a limited vital prognosis. The relevance and duration of PM&R care must be evaluated against the patient's functional need for rehabilitation while making time for family. The hypothesis of a 1-month stay extended only once appears reasonable for patients to adapt to their new functional status without taking precious time away from their loved ones.