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.     

Subject Index

Abstract

Shoulder pain is a common orthopedic condition seen by physical therapists, with many potential contributing factors and proposed treatments. Although manual physical therapy interventions for the cervicothoracic spine and ribs have been investigated for this patient population, the specific effects of these treatments have not been reported. The purpose of this investigational study is to report the immediate effects of thoracic spine and rib manipulation in patients with primary complaints of shoulder pain. Using a test-retest design, 21 subjects with shoulder pain were treated during a single treatment session with high-velocity thrust manipulation to the thoracic spine or upper ribs. Post-treatment effects demonstrated a 51% (32mm) reduction in shoulder pain, a corresponding increase in shoulder range of motion (30°-38°), and a mean patient-perceived global rating of change of 4.2 (median 5). These immediate post-treatment results suggest that thoracic and rib manipulative therapy is associated with improved shoulder pain and motion in patients with shoulder pain, and further these interventions support the concept of a regional interdependence between the thoracic spine, upper ribs, and shoulder.     

Acute torticollis secondary to rupture of the sternocleidomastoid

Trauma to the neck musculature and cervical spine is frequently caused by hyperextension injuries which may result in muscular spasm or rupture. Partial rupture of the sternocleidomastoid muscle with subsequent formation of a fibrotic band is an unusual cause of acute torticollis. The case of a 21-year-old man who developed an acute torticollis and cervical pain after a motor vehicle accident is presented. Computed tomography scan demonstrated 75% rupture of the left sternocleidomastoid muscle with fibrotic band replacing the absent muscle tissue. Neck range of motion was markedly decreased. The patient underwent a trial of muscle relaxants and intensive physical therapy with no significant improvement. Surgical release of the residual fibrotic band was performed, and the left deviation of the neck was reduced from 25 degrees preoperatively to 5 degrees postoperatively. With surgical release and intensive postoperative physical therapy, the patient regained full motion and strength of the cervical spine musculature.     

The Immediate Effects of Thoracic Spine and Rib Manipulation on Subjects with Primary Complaints of Shoulder Pain

Shoulder pain is a common orthopedic condition seen by physical therapists, with many potential contributing factors and proposed treatments. Although manual physical therapy interventions for the cervicothoracic spine and ribs have been investigated for this patient population, the specific effects of these treatments have not been reported. The purpose of this investigational study is to report the immediate effects of thoracic spine and rib manipulation in patients with primary complaints of shoulder pain. Using a test-retest design, 21 subjects with shoulder pain were treated during a single treatment session with high-velocity thrust manipulation to the thoracic spine or upper ribs. Post-treatment effects demonstrated a 51% (32mm) reduction in shoulder pain, a corresponding increase in shoulder range of motion (30°-38°), and a mean patient-perceived global rating of change of 4.2 (median 5). These immediate post-treatment results suggest that thoracic and rib manipulative therapy is associated with improved shoulder pain and motion in patients with shoulder pain, and further these interventions support the concept of a regional interdependence between the thoracic spine, upper ribs, and shoulder.KEYWORDS: Manipulation, Manual Therapy, Shoulder Pain, Thoracic SpineRegional interdependence, as described by Wainner and col-leagues^1,2, “refers to the concept that seemingly unrelated impairments in a remote anatomical region may contribute to, or be associated with, the patient''s primary complaint”. This model suggests that many musculoskeletal disorders may respond more favorably to a regional examination and treatment approach that, in addition to localized treatment, encourages physical therapists to examine and treat distant dysfunctions that may be influencing the patient''s symptoms. Although the specific mechanism (whether neurophysiologic, biomechanical, or other) has yet to be elucidated, several high-quality clinical trials have demonstrated the effective use of this regional examination and treatment approach in achieving positive functional outcomes for patients with a variety of musculoskeletal disorders^3–10.Three of these studies^3–5 have investigated the effects of including cervicothoracic spine and rib manual physical therapy into an overall treatment approach for patients with shoulder pain. Winters et al⁵ found that manipulative therapy applied throughout the shoulder girdle was more effective than physiotherapy in reducing the duration of shoulder pain in a subgroup of 58 patients whose shoulder pain was attributed to dysfunctions within the cervical spine, upper thoracic spine, or upper ribs. Bang and Deyle³ reported improved outcomes in strength, function, and pain when manual physical therapy techniques for the shoulder, cervical spine, and thoracic spine were added to an exercise program for patients with shoulder impingement syndrome. In a more recent clinical trial, Bergman et al⁴ assessed the added benefit of applying cervicothoracic and rib manipulations and mobilizations to a standardized treatment regimen of anti-inflammatory and analgesic medications, corticosteroid injections, and physical therapy (exercises, massage, and modalities) for patients with shoulder pain and dysfunction. The addition of manipulative therapy to this usual medical care resulted in significant improvements in short- and long-term recovery rates and symptom severity for these subjects.Although the overall treatment effect of manual physical therapy has been demonstrated in these studies, the relative contribution of specific manipulative techniques applied to the cervical spine, thoracic spine, and/or ribs towards the improvement in functional outcomes for patients with shoulder pain cannot be determined. The purpose of this preliminary study is to report the immediate effects of thoracic and rib manipulation on subjects with primary complaints of shoulder pain. Exploratory studies of this nature are needed to help define the potential interdependence between anatomic regions such as the thoracic spine, upper ribs, and shoulder.     

Mobilizations of the asymptomatic cervical spine can reduce signs of shoulder dysfunction in adults

Generalized shoulder pain is a common problem that is difficult to treat and frequently recurrent. The asymptomatic cervical spine must be ruled out as a cause of any shoulder pain, as it can have a similar presentation to an isolated shoulder disorder. Previous studies have shown that lateral cervical glide mobilizations to the asymptomatic cervical spine at C5/6 can affect peripheral pain, but none have examined shoulder pain. A randomized, blinded, placebo-controlled, cross-over trial was used to examine the immediate effects of cervical lateral glide mobilizations on pain intensity and shoulder abduction painful arc in subjects with shoulder pain. Twenty-one subjects received interventions of both cervical mobilization and placebo over two sessions. Pain intensity using a visual analog scale (VAS) and painful arc were assessed prior to and following application of cervical mobilization or placebo intervention. Evaluation of cervical mobilization revealed the shoulder abduction painful arc (12.5 degrees +/-15.6 degrees, p=0.002) and shoulder pain intensity (1.3+/-1.1cm, p<0.001) were significantly decreased. The results of this study suggest that any immediate change in shoulder pain or active shoulder range of motion following cervical mobilizations indicate that treatment directed toward the asymptomatic cervical spine may expedite recovery.     

Decrease in elbow flexor inhibition after cervical spine manipulation in patients with chronic neck pain

OBJECTIVE: This study measured functional capacity and subjective pain in patients with chronic neck pain before and after manipulation of the cervical spine. DESIGN: Outcomes study on 16 patients with chronic neck pain. BACKGROUND: Muscle inhibition, i.e., the inability to fully activate a muscle, has been observed following joint pathologies and in low back pain conditions. Although chronic neck pain has been associated with changes in muscle recruitment and coordination in the shoulder and arms, the possibility of muscle inhibition has not been explored. METHODS: Biceps activation during a maximal voluntary elbow flexor contraction was assessed using the interpolated twitch technique and electromyography. Cervical range of motion and pressure pain thresholds were measured using a goniometer and an algometer. Manipulation of the cervical spine was applied at the level of C5/6/7, and functional assessments were repeated. RESULTS: Patients showed significant inhibition in their biceps muscles. Cervical range of motion was restricted laterally, and increased pressure pain sensitivity was evident. After cervical spine manipulation, a significant reduction in biceps inhibition and an increase in biceps force occurred. Cervical range of motion and pressure pain thresholds increased significantly. CONCLUSIONS: Significant dysfunction in biceps activation was evident in patients with chronic neck pain, indicating that this muscle group cannot be used to the full extent. Spinal manipulation decreased muscle inhibition and increased elbow flexor strength at least in the short term. RELEVANCE: Muscle inhibition in the biceps has not been previously documented in patients with chronic neck pain. Further research is needed to establish whether muscle inhibition is related to clinical symptoms and functional outcome. Spinal manipulation improved muscle function, cervical range of motion and pain sensitivity, and might therefore be beneficial for treating patients with chronic neck pain.     

Effects of sling-based manual therapy on cervicothoracic junction in patients with neck pain and forward head posture: A randomized clinical trial

ObjectiveThe purpose of this study was to investigate the effect of 4 weeks of sling-based manual therapy on the cervicothoracic junction (CTJ) area in patients with neck pain and forward head posture.DesignSingle-blind randomized controlled trial.SettingOutpatient, Chonbuk National University hospital, Republic of Korea.SubjectsA total of 22 participants with neck pain (Numeric Pain Rating Scale >3) and forward head posture (craniovertebral angle <51) were randomly assigned to a CTJ group or a control group (n = 11 each).InterventionIn the control group, joint mobilization and motor control training was applied for the upper cervical spine (C0–C1). The CTJ group applied the same intervention to the upper cervical spine and cervicothoracic junction (C7-T3).Main measuresNumeric pain rating scale and neck disability index, craniovertebral angle, active range of motion, and muscle activity were evaluated before and after 4 weeks of intervention.ResultThe CTJ group participants showed significant improvement in the craniovertebral angle and cervical extension range after the intervention than the control group (P = 0.025, P = 0.001). While both groups presented significant differences after the intervention regarding Numeric pain rating scale, neck disability index, and muscle activity (sternocleidomastoid and anterior scalene muscle), there were no statistically significant differences between the groups (P > 0.05).ConclusionOur results suggest that the CTJ and the upper cervical region in patients with neck pain and forward head posture represent an area which if approached by manual therapy, improves cervical mobility and posture.     

Multimodal Management of Mechanical Neck Pain Using a Treatment Based Classification System

Abstract

The purpose of this case study was twofold: 1) to illustrate the use of a treatment-based classification (TBC) system to direct the early intervention of a patient with mechanical neck pain, and 2) to show the progression of this patient with multimodal-modal intervention. The patient exhibited axial neck pain with referral into her upper extremity. Her pain peripheralized with cervical range of motion and centralized with joint mobilization placing her primarily in the centralization category. Her poor posture and associated muscle weakness along with the chronicity of symptoms placed her secondarily into the exercise and conditioning group resulting in a multi-modal treatment as the patient progressed. Although the design of this case report prevents wide applicability, this study does illustrate the effective use of the TBC system for the cervical spine as captured by accepted outcomes measures.     

Chiropractic care of a patient with vertebral subluxations and unsuccessful surgery of the cervical spine

OBJECTIVE: The chiropractic care of a patient with vertebral subluxations, neck pain, and cervical radiculopathy after a cervical diskectomy is described. CLINICAL FEATURES: A 55-year-old man had neck pain and left upper extremity radiculopathy after unsuccessful cervical spine surgery. INTERVENTION AND OUTCOME: Contact-specific, high-velocity, low-amplitude adjustments (i.e., Gonstead technique) were applied to sites of vertebral subluxations. Rehabilitation exercises were also used as adjunct to care. The patient reported a decrease in neck pain and left arm pain after chiropractic intervention. The patient also demonstrated a marked increase in range of motion (ROM) of the left glenohumeral articulation. CONCLUSION: The chiropractic care of a patient with neck pain and left upper extremity radiculopathy after cervical diskectomy is presented. Marked resolution of the patient's symptoms was obtained concomitant with a reduction in subluxation findings at multiple levels despite the complicating history of an unsuccessful cervical spine surgery. This is the first report in the indexed literature of chiropractic care after an unsuccessful cervical spine surgery.     

Recurrent neck pain patients exhibit altered joint motion pattern during cervical flexion and extension movements

BackgroundImpaired sensorimotor ability has been demonstrated in recurrent neck pain patients. It is however not clear if cervical joint motion and pressure pain sensitivity in recurrent neck pain patients are different from asymptomatic controls.MethodsCervical flexion and extension motions were examined by video-fluoroscopy and pressure pain thresholds were assessed bilaterally over C2/C3, C5/C6 facet joints and right tibialis anterior in eighteen recurrent neck pain patients and eighteen healthy subjects. Individual joint motion was analyzed by dividing fluoroscopic videos into 10 epochs. The motion opposite to the primary direction (anti-directional motion) and motion along with the primary direction (pro-directional motion) of each joint were extracted across epochs. Total joint motion was the sum of anti-directional and pro-directional motions. Joint motion variability was represented by the variance of joint motions across epochs.FindingsCompared to controls, recurrent neck pain patients showed: 1) decreased anti-directional motion at C2/C3 and C3/C4 (P < 0.05) and increased anti-directional motion at C5/C6 and C6/C7 (P < 0.05) during extension motion. 2) Increased overall anti-direction motion during flexion motion (P < 0.05). 3) Lower joint motion variability at C3/C4 during extension motion (P < 0.05).InterpretationRecurrent neck pain patients showed a redistribution of anti-directional motion between the middle cervical spine and the lower cervical spine during cervical extension and increased overall anti-directional motion during cervical flexion compared with healthy controls. The anti-directional motion was more sensitive to neck pain compared to other cervical joint motion parameters in the present study.     

Sitting spinal posture in adolescents differs between genders, but is not clearly related to neck/shoulder pain: an observational study

QUESTION: Is neck/shoulder pain in adolescents related to their sitting spinal posture, taking account of gender? DESIGN: Cross-sectional survey and direct observation. PARTICIPANTS: 1597 adolescents from the 'Raine' birth cohort study (781 females, 816 males) with a mean age of 14.1 years (SD 0.2). OUTCOME MEASURES: Neck/shoulder pain prevalence and gender was measured by survey. Spinal posture (7 angles) during sitting was measured from photographs. RESULTS: Life, month, and point prevalence for neck/shoulder pain among adolescents were 47%, 29%, and 5% respectively. Life prevalence was 10% higher in females than in males and month prevalence was 12% higher. When looking straight ahead, females sat with 2 degrees (95% CI 1 to 3) less neck flexion, 2 degrees (95% CI 0 to 3) less craniocervical angle, 7 degrees (95% CI 6 to 8) less cervicothoracic angle, 13 degrees (95% CI 12 to 14) less trunk angle, 10 degrees (95% CI 8 to 12) less lumbar angle, and 9 degrees (95% CI 7 to 11) more anterior pelvic tilt than males. Adolescents with neck/shoulder pain sat with 2 degrees (95% CI 1 to 3) less trunk angle, and 1 degree (95% CI 0 to 2) less cervicothoracic angle than those without pain. After controlling for gender, OR for neck/shoulder pain ever predicted by any angle ranged from 0.99 to 1.00 (range of 95% CI 0.98 to 1.01). CONCLUSION: Neck/shoulder pain is highly prevalent in Australian adolescents. Sitting spinal posture differs between males and females and differs slightly between those with and without neck/shoulder pain. However, posture was not predictive of neck/shoulder pain ever after controlling for gender.     

2. Acute cervical spine and shoulder injuries in the industrial setting

This self-directed learning module highlights the underlying anatomy and biomechanics of the cervical spine and shoulder as a basis for developing a differential diagnosis of contributing pathology in an industrial injury. This includes components of the history, examination, and appropriate diagnostic testing that are necessary to develop an optimal rehabilitation plan. Treatment options are reviewed and include medications, therapy, selective injections, and return-to-work programs in the industrial setting.Overall Article Objectives:(a) To be able to identify neck and shoulder pathology, (b) to effectively evaluate cervical spine and shoulder injuries, and (c) to rehabilitate acute cervical spine and shoulder injuries in the industrial setting.     

Immediate effects of thoracic spine self-mobilization in patients with mechanical neck pain: A randomized controlled trial

ObjectivesTo investigate the immediate effects of thoracic spine self-mobilization in patients with mechanical neck pain.Study designRandomized, controlled trial.BackgroundThoracic spine self-mobilization is performed after thoracic spine thrust manipulation to augment and maintain its effects. To the best of our knowledge, no study has investigated the effects of thoracic spine self-mobilization alone in individuals with mechanical neck pain. The purpose of this randomized, controlled trial was to evaluate the immediate effects of thoracic spine self-mobilization alone without any other intervention on disability, pain, and cervical range of motion in patients with mechanical neck pain.MethodsFifty-two patients (39 females and 13 males) with mechanical neck pain were randomly allocated to either a thoracic spine self-mobilization group that was performing a thoracic spine active flexion and extension activity using two tennis balls fixed by athletic tape or a placebo thoracic spine self-mobilization group. Outcome measures were collected at pre-intervention and immediately after intervention, including the Neck Disability Index, visual analogue scale, and active cervical range of motion (ROM). The immediate effect of the intervention was analyzed using two-way repeated measures analysis of variance (ANOVA). If interactions were found, a simple main effect test was performed to compare the pre-post intra-group results.ResultsThe results of two-way repeated measures ANOVA indicated that the main effect of time was significant (p < 0.05) for all measurement outcomes. The main effect of group was not significant for all measurement outcomes (p > 0.05). The group × time interactions for cervical flexion active ROM (p = 0.005) and cervical extension active ROM (p = 0.036) were significant. The tests of simple main effect in cervical flexion active ROM (p < 0.0001) and cervical extension active ROM (p < 0.0001) showed a significant difference before and after intervention in the thoracic spine self-mobilization group.ConclusionPatients with mechanical neck pain who carried out thoracic spine self-mobilization showed increases in active cervical flexion and extension ROM.     

Effects of cervical orthoses on neck biomechanical responses during transitioning from supine to upright

Background

Our objectives were to use a hybrid cadaveric/surrogate model to evaluate the effects of the cervicothoracic orthosis and collar on head and neck biomechanical responses during transitioning from supine to upright.

Methods

The model consisted of an adult-male surrogate dummy with its artificial neck replaced by a human neck specimen (n = 10). The model was transitioned from supine to upright using a rotation apparatus. A high-speed digital camera tracked motions of the head, vertebrae, cervicothoracic orthosis, pelvis, and rotation apparatus. Head load cell data were used to compute occipital condyle loads. Average peak spinal loads and motions were statistically compared (P < 0.05) among experimental conditions (cervicothoracic orthosis: anterior strut locked and unlocked; collar; and unrestricted).

Findings

Loads at the occipital condyles consisted of anterior shear, compression, and extension moment. The most rigid device tested, cervicothoracic orthosis with anterior strut locked, significantly reduced axial compression neck force and increased anterior shear neck force and provided the greatest immobilization by significantly reducing spinal rotations as compared to other experimental conditions. Similar neck biomechanical responses were observed between the cervicothoracic orthosis, anterior strut unlocked, and collar.

Interpretation

The simple maneuver of supine-to-upright transitioning, commonly performed clinically, produced complex neck loads and motions including head protrusion which caused cervical spine snaking. Neck motions consisted of extension at the upper cervical spine and flexion at the subaxial cervical spinal levels. Of the devices tested, the cervicothoracic orthosis, with anterior strut locked, provided the greatest cervical spine immobilization thereby reducing the risk of potential secondary neck injuries.     

Occupational therapy for accessory nerve palsy after radical neck dissection

The subjects in this study were ten patients with accessory nerve palsy after radical neck dissection. All the primary diseases that accounted for radical neck dissection were malignant tumors located at the head or neck. Every patient received occupational therapy and underwent evaluations before and after the therapy. The data we collected included the existence of resting pain and motion pain, and the active and passive range of motion during shoulder flexion and abduction. The occupational therapy programs were not adequately effective for resting and motion pain, however, every patient gained independence for activities of daily living and housekeeping activities. The occupational therapy significantly improved the patient's shoulder elevation in all movements; although, the active abduction was always significantly poor compared with flexion. In the meantime, there were no significant differences between passive shoulder flexion and abduction at all times. We can therefore understand that the accessory nerve palsy especially affects active shoulder abduction induced by the trapezius paralysis. Occupational therapy is an effective treatment for the improvement of shoulder function, however, the occupational therapy has limited effectiveness for coping with the pain.     

Clinical presentation and manual therapy for upper quadrant musculoskeletal conditions

In recent years, increased knowledge of the pathogenesis of upper quadrant pain syndromes has translated to better management strategies. Recent studies have demonstrated evidence of peripheral and central sensitization mechanisms in different local pain syndromes of the upper quadrant such as idiopathic neck pain, lateral epicondylalgia, whiplash-associated disorders, shoulder impingement, and carpal tunnel syndrome. Therefore, a treatment-based classification approach where subjects receive matched interventions has been developed and, it has been found that these patients experience better outcomes than those receiving non-matched interventions. There is evidence suggesting that the cervical and thoracic spine is involved in upper quadrant pain. Spinal manipulation has been found to be effective for patients with elbow pain, neck pain, or cervicobrachial pain. Additionally, it is known that spinal manipulative therapy exerts neurophysiological effects that can activate pain modulation mechanisms. This paper exposes some manual therapies for upper quadrant pain syndromes, based on a nociceptive pain rationale for modulating central nervous system including trigger point therapy, dry needling, mobilization or manipulation, and cognitive pain approaches.     

Impact of shoulder position and fatigue on the flexion–relaxation response in cervical spine

Background

Neck pain is common among general population with a high prevalence among the people who are routinely exposed to prolonged use of static head–neck postures. Prolonged static loading can cause localized muscle fatigue which may impact the stability of the cervical spine. In this study, flexion–relaxation phenomenon was used to study the post fatigue changes in the stability of cervical spine by evaluating the synergistic load sharing between muscles and viscoelastic elements.

Methods

Thirteen male participants were recruited for data collection. The variables that influence cervical flexion–relaxation were studied pre- and post-fatigue using neutral and shrugged shoulder postures. The Sorensen protocol was used to induce neck extensor fatigue. Surface electromyography and optical motion capture systems were used to record neck muscle activation and head posture, respectively.FindingsThe flexion–relaxation phenomenon was observed only in the neutral shoulder position pre- and post-fatigue. The flexion relaxation ratio decreased significantly post-fatigue in neutral shoulder position but remained unchanged in shrugged shoulder position. The onset and offset angles and the corresponding durations of the silence period were significantly affected by the fatigue causing a post-fatigue expansion of silence period.InterpretationThe muscular fatigue of neck extensors and shoulder position was found to modulate the cervical flexion–relaxation phenomenon. Early shifting of load sharing under fatigued condition indicates increased demands on the passive tissues to stabilize the cervical spine. Shrugging of shoulder seems to alter muscular demands of neck extensors and make cervical flexion–relaxation phenomenon disappear due to continuous activation of the neck extensors.     

Cervical injury in head trauma

Criteria for excluding cervical spine injury in patients who have sustained blunt head or neck trauma were prospectively studied at four hospitals in the Chicago area. The authors attempted to define a subset of these adult patients who, based on clinical criteria, could reliably be excluded from cervical spine radiography, thus avoiding unnecessary radiation and saving considerable time and money in their evaluation. Patients fell into four groups: (1) patients who were awake, alert, and had no complaint of neck pain or tenderness on physical examination; (2) patients who were awake, alert, but had complaint of neck pain or tenderness on physical examination laterally over the trapezius muscle only; (3) patients who were awake, alert, but had complaint of central neck pain or tenderness on physical examination over the cervical spine or center of the neck; and (4) patients who were not fully awake or alert, were clinically intoxicated, had other painful or distracting injuries, or had focal neurologic findings. Patients in group 4 had significantly more fractures (21/387) when compared with all other patients (7/478). Patients with central neck pain or tenderness (group 3) had significantly more fractures (7/237) than patients without pain or tenderness or with these findings limited to the trapezius area (0/236). It is clear that patients who have altered mental status, abnormal examination findings, distracting injury, or pain or tenderness over the cervical spine must have cervical spine radiographs.(ABSTRACT TRUNCATED AT 250 WORDS)     

Immediate effects of the central posteroanterior mobilization technique on pain and range of motion in patients with mechanical neck pain

Purpose.?To determine the immediate effects of the central posteroanterior (PA) mobilization technique on both pain and active cervical range of motion in patients with mechanical neck pain presenting with central or bilateral symptoms.

Methods.?A randomized controlled trial was conducted in 60 patients who were randomly allocated into either ‘central PA’ or ‘random’ mobilization group. Two physical therapists and one assessor participated. Outcome measures included neck pain at rest, pain on the most painful movement, and active cervical range of motion taken before and immediately 5?min after the mobilization treatment.

Results.?Significant reductions in pain at rest and on the most painful movement were noted within-group comparisons (p?<?0.001). However, the ‘central PA’ mobilization group obtained a significantly greater reduction in pain on the most painful movement than the ‘random’ mobilization group (p?<?0.05). Both mobilization techniques had no effects on the active cervical range of motion. However, the differences in the means of pain reduction between both mobilization techniques were modest (<10?mm).

Conclusion.?The clinical recommendation regarding the selection of the central PA mobilization technique for treating patients with central or bilateral mechanical neck pain is therefore arguably.