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PubMed2006

Atherosclerosis in the vertebral artery: an intrinsic risk factor in the use of spinal manipulation?

The presence of atherosclerotic plaques and their influence on the vertebral artery is of clinical importance within the scope of spinal manipulation. Manipulation may stimulate the development of atherosclerotic plaques, could detach an embolus with ensuing infarction, injure the endothelium or may directly cause a dissection in the presence of atherosclerotic plaques. In order to identify the sites and frequency of atherosclerotic plaques and to determine its relation to the tortuous course of the vertebral artery, a cadaveric study was performed. The vertebral arteries of 57 human cadavers were studied. The vertebral artery was virtually divided into four segments: the pre-vertebral (V1), the vertebral (V2), the atlanto-axial (V3), and the intracranial segment (V4). Abnormalities in the origin and course of the vertebral artery were noted, along with any associated osseous, or cartilaginous anomalies in the neck. After dissection, the artery was opened and macroscopically screened for the presence of atherosclerotic plaques. In 22.8% of the cases, no atherosclerotic plaques were present. In 35.1% of the cases, the atherosclerotic plaques were unilateral, of which 60.0% was on the left side, 40.0% on the right side, and in 42.1%, the occurrence was bilateral. Atherosclerotic plaques were significantly more present in the V3 segment than in the V1 (0.007) and V2 segment (0.049). In the V1 (P=0.008) and V2 segment (P=0.002), there was a correlation between a tortuous course of the vessel and the occurrence of atherosclerotic plaques. In individuals with marked atherosclerotic disease, stretching and compression effects of rotational manipulative techniques on atherosclerotic vessels impose a further risk factor for vertebrobasilar insufficiency. As direct evidence of atherosclerotic plaques are rarely available, therapists should avoid manipulative techniques at all levels of the cervical spine in the presence of any indirect sign of atherosclerotic disease or in the presence of calcified arterial walls or tortuosities of the vessels visible on routinely available X-ray images of the cervical or thoracic spine. It is strongly recommended, that if any doubt exists about the nature of a clinical presentation, vigorous manual procedures should be avoided until either the diagnosis is definitive or gentle manual therapy has proven effective.

Age Factors↗

PubMed2005

[Spinal manipulation: survey of French medical physicians who graduated with the national diploma of osteopathy from Strasbourg University].

INTRODUCTION: The use of spinal manipulation (SM) is widespread, particularly in English-speaking countries, where many studies are published showing its popularity. However, no study exists of the demography and activity of the French medical profession. Our objective was to investigate the use of SM by French doctors in their daily practice. MATERIALS AND METHODS: We questioned 234 doctors, general practitioners and specialists who obtained the Inter-Academy of Manual Medicine and Osteopathy Diploma from Strasbourg University between 1985 and 2002. RESULTS: We obtained a response from 140 physicians: 110 (79%) practiced SM in their daily practice. They considered the technique efficient and used it as a first intention. Approximately one quarter of cases resulted in adverse effects on the back. Most of the doctors (77%) continued their education during their career. CONCLUSION: This first assessment of the practice of physicians trained in a university in manual medicine allows for confirming the respect of good medical practice with regular actualization of knowledge and reasonable outpatient care.

Attitude of Health Personnel↗

PubMed1997

The effect of spinal manipulation in the treatment of cervicogenic headache.

PURPOSE: To study whether the isolated intervention of high-speed, low-amplitude spinal manipulation in the cervical spine has any effect on cervicogenic headache. DESIGN: Prospective randomized controlled trial with a blinded observer. SETTING: Ambulatory outpatient facility in an independent research institution. PARTICIPANTS: Fifty-three subjects suffering from frequent headaches who fulfilled the International Headache Society criteria for cervicogenic headache (excluding radiological criteria). These subjects were recruited from 450 headache sufferers who responded to newspaper advertisements. INTERVENTION: After randomization, 28 of the group received high-velocity, low-amplitude cervical manipulation twice a week for 3 wk. The remaining 25 received low-level laser in the upper cervical region and deep friction massage (including trigger points) in the lower cervical/upper thoracic region, also twice a week for 3 wk. MAIN OUTCOME MEASURES: The change from week 1 to week 5 in analgesic use per day, in headache intensity per episode and in number of headache hours per day, as registered in a headache diary. RESULTS: The use of analgesics decreased by 36% in the manipulation group, but was unchanged in the soft-tissue group; this difference was statistically significant (p = .04, chi 2 for trend). The number of headache hours per day decreased by 69% in the manipulation group, compared with 37% in the soft-tissue group; this was significant at p = .03 (Mann-Whitney). Finally, headache intensity per episode decreased by 36% in the manipulation group, compared with 17% in the soft-tissue group; this was significant at p = .04 (Mann-Whitney). CONCLUSION: Spinal manipulation has a significant positive effect in cases of cervicogenic headache.

Adult↗

PubMed2006

[Is systematic radiography needed before spinal manipulation? Recommendations of the SOFMMOO].

OBJECTIVES: The French National Health Authority recommends systematic radiography before lumbar manipulation. However, current research shows radiography to have more disadvantages than advantages. For the cervical spine, in cases of complication following cervical manipulation, the lack of prior radiography is a fault, even if such x-ray results would have advised manipulation. To establish clear recommendations on this topic, we searched in the literature for complications of spinal manipulations that could have been prevented had preliminary radiography been performed to determine whether these complications were anticipated or not by the international guidelines. MATERIAL AND METHODS: Literature search. RESULTS: For the lumbar and thoracic spine, the international guidelines are sufficient, except in cases of aneurysmal bone cyst, which can appear until the age of 25 years. For the cervical spine, despite a lack of data in the literature, prudence and medicolegal issues justify the performance of systematic radiography. CONCLUSION: The SOFMMOO recommends systematic radiography prior to cervical manipulation and in case of back or neck pain in patients of less than 25 years of age. In all other cases, the international guidelines provide sufficient recommendations.

Adolescent↗

PubMed1995

Misuse of the literature by medical authors in discussing spinal manipulative therapy injury.

OBJECTIVE: This study was conducted to determine how the words chiropractic and chiropractor have been used in publications in relation to the reporting of complications from cervical spinal manipulation therapy (SMT). STUDY DESIGN: The study method was to collect recent publications relating to spinal manipulation iatrogenesis which mentioned the words chiropractic and/or chiropractor and then determine the actual professional training of the practitioner involved. METHOD: The training of the practitioner in each report was determined by one of three means: surveying previous publications, surveying subsequent publications and/or by writing to the author(s) of ten recent publications which had used the words chiropractic and/or chiropractor. RESULTS: This study reveals that the words chiropractic and chiropractor commonly appear in the literature to describe SMT, or practitioner of SMT, in association with iatrogenic complications, regardless of the presence or absence of professional training of the practitioner involved. CONCLUSION: The words chiropractic and chiropractor have been incorrectly used in numerous publications dealing with SMT injury by medical authors, respected medical journals and medical organizations. In many cases, this is not accidental; the authors had access to original reports that identified the practitioner involved as a nonchiropractor. The true incidence of such reporting cannot be determined. Such reporting adversely affects the reader's opinion of chiropractic and chiropractors.

Chiropractic↗

PubMed1996

Side-effects of chiropractic spinal manipulation: types frequency, discomfort and course.

OBJECTIVE: To make a preliminary appraisal of the types of unpleasant reactions reported by patients after spinal manipulation and to estimate their frequency. STUDY DESIGN: Standardized interview data collected in a longitudinal survey. METHOD: Ten chiropractors collected data on all unpleasant reactions that were reported after a maximum of six visits by ten consecutive patients per chiropractor, with the use of a questionnaire that contained mainly closed-ended questions. RESULTS: Following 368 treatments in 95 patients, some type of side-effect was reported after 1/3 of treatments. Local or radiating symptoms were most commonly reported (23%). No alarming events were reported. Ninety percent of all reactions were graded by the patients as moderate or slight. They commenced on the day of therapy in 87% of cases, and had disappeared within 24 hours in 83%. CONCLUSION: Results from this preliminary study indicate that reactions to spinal manipulation may be relatively common but benign in nature and of short duration. No estimate could be made of rare or serious side-effects.

Adult↗

PubMed2003

Chiropractic spinal manipulation for neck pain: a systematic review.

Chiropractic spinal manipulation (CSM) is often used as a treatment for neck pain. However, its effectiveness is unclear. The aim of this article was to evaluate systematically and critically the effectiveness of CSM for neck pain. Six electronic databases were searched for all relevant randomized clinical trials. Strict inclusion/exclusion criteria had been predefined. Key data were validated and extracted. Methodologic quality was assessed by using the Jadad score. Statistical pooling was anticipated but was deemed not feasible. Four studies met the inclusion/exclusion criteria. Two studies were on single interventions, and 2 included series of CSM treatments, both with a 12-month follow-up. The 2 short-term trials used spinal mobilization as a control intervention. The 2 long-term studies compared CSM with exercise therapy. None of the 4 trials convincingly demonstrated the superiority of CSM over control interventions. In conclusion, the notion that CSM is more effective than conventional exercise treatment in the treatment of neck pain was not supported by rigorous trial data.

Exercise Therapy↗

PubMed2004

The forces applied by female and male chiropractors during thoracic spinal manipulation.

BACKGROUND: On average, women weigh less, have a smaller frame, and are less muscular than men. Since the peak thrust force applied during spinal manipulative treatments can be quite high and must be reached in a very short period of time, one might question the physical ability of women to generate such high forces. OBJECTIVE: To study the forces generated by male and female chiropractors as they deliver spinal manipulation to the thoracic spine. METHODS: Fourteen male and 14 female experience-matched chiropractors participated in this study. They each manipulated 1 of 9 asymptomatic male adult subjects of similar height and weight. The clinicians were asked to manipulate a transverse process in the vicinity of T4 and T9. Any technique could be used as long as the treatment thrust was in a posterior to anterior direction and the hand contact fit onto the sensor pad (area = 100 cm2). RESULTS: There were no significant differences (P<.05) between male and female chiropractors for any measurements in the upper thoracic area. For the lower thoracic manipulations, the preload forces for the male chiropractors were significantly greater (P<.05) than those for the female chiropractors. The remaining variables were the same between the 2 groups. CONCLUSIONS: Female chiropractors produce, from a mechanical point of view, similar manual treatments as their male colleagues.

Adult↗

PubMedDate not supplied

Mechanical force spinal manipulation increases trunk muscle strength assessed by electromyography: a comparative clinical trial.

OBJECTIVE: The objective of this study was to determine whether mechanical force, manually-assisted (MFMA) spinal manipulative therapy (SMT) affects paraspinal muscle strength as assessed through use of surface electromyography (sEMG). DESIGN: Prospective clinical trial comparing sEMG output in 1 active treatment group and 2 control groups. SETTING: Outpatient chiropractic clinic, Phoenix, AZ. SUBJECTS: Forty subjects with low back pain (LBP) participated in the study. Twenty patients with LBP (9 females and 11 males with a mean age of 35 years and 51 years, respectively) and 20 age- and sex-matched sham-SMT/control LBP subjects (10 females and 10 males with a mean age of 40 years and 52 years, respectively) were assessed. METHODS: Twenty consecutive patients with LBP (SMT treatment group) performed maximum voluntary contraction (MVC) isometric trunk extensions while lying prone on a treatment table. Surface, linear-enveloped sEMG was recorded from the erector spinae musculature at L3 and L5 during a trunk extension procedure. Patients were then assessed through use of the Activator Methods Chiropractic Technique protocol, during which time they were treated through use of MFMA SMT. The MFMA SMT treatment was followed by a dynamic stiffness and algometry assessment, after which a second or post-MVC isometric trunk extension and sEMG assessment were performed. Another 20 consecutive subjects with LBP were assigned to one of two other groups, a sham-SMT group and a control group. The sham-SMT group underwent the same experimental protocol with the exception that the subjects received a sham-MFMA SMT and dynamic stiffness assessment. The control group subjects received no SMT treatment, stiffness assessment, or algometry assessment intervention. Within-group analysis of MVC sEMG output (pre-SMT vs post-SMT sEMG output) and across-group analysis of MVC sEMG output ratio (post-SMT sEMG/pre-SMT sEMG output) during MVC was performed through use of a paired observations t test (POTT) and a robust analysis of variance (RANOVA), respectively. MAIN OUTCOME MEASURES: Surface, linear-enveloped EMG recordings during isometric MVC trunk extension were used as the primary outcome measure. RESULTS: Nineteen of the 20 patients in the SMT treatment group showed a positive increase in sEMG output during MVC (range, -9.7% to 66.8%) after the active MFMA SMT treatment and stiffness assessment. The SMT treatment group showed a significant (POTT, P < 0.001) increase in erector spinae muscle sEMG output (21% increase in comparison with pre-SMT levels) during MVC isometric trunk extension trials. There were no significant changes in pre-SMT vs post-SMT MVC sEMG output for the sham-SMT (5.8% increase) and control (3.9% increase) groups. Moreover, the sEMG output ratio of the SMT treatment group was significantly greater (robust analysis of variance, P = 0.05) than either that of the sham-SMT group or that of the control group. CONCLUSIONS: The results of this preliminary clinical trial demonstrated that MFMA SMT results in a significant increase in sEMG erector spinae isometric MVC muscle output. These findings indicate that altered muscle function may be a potential short-term therapeutic effect of MFMA SMT, and they form a basis for a randomized, controlled clinical trial to further investigate acute and long-term changes in low back function.

Adult↗

PubMed1995

Chronic asthma and chiropractic spinal manipulation: a randomized clinical trial.

The purpose of this randomized patient- and observer-blinded cross-over trial was to evaluate the efficacy of chiropractic treatment in the management of chronic asthma when combined with pharmaceutical maintenance therapy. The trial was conducted at the National University Hospital's Out-patient Clinic in Copenhagen, Denmark. Thirty-one patients aged 18-44 years participated, all suffering from chronic asthma controlled by bronchodilators and/or inhaled steroids. Patients, or who had received chiropractic treatment for asthma within the last 5 years, who received oral steroids and immunotherapy, were not eligible. Patients were randomized to receive either active chiropractic spinal manipulative treatment or sham chiropractic spinal manipulative treatment twice weekly for 4 weeks, and then crossed over to the alternative treatment for another 4 weeks. Both phases were preceded and followed by a 2-week period without chiropractic treatment. The main outcome measurements were forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), daily use of inhaled bronchodilators, patient-rated asthma severity and non-specific bronchial reactivity (n-BR). Using the cross-over analysis, no clinically important or statistically significant differences were found between the active and sham chiropractic interventions on any of the main or secondary outcome measures. Objective lung function did not change during the study, but over the course of the study, non-specific bronchial hyperreactivity (n-BR) improved by 36% (P = 0.01) and patient-rated asthma severity decreased by 34% (P = 0.0002) compared with the baseline values.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

PubMed2001

Efficacy of spinal manipulation for chronic headache: a systematic review.

BACKGROUND: Chronic headache is a prevalent condition with substantial socioeconomic impact. Complementary or alternative therapies are increasingly being used by patients to treat headache pain, and spinal manipulative therapy (SMT) is among the most common of these. OBJECTIVE: To assess the efficacy/effectiveness of SMT for chronic headache through a systematic review of randomized clinical trials. STUDY SELECTION: Randomized clinical trials on chronic headache (tension, migraine and cervicogenic) were included in the review if they compared SMT with other interventions or placebo. The trials had to have at least 1 patient-rated outcome measure such as pain severity, frequency, duration, improvement, use of analgesics, disability, or quality of life. Studies were identified through a comprehensive search of MEDLINE (1966-1998) and EMBASE (1974-1998). Additionally, all available data from the Cumulative Index of Nursing and Allied Health Literature, the Chiropractic Research Archives Collection, and the Manual, Alternative, and Natural Therapies Information System were used, as well as material gathered through the citation tracking, and hand searching of non-indexed chiropractic, osteopathic, and manual medicine journals. DATA EXTRACTION: Information about outcome measures, interventions and effect sizes was used to evaluate treatment efficacy. Levels of evidence were determined by a classification system incorporating study validity and statistical significance of study results. Two authors independently extracted data and performed methodological scoring of selected trials. DATA SYNTHESIS: Nine trials involving 683 patients with chronic headache were included. The methodological quality (validity) scores ranged from 21 to 87 (100-point scale). The trials were too heterogeneous in terms of patient clinical characteristic, control groups, and outcome measures to warrant statistical pooling. Based on predefined criteria, there is moderate evidence that SMT has short-term efficacy similar to amitriptyline in the prophylactic treatment of chronic tension-type headache and migraine. SMT does not appear to improve outcomes when added to soft-tissue massage for episodic tension-type headache. There is moderate evidence that SMT is more efficacious than massage for cervicogenic headache. Sensitivity analyses showed that the results and the overall study conclusions remained the same even when substantial changes in the prespecified assumptions/rules regarding the evidence determination were applied. CONCLUSIONS: SMT appears to have a better effect than massage for cervicogenic headache. It also appears that SMT has an effect comparable to commonly used first-line prophylactic prescription medications for tension-type headache and migraine headache. This conclusion rests upon a few trials of adequate methodological quality. Before any firm conclusions can be drawn, further testing should be done in rigorously designed, executed, and analyzed trials with follow-up periods of sufficient length.

Chiropractic↗

PubMed2006

Spinal epidural hematoma after spinal manipulative therapy in a patient undergoing anticoagulant therapy: a case report.

OBJECTIVE: We report on the case of a patient with spinal epidural hematoma (SEH) after spinal manipulative therapy and review features of reported cases of a similar nature. CLINICAL FEATURES: The patient was undergoing Coumadin anticoagulant therapy for atrial fibrillation and presented to the chiropractor complaining of a stiff neck. After cervical manipulation, he developed paresthesia in both feet, progressing to motor deficits in all 4 extremities. He required a laminectomy and evacuation of a clot indenting the spinal cord. RESULTS: Review of the literature revealed 7 reported cases of SEH after manipulation; 5 patients underwent cervical manipulation and 1 patient received Coumadin therapy. CONCLUSION: Practitioners of spinal manipulative therapy should be aware of SEH as a possible complication of manipulation in patients at risk and should exercise caution in the care of patients undergoing anticoagulant therapy.

Aged↗

PubMed1992

Three-dimensional head kinematics and clinical outcome of patients with neck injury treated with spinal manipulative therapy: a pilot study.

OBJECTIVE: Finite helical axis parameters (FHAP) of the cervical spine and clinical measures were obtained to evaluate neck function and the clinical effects of spinal manipulative therapy in patients with "whiplash" (WL) type neck injury. DESIGN: Descriptive case series, 1 yr follow-up. SETTING: Three private chiropractic practices. SUBJECTS: Ten consecutive new patients with a history of neck injury, nine asymptomatic, volunteer controls. INTERVENTIONS: A 6-wk regimen of short lever manually assisted adjustments with an Activator Instrument, while acute, four patients received interferential electrotherapy. MAIN OUTCOME MEASURES: Cervical FHAP during normal movements, neck pain (visual analogue scale), active cervical range of motion and follow-up questionnaire. RESULTS: Based on six patients, the FHAPs appeared to mirror the clinical condition, being markedly deviant from the patterns observed in the control group for at least one or more of the tracking tasks for all but one of the patients. Mean pain scores decreased from 44.1 to 10.5 (t = 4.93; p < .0001) and mean total range of motion increased from 234 to 297 degrees (t = 5.68; p < .0001). At 1 yr, seven respondents noted stability of their symptoms at or near the level reported immediately after the 6-wk treatment period. CONCLUSIONS: Based on these preliminary data: a) FHAPs may aid in diagnosing and monitoring treatment of neck dysfunction, b) spinal manipulative therapy may be beneficial to some patients with neck injury and future study is warranted as a means to promote recovery of patients with neck injuries.

Adult↗

PubMed2004

[The efficiency of spinal manipulation in otorhinolaryngology. A retrospective long-term study].

BACKGROUND: The vertebral genesis of many functional disorders in otorhinolaryngology, such as dizziness, hearing-impairment, ear-pressure, ear-pain, foreign body sensation in the throat and dysphonia, is suggested by the success of spinal manipulative therapy, particularly of the atlanto-occipital joint. Up to now, there are no retrospective investigations which show the duration of the therapeutic effect. METHODS: We examined 220 patients with cervical otorhinolaryngological disorders (100 patients with dizziness, 49 with hearing impairment, 47 with tinnitus and 24 with dysphonia) after cervical manipulation lasting more than 6 months. RESULTS AND CONCLUSIONS: The extraordinary satisfaction with the manipulative therapy in 82% of patients with dizziness (46% total relief, 36% high improvement) reflects the high efficiency of this manual therapy. In contrast to these results, only 10% of patients with tinnitus showed an improvement (P<0.001). This retrospective investigation demonstrates that a successful outcome after manual therapy is not based on a "placebo effect".

Atlanto-Occipital Joint↗

PubMed1989

Spinal manipulation and headaches of cervical origin.

The role of the cervical spine in headache remains controversial. Often confused as tension or common migraine headache, headaches arising from the neck pose a diagnostic and therapeutic challenge. Practitioners of spinal manipulation have reported very satisfactory results, although the only published randomized controlled trial did not demonstrate that manipulation was significantly helpful. This article reviews the published clinical studies of manipulation in the treatment of tension and migraine headaches. The topic of cervical headaches in general is reviewed and the current model of cervicogenic headache is critiqued. A representative case history is used to illustrate the thesis that the current model of cervicogenic headache may be too restrictive. The role of spinal manipulation as a trial of therapy in individual patients is also discussed. a retrospective diagnosis of cervical headache can often be confirmed by a successful outcome.

Cervical Vertebrae↗

PubMed1999

Forces measured during spinal manipulative procedures in two age groups.

OBJECTIVE: Manipulation techniques have a prominent, yet controversial, role in the treatment of back pain. Their use varies widely between the professional groups and between individual therapists, with no accurate method of standardizing or quantifying the treatment administered. METHODS: An instrumented mobilization couch was developed to measure and characterize typical forces used during spinal manipulative therapy. The couch was used to measure the forces applied to the lumbar spine of 30 young healthy subjects during five mobilization techniques, and to a clinical sample of 31 patients, aged between 45 and 65 yr. RESULTS: The magnitudes of the mobilization forces were found to be similar for the young and the older groups. Median forces of 164 and 168 N, respectively, were recorded during a Grade III procedure. However, the forces applied to the older group exhibited a smaller amplitude and higher frequency of oscillation than those applied to the young group (P < 0.001). CONCLUSION: Objective measurements can be used to characterize manipulative forces for both evaluative and teaching purposes.

Adult↗

PubMedDate not supplied

Spinal manipulation: does it work?

This article reviews the value of spinal manipulation in treating low back pain. Although there is still little evidence by which to judge this form of treatment, there is speculation that manipulation exerts a powerful placebo effect in producing a specific but short-term benefit.

Back Pain↗

PubMed1982

Low back pain and its treatment by spinal manipulation: measures of flexibility and asymmetry.

Nineteen low back pain patients and eight patients not suffering from low back pain were given several tests of flexibility and asymmetry by two different examiners. Three criteria of reliability and validity were used: (1) significant agreement between independent observers, (2) significantly different scores in the groups with and without low back pain, and (3) significant improvement following a successful spinal manipulation. Tests of anterior flexion and asymmetry of foot eversion met only the first and second criteria while tests of hamstring tightness and asymmetry of voluntary straight leg raising met only the first and third criteria. Passive and voluntary straight leg raising tests were the only measures that met all three criteria. Therefore, of the objective tests investigated here, only passive or voluntary straight leg raising can be strongly recommended for use in the evaluation of spinal manipulative therapy for low back pain.

Adult↗