Artificial intelligence prediction of the effect of rehabilitation in whiplash associated disorder.

The active cervical range of motion (aROM) is assessed by clinicians to inform their decision-making. Even with the ability of neck motion to discriminate injured from non-injured subjects, the mechanisms to explain recovery or persistence of WAD remain unclear. There are few studies of ROM examinations with precision tools using kinematics as predictive factors of recovery rate. The present paper will evaluate the performance of an artificial neural network (ANN) using kinematic variables to predict the overall change of aROM after a period of rehabilitation in WAD patients. To achieve this goal the neck kinematics of a cohort of 1082 WAD patients (55.1% females), with mean age 37.68 (SD 12.88) years old, from across Spain were used. Prediction variables were the kinematics recorded by the EBI® 5 in routine biomechanical assessments of these patients. These include normalized ROM, speed to peak and ROM coefficient of variation. The improvement of aROM was represented by the Neck Functional Holistic Analysis Score (NFHAS). A supervised multi-layer feed-forward ANN was created to predict the change in NFHAS. The selected architecture of the ANN showed a mean squared error of 308.07-272.75 confidence interval for a 95% in the Monte Carlo cross validation. The performance of the ANN was tested with a subsample of patients not used in the training. This comparison resulted in a medium correlation with R = 0.5. The trained neural network to predict the expected difference in NFHAS between baseline and follow up showed modest results. While the overall performance is moderately correlated, the error of this prediction is still too large to use the method in clinical practice. The addition of other clinically relevant factors could further improve prediction performance.

Reliability and Responsiveness of Patient-Reported Outcome Measures of Neck Disability to Physical Therapy: Comparison of the Copenhagen, Northwick Park, and Neck Bournemouth Questionnaires and the Neck Disability Index.

OBJECTIVE: The purpose of this study was to identify the external and internal reliability and responsiveness of the validated patient-reported outcome measures (PROMs) of neck pain to a standardized regimen of physiotherapy administered acutely after mild whiplash injury using the clinically significant improvement components of the Patient Global Impression of Change (PGIC) as the outcome measure. METHODS: Eighty-six patients with neck pain alone were referred for physiotherapy within 2 weeks of whiplash injury. They completed the Copenhagen, Northwick Park (NP), and Neck Bournemouth (NBQ) questionnaires and the Neck Disability Index (NDI) before starting and after treatment when they also completed the PGIC. Treatment comprised deep soft tissue massage, myofascial releases, muscle energy techniques, joint articulation and manipulation techniques, and a home exercise program. The duration of treatment was between 3 and 6 weeks. A PGIC of 6 or 7 was considered to be clinically significant improvement. RESULTS: The external reliability of the PROMs was >0.7 and internal >0.87. All components of the PROMs contributed to the final score except headache in the Copenhagen and upper-limb dysesthesia in the NP. The most reliable questionnaire was the NBQ, which was significantly more responsive than the Copenhagen (P = .008). The NBQ was slightly more responsive than the NDI and NP. The NBQ and NDI were successfully completed more frequently than the NP and Copenhagen. CONCLUSION: The NP, NDI, and NBQ are all reliable and responsive measures of change after physiotherapy for neck pain after acute whiplash injury.

Are manual therapies, passive physical modalities, or acupuncture effective for the management of patients with whiplash-associated disorders or neck pain and associated disorders? An update of the Bone and Joint Decade Task Force on Neck Pain and Its Associated Disorders by the OPTIMa collaboration.

BACKGROUND CONTEXT: In 2008, the Bone and Joint Decade 2000-2010 Task Force on Neck Pain and Its Associated Disorders (Neck Pain Task Force) found limited evidence on the effectiveness of manual therapies, passive physical modalities, or acupuncture for the management of whiplash-associated disorders (WAD) or neck pain and associated disorders (NAD). PURPOSE: This review aimed to update the findings of the Neck Pain Task Force, which examined the effectiveness of manual therapies, passive physical modalities, and acupuncture for the management of WAD or NAD. STUDY DESIGN/SETTING: This is a systematic review and best evidence synthesis. SAMPLE: The sample includes randomized controlled trials, cohort studies, and case-control studies comparing manual therapies, passive physical modalities, or acupuncture with other interventions, placebo or sham, or no intervention. OUTCOME MEASURES: The outcome measures were self-rated or functional recovery, pain intensity, health-related quality of life, psychological outcomes, or adverse events. METHODS: We systematically searched five databases from 2000 to 2014. Random pairs of independent reviewers critically appraised eligible studies using the Scottish Intercollegiate Guidelines Network criteria. Studies with a low risk of bias were stratified by the intervention's stage of development (exploratory vs. evaluation) and synthesized following best evidence synthesis principles. Funding was provided by the Ministry of Finance. RESULTS: We screened 8,551 citations, and 38 studies were relevant and 22 had a low risk of bias. Evidence from seven exploratory studies suggests that (1) for recent but not persistent NAD grades I-II, thoracic manipulation offers short-term benefits; (2) for persistent NAD grades I-II, technical parameters of cervical mobilization (eg, direction or site of manual contact) do not impact outcomes, whereas one session of cervical manipulation is similar to Kinesio Taping; and (3) for NAD grades I-II, strain-counterstrain treatment is no better than placebo. Evidence from 15 evaluation studies suggests that (1) for recent NAD grades I-II, cervical and thoracic manipulation provides no additional benefit to high-dose supervised exercises, and Swedish or clinical massage adds benefit to self-care advice; (2) for persistent NAD grades I-II, home-based cupping massage has similar outcomes to home-based muscle relaxation, low-level laser therapy (LLLT) does not offer benefits, Western acupuncture provides similar outcomes to non-penetrating placebo electroacupuncture, and needle acupuncture provides similar outcomes to sham-penetrating acupuncture; (3) for WAD grades I-II, needle electroacupuncture offers similar outcomes as simulated electroacupuncture; and (4) for recent NAD grades III, a semi-rigid cervical collar with rest and graded strengthening exercises lead to similar outcomes, and LLLT does not offer benefits. CONCLUSIONS: Our review adds new evidence to the Neck Pain Task Force and suggests that mobilization, manipulation, and clinical massage are effective interventions for the management of neck pain. It also suggests that electroacupuncture, strain-counterstrain, relaxation massage, and some passive physical modalities (heat, cold, diathermy, hydrotherapy, and ultrasound) are not effective and should not be used to manage neck pain.

The effect of 3 different exercise approaches on neck muscle endurance, kinesiophobia, exercise compliance, and patient satisfaction in chronic whiplash.

OBJECTIVE: The purpose of this study was to compare the effects of 3 different exercise approaches on neck muscle endurance (NME), kinesiophobia, exercise compliance, and patient satisfaction in patients with chronic whiplash. METHODS: This prospective randomized clinical trial included 216 individuals with chronic whiplash. Participants were randomized to 1 of 3 exercise interventions: neck-specific exercise (NSE), NSE combined with a behavioral approach (NSEB), or prescribed physical activity (PPA). Measures of ventral and dorsal NME (endurance time in seconds), perceived pain after NME testing, kinesiophobia, exercise compliance, and patient satisfaction were recorded at baseline and at the 3- and 6-month follow-ups. RESULTS: Compared with individuals in the prescribed physical activity group, participants in the NSE and NSEB groups exhibited greater gains in dorsal NME (P = .003), greater reductions in pain after NME testing (P = .03), and more satisfaction with treatment (P < .001). Kinesiophobia and exercise compliance did not significantly differ between groups (P > .07). CONCLUSION: Among patients with chronic whiplash, a neck-specific exercise intervention (with or without a behavioral approach) appears to improve NME. Participants were more satisfied with intervention including neck-specific exercises than with the prescription of general exercise.

Predictors of outcome following a short multimodal rehabilitation program for patients with whiplash associated disorders.

BACKGROUND: Patients with whiplash associated disorders (WAD) may present with physical and psychological symptoms which persist long after the initial onset of pain. Several studies have shown that therapeutic exercise for motor and sensorimotor control combined with manual therapy in a multimodal rehabilitation (MMR) program is effective at improving pain and disability in patients with neck disorders. To date, no studies have investigated which self-reported physical or psychological symptoms are predictive of response to this MMR program. AIM: To determine which baseline features can predict outcome following a 3-week MMR program in patients with WAD. DESIGN: Observational prospective cohort study. SETTING: Outpatient rehabilitation clinic. POPULATION: Thirty-seven patients aged >18 years with a diagnosis of WAD grade II or III. METHODS: The MMR program included manual therapy, motor control and sensorimotor control training according to the clinical impairments of each patient. Patients were assessed before and after treatment for their physical and psychological symptoms by means of self-reported questionnaires. Regression models were estimated with pain intensity, disability and post-traumatic stress symptoms (PTSS) as outcomes. RESULTS: After treatment, patients exhibited significant improvements in all evaluated outcomes (all P<0.01). Regression models accounting for 35% and 36% of the variance in pain intensity outcomes included average pain intensity over the previous week and pain catastrophizing as significant predictors. Disability and pain catastrophizing were predictors of changes in disability following the MMR program explaining 49% of the variance in the model. Furthermore, higher PTSS at baseline was a significant predictor of PTSS after treatment, explaining 55% of the variance in the model. CONCLUSION: Improved outcomes on pain intensity, disability and PTSS following a MMR program could be partially predicted based on the patient's initial presentation. CLINICAL REHABILITATION IMPACT: This knowledge may assist clinicians in predicting outcome following a MMR program inclusive of specific exercise therapy and manual therapy in patients with WAD.

Osteopathic treatment of patients with long-term sequelae of whiplash injury: effect on neck pain disability and quality of life.

OBJECTIVES: The clinical sequelae and manifestation resulting from whiplash injury are defined as late whiplash syndrome (LWS). The objective of this study was to investigate whether a series of osteopathic treatments of patients with LWS may improve their symptoms. DESIGN: The study was designed as a two-phase (pre-post) clinical intervention study. In phase one, the patients received no treatment for 6 weeks; in phase two, they received five test-dependent osteopathic treatments. SETTING: Forty-two (42) patients (mean age 39 years) suffering from LWS due to car rear-end collisions were included. INTERVENTION: Five (5) individualized and custom-tailored osteopathic treatments at 1-week intervals were performed. MAIN OUTCOME MEASURES: Main outcome parameters were the neck-related pain and disability (determined by the Neck Pain and Disability Scale [NPAD]) and the quality of life (assessed on the SF-36). The presence of a post-traumatic stress disorder (PTSD) was diagnosed. RESULTS: A direct comparison between the untreated period and the treatment period revealed clinically relevant and statistically significant improvements in the osteopathic treatment period for the NPAD. In the intervention phase, the NPAD dropped from 41.5 to 26.0 points, which corresponds to an improvement of 37% (95% confidence interval=11.1-19.8; p<0.0005). For the SF-36, both the physical and the mental component summary showed a significant and substantial improvement during treatment phase (p=0.009 versus p=0.02). Prior to treatment, 17 patients (43.6%) were diagnosed with a positive PTSD; this number fell to only 6 (15.4%) during observation. CONCLUSIONS: Five (5) osteopathic treatments had a beneficial effect on the physical as well as the mental aspects of LWS and lives up to its claim of being a complementary modality in the treatment regimen of this condition. Based on these preliminary findings, rigorous randomized controlled studies are warranted.

Efectividad de la técnica de inhibición de los músculos suboccipitales sobre el test neurodinámico del nervio mediano en pacientes con whiplash: estudio piloto / Effectiveness of the suboccipital muscle inhibition technique on the neurodynamic test of the median nerve in patients with whiplash: a pilot study

Objetivos: Determinar la efectividad inmediata de la técnica de inhibición de la musculatura suboccipital (TIS) en los pacientes con whiplash cervical en el dolor percibido, en la fuerza prensil y en la respuesta de movilidad articular del codo en el test neurodinámico del nervio mediano (TNM)(en inglés Upper Limb Tension Test-ULTT-1). Material y Métodos: Se realizó un ensayo clínico simple ciego con asignación aleatoria de 18 pacientes (edad media: 30±10.35 años; 19-52 años) en dos grupos: experimental (GE:n=9) y control (GC:n=9). El GC recibe como placebo una técnica articulatoria de flexo-extensión de cadera y rodilla del lado contrario al que se toma la medición; y en el GE aplicamos la TIS. El dolor se midió con una escala analógica del dolor (EVA), la fuerza de prensión manual con un dinamómetro de mano y la amplitud articular del codo con un goniómetro. Resultados: Encontramos un aumento significativo de la movilidad del codo en el grupo experimental, comparado con el grupo control (p=0.010). No hubo diferencias entre los grupos de estudio (GE y GC) en el dolor cervical (p=0.062) ni en la fuerza prensil (p=0.067). Conclusiones: La TIS mejora la respuesta articular del codo en pacientes con whiplash cervical ante la prueba clínica de TNM (en inglés ULTT-1) (AU)

Objectives: We aim to determine the immediate effectiveness of the Suboccipital muscle Inhibition Technique (SIT) in patients with cervical whiplash regarding self-perceived neck pain, grip strength and response of the elbow joint mobility to the neurodynamic test of the median nerve (Upper Limb Tension Test - ULTT-1). Material and Methods: A randomized, single-blind, clinical trial was carried out in 18 patients (mean age: 30 ± 10.35 years;19-52 years) randomly distributed into two study groups: control (CG;n=9) and experimental (EG;n=9) group. The CG received a placebo technique consisting in a flexion/extension of hip and knee on the opposite side to which the measurement is taken. The EG was submitted to the TIS. Neck pain was measured using Visual Analogue Scale (VAS) scores, the grip strength was determined with a hand dynamometer and the elbow mobility with an universal goniometer. Results: The EG showed a statistical increase in the elbow goniometry (p = 0.01) compared with the CG. There were no differences between groups in neck pain (p = 0.062) and grip strength (p = 0.067). Conclusions: The application of the SIT to patients with whiplash improves the response of the elbow joint to the neurodynamic test of the median nerve, although it does not affect neck pain or grip strength (AU)

Association of manual muscle tests and mechanical neck pain: results from a prospective pilot study.

OBJECTIVE: To determine whether there was a statistical difference for manual muscle test (MMT) findings for cervical muscles in subjects with and without mechanical neck pain (MNP), and to use confidence intervals to evaluate the sensitivity and specificity of the MMT in this group of subjects. CLINICAL FEATURES: Manual muscle strength tests were conducted on two groups of patients who reported to two outpatient chiropractic clinics. In group 1, 148 patients were evaluated for MMT data (50 males and 98 females, average age 37), 127 with "whiplash"-type injuries (average duration 16 weeks) and 21 with non-traumatic chronic neck pain (average duration 36 weeks). In group 2, 100 patients were evaluated for comparative MMT data (39 males and 61 females, average age 38) with no current MNP or remarkable history of MNP. METHODS: Standardized MMT assessments of the strength of the sternocleidomastoid, anterior scalene, upper trapezius, and cervical extensor muscles bilaterally were performed on all subjects in groups 1 and 2. RESULTS: In group 1, 139 of 148 patients reporting neck pain also showed positive results in at least one of four MMT tests (sternocleidomastoid, anterior scalene, upper trapezius, and cervical extensors). In group 2, 30 of the 100 patients without MNP showed positive results in one or more of the four MMT tests. Confidence intervals were calculated and showed that, in terms of MMT findings, there was a significant difference between the two groups of patients. CONCLUSIONS: A symptomatic group of patients with MNP demonstrated significantly increased MMT findings in the form of reduced strength levels compared to a control group. This evidence suggests that the MMT is potentially a sensitive and specific test for evaluating cervical spine muscular impairments in patients with MNP.

Resolution of whiplash-associated allodynia following cervicothoracic thrust and non-thrust manipulation.

Whiplash injuries of the cervical spine comprise 30% of injuries reported following motor vehicle accident (MVA) and often progress to chronic painful conditions. The purpose of this case report is to describe the management of a 37-year-old female referred to physical therapy with neck and shoulder pain after whiplash injury. The patient demonstrated limited cervical and shoulder active range of motion as well as quantitative sensory testing (QST) results consistent with central nervous system sensitization. She was treated for 11 visits over a 6-week period with manual therapy and specific exercise directed to the cervicothoracic spine. Her pain decreased from 9/10 to 2/10 by the end of treatment and remained improved at 1/10 at the 6-month follow-up. Her Copenhagen Neck Functional Disability Scale decreased from 23/30 to 4/30 by the 11th visit. In addition, she demonstrated clinically significant increases in cervical active range of motion and normal somatosensation. Manual therapy of the cervicothoracic spine may be a beneficial adjunct to the standard care of patients with signs and symptoms of central sensitization after whiplash-associated disorder and primary report of neck and shoulder pain.

A systematic review of chiropractic management of adults with Whiplash-Associated Disorders: recommendations for advancing evidence-based practice and research.

UNLABELLED: The literature relevant to the treatment of Whiplash-Associated Disorders (WAD) is extensive and heterogeneous. METHODS: A Participatory Action Research (PAR) approach was used to engage a chiropractic community of practice and stakeholders in a systematic review to address a general question: 'Does chiropractic management of WAD clients have an effect on improving health status?' A systematic review of the empirical studies relevant to WAD interventions was conducted followed by a review of the evidence. RESULTS: The initial search identified 1,155 articles. Ninety-two of the articles were retrieved, and 27 articles consistent with specific criteria of WAD intervention were analyzed in-depth. The best evidence supporting the chiropractic management of clients with WAD is reported. Further review identified ways to overcome gaps needed to inform clinical practice and culminated in the development of a proposed care model: the WAD-Plus Model. CONCLUSIONS: There is a baseline of evidence that suggests chiropractic care improves cervical range of motion (cROM) and pain in the management of WAD. However, the level of this evidence relevant to clinical practice remains low or draws on clinical consensus at this time. The WAD-Plus Model has implications for use by chiropractors and interdisciplinary professionals in the assessment and management of acute, subacute and chronic pain due to WAD. Furthermore, the WAD-Plus Model can be used in the future study of interventions and outcomes to advance evidence-based care in the management of WAD.

Early aggressive care and delayed recovery from whiplash: isolated finding or reproducible result?

OBJECTIVE: To test the reproducibility of the finding that early intensive care for whiplash injuries is associated with delayed recovery. METHODS: We analyzed data from a cohort study of 1,693 Saskatchewan adults who sustained whiplash injuries between July 1, 1994 and December 31, 1994. We investigated 8 initial patterns of care that integrated type of provider (general practitioners, chiropractors, and specialists) and number of visits (low versus high utilization). Cox models were used to estimate the association between patterns of care and time to recovery while controlling for injury severity and other confounders. RESULTS: Patients in the low-utilization general practitioner group and those in the general medical group had the fastest recovery even after controlling for important prognostic factors. Compared with the low-utilization general practitioner group, the 1-year rate of recovery in the high-utilization chiropractic group was 25% slower (adjusted hazard rate ratio [HRR] 0.75, 95% confidence interval [95% CI] 0.54-1.04), in the low-utilization general practitioner plus chiropractic group the rate was 26% slower (HRR 0.74, 95% CI 0.60-0.93), and in the high-utilization general practitioner plus chiropractic combined group the rate was 36% slower (HRR 0.64, 95% CI 0.50-0.83). CONCLUSION: The observation that intensive health care utilization early after a whiplash injury is associated with slower recovery was reproduced in an independent cohort of patients. The results add to the body of evidence suggesting that early aggressive treatment of whiplash injuries does not promote faster recovery. In particular, the combination of chiropractic and general practitioner care significantly reduces the rate of recovery.

Neck collar, "act-as-usual" or active mobilization for whiplash injury? A randomized parallel-group trial.

STUDY DESIGN: Randomized, parallel-group trial. OBJECTIVE: To compare the effect of 3 early intervention strategies following whiplash injury. SUMMARY OF BACKGROUND DATA: Long-lasting pain and disability, known as chronic whiplash-associated disorder (WAD), may develop after a forced flexion-extension trauma to the cervical spine. It is unclear whether this, in some cases disabling, condition can be prevented by early intervention. Active interventions have been recommended but have not been compared with information only. METHODS: Participants were recruited from emergency units and general practitioners within 10 days after a whiplash injury and randomized to: 1) immobilization of the cervical spine in a rigid collar followed by active mobilization, 2) advice to "act-as-usual," or 3) an active mobilization program (Mechanical Diagnosis and Therapy). Follow-up was carried out after 3, 6, and 12 months postinjury. Treatment effect was measured in terms of headache and neck pain intensity (0-10), disability, and work capability. RESULTS: A total of 458 participants were included. At the 1-year follow-up, 48% of participants reported considerable neck pain, 53% disability, and 14% were still sick listed at 1 year follow-up. No significant differences were observed between the 3 interventions group. CONCLUSION: Immobilization, "act-as-usual," and mobilization had similar effects regarding prevention of pain, disability, and work capability 1 year after a whiplash injury.

Vestibular rehabilitation in a patient with whiplash-associated disorders.

Whiplash-associated disorders are characterized by multiple physical complaints after a flexion-extension trauma to the neck. They are difficult to treat, and they often result in great impact on the patient's quality of life. In this paper, the comprehensive treatment of a patient with whiplash-associated disorders is presented. The purpose is to highlight the importance of accurate diagnosis and appropriate treatment plans to improve patients' quality of life. This 23-year-old woman experienced a traffic accident which caused severely painful neck disability, numbness over bilateral upper limbs, dizziness, double vision and loss of balance. Among these symptoms, dizziness was the problem that bothered the patient most. She received a comprehensive rehabilitation program including physical modalities, trigger point injections for relief of pain, as well as a vestibular rehabilitation program, which included exercises challenging and improving her balance function, head-eye coordination exercise, visual-ocular control exercise and sensory substitution-promoting exercises. She resumed her previous full-time work after 3 weeks of treatment. This successfully treated case illustrates the importance of correct diagnosis and appropriate treatment for patients who suffer from whiplash-associated disorders.

Biomecánica del síndrome de latigazo cervical y su analogía osteopática / Biomechanics of cervical whiplash syndrome and its osteopathic analogy

El tratamiento mediante manipulaciones es una terapia antigua; sin embargo, investigaciones científicas datan desde finales de la década de los 70.Las condiciones en las cuales la manipulación es aplicada, tienden al tratamiento de síntomas tales como lumbalgias agudas y crónicas, dolor radicular, cervicalgias, algunas formas de cefalea, etc. Las diferentes técnicas osteopáticas tienen como objeto liberar adherencias, suprimir fibrosis, restablecer la función articular y producir (mediante un efecto reflexógeno) un estímulo aferente con objeto de facilitar la inhibición de la hiperactividad gamma, responsable del acortamiento crónico de la musculatura profunda que fija la disfunción vertebral. El empleo de las técnicas de manipulación y movilización a nivel cervical han sido empleadas en pacientes con síndrome de latigazo cervical; sin embargo, en el aspecto clínico desarrollado por nuestro equipo de investigación, consideramos necesario la movilización y manipulación de otras zonas afectadas. El objetivo de este artículo es analizar de forma exhaustiva la biomecánica que acontece durante un impacto trasero en el interior de un vehículo (causa más frecuente de desarrollo de síndrome de latigazo cervical) y su analogía con la patomecánica osteopática (whiplash craneosacro).A través del análisis realizado en este artículo se puede observar una analogía entre las lesiones articulares demostradas en diversos estudios y las lesiones articulares definidas desde el punto de vista osteopático (AU)

The impact of non-injury-related factors on disability secondary to whiplash associated disorder type II: a retrospective file review.

BACKGROUND: There is evidence to suggest that Whiplash Associated Disorders (WADs) are influenced by physical trauma and psychosocial factors, as well as by medicolegal and compensation systems. OBJECTIVE: To investigate the impact of noninjury related variables on self-reported disability at initial assessment among patients presenting with WAD type II injuries. DESIGN AND SETTING: We reviewed a total of 1101 consecutive files of patients presenting to a single chiropractor's office in British Columbia, Canada. We included those who met the inclusion criteria. We extracted demographic variables and noninjury related information from 33 eligible patient files. We calculated correlations between variables and created a multivariable linear regression model to evaluate their relative associations with Neck Disability Index (NDI) scores on presentation. RESULTS: Higher NDI scores on initial assessment correlated with female sex (r = 0.40, P =.02), a greater number of subsequent treatments (r = 0.44, P =.01), a higher number of providers seen before presentation (r = 0.40, P =.02), and most strongly with the involvement of a lawyer (r = 0.73, P <.01). A multivariable linear regression model found that only female sex (P =.03) and the involvement of a lawyer (P =.01) remained significantly associated with higher NDI scores on presentation (adjusted R2 = 0.68 for the model). Female sex was associated with a 10-point increase in NDI scores on presentation (beta coefficient = 10.5; 95% confidence interval [CI] 2.8-18.2), and involvement of a lawyer was associated with a 15-point increase in NDI scores on presentation (beta coefficient = 14.9; 95% CI 5.0-24.7). CONCLUSION: Our analysis of WAD type II patients in receipt of compensation found that higher self-reported disability on initial assessment was associated with female sex and in particular by retaining a lawyer. Large prospective studies are needed to establish the validity of these findings.

Randomized clinical trial of conservative treatment for patients with whiplash-associated disorders: considerations for the design and dynamic treatment protocol.

BACKGROUND: Whiplash concerns a considerable problem to health care. Available evidence from systematic reviews indicates beneficial effects of active interventions for patients with whiplash injury. In order to evaluate whether a general practitioner or a physiotherapist should provide these active interventions, we have designed a randomized clinical trial. OBJECTIVE: The purpose of this article is to present the design of the trial and to provide transparency into the dynamic treatment protocol used. PATIENTS: Patients with whiplash-associated disorders grade I and II who still have symptoms and disabilities 4 weeks after the accident. INTERVENTIONS: A dynamic treatment protocol consisting of 4 different subprotocols. The primary aim is to increase their activities and to improve their quality of life. Content and intensity of treatment are described. Outcome measures The primary outcome measures are pain and disability. The short-term effects are measured at 12 weeks and long-term effects at 1 year after the trauma. CONCLUSION: To date, generally the effect of one intervention compared to another intervention has been examined. In our opinion, this cannot be considered as usual care for physiotherapy or general practice. Therefore, a dynamic treatment protocol has been developed to structure the black box of usual physiotherapy and general practice treatment. The results of this trial will be available in 0.5 year.

Evaluation of electromagnetic fields in the treatment of pain in patients with lumbar radiculopathy or the whiplash syndrome.

Back pain and the whiplash syndrome are very common diseases involving tremendous costs and extensive medical effort. A quick and effective reduction of symptoms, especially pain, is required. In two prospective randomized studies, patients with either lumbar radiculopathy in the segments L5/S1 or the whiplash syndrome were investigated. Inclusion criteria were as follows: either clinically verified painful lumbar radiculopathy in the segments L5/S1 and a Laségue's sign of 30 degrees (or more), or typical signs of the whiplash syndrome such as painful restriction of rotation and flexion/extension. Exclusion criteria were prolapsed intervertebral discs, systemic neurological diseases, epilepsy, and pregnancy. A total of 100 patients with lumbar radiculopathy and 92 with the whiplash syndrome were selected and entered in the study following a 1:1 ratio. Both groups (magnetic field treatment and controls) received standard medication consisting of diclofenac and tizanidine, while the magnetic field was only applied in group 1, twice a day, for a period of two weeks. In patients suffering from radiculopathy, the average time until pain relief and painless walking was 8.2 +/- 0.5 days in the magnetic field group, and 11.7 +/- 0.5 days in controls p < 0.04). In patients with the whiplash syndrome, pain was measured on a ten-point scale. Pain in the head was on average 4.6 before and 2.1 after treatment in those receiving magnetic field treatment, and 4.2/3.5 in controls. Neck pain was on average 6.3/1.9 as opposed to 5.3/4.6, and pain in the shoulder/arm was 2.4/0.8 as opposed to 2.8/2.2 (p < 0.03 for all regions). Hence, magnetic fields appear to have a considerable and statistically significant potential for reducing pain in cases of lumbar radiculopathy and the whiplash syndrome.

Injury threshold: whiplash-associated disorders.

OBJECTIVES: To review current knowledge and recent concepts of the causes of injuries after minor impact automobile collisions and to acquaint those who treat these types of injuries with possible injury thresholds and mechanisms that may contribute to symptoms. DATA SOURCES: A review of literature involving mechanisms of injury, tissue tensile threshold, and neurologic considerations was undertaken. A hand-search of relevant engineering, medical/chiropractic, and computer Index Medicus sources in disciplines that cover the variety of symptoms was gathered. RESULTS: Soft-tissue injuries are difficult to diagnose or quantify. There is not one specific injury mechanism or threshold of injury. With physical variations of tissue tensile strength, anatomic differences, and neurophysiologic considerations, such threshold designation is not possible. CONCLUSIONS: To make a competent assessment of injury, it is important to evaluate each patient individually. The same collision may cause injury to some individuals and leave others unaffected. With the variability of human postures, tensile strength of the ligaments between individuals, body positions in the vehicle, collagen fibers in the same specimen segment, the amount of muscle activation and inhibition of muscles, the size of the spinal canals, and the excitability of the nervous system, one specific threshold is not possible. How individuals react to a stimulus varies widely, and it is evident peripheral stimulation has effects on the central nervous system. It is also clear that the somatosensory system of the neck, in addition to signaling nociception, may influence the control of neck, eyes, limbs, respiratory muscles, and some preganglionic sympathetic nerves.