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.     

Normal hip and knee active range of motion: the relationship to age

Abnormal joint mobility is an important factor in movement dysfunction and physical disability. Because the decision to treat impaired joint mobility in an older individual may be influenced by assumptions concerning normal range of motion (ROM) at older ages, it is important to establish population-based normative values for hip and knee ROM by age, race, and sex. This study used data from the first National Health and Nutrition Examination Survey (NHANES 1), which involved a national probability sample of persons drawn from the civilian noninstitutionalized population of the United States. Goniometric measurements of hip and knee active range of motion (AROM) were obtained from a subset of the sample consisting of 1,892 subjects. This analysis was limited to the 1,313 white and 370 black subjects. Univariate statistics, weighted by the probability of selection into the sample, were calculated for 12 sex-race-age-group-specific categories. These normal AROM values for the hip and knee calculated from this population based sample were found to differ from estimates found in textbooks by as much as 18 degrees. With one exception, normal values for all motions were lower in the oldest age group than in the youngest age group. The differences in mean AROM were generally small, ranging from 3 to 5 degrees. Only in the case of hip extension did the difference in mean AROM between the youngest and the oldest age groups constitute a decline of more than 20% of the arc of motion. With the possible exception of hip extension, this study supports the conclusion that, at least to age 74 years, any substantial loss of joint mobility should be viewed as abnormal and not attributable to aging and therefore should be treated much as it would be in a younger individual.     

Physical Therapy (92)

J eanine Yip Menck, Susan Mais Requejo, Kornelia Kulig: Thoracic spine dysfunction in upper extremity complex regional pain syndrome type 1. (University of Southern California, Los Angeles, CA) J Orthop Sports Phys Ther 2000;30:401–409. The objective of this case study was to demonstrate the importance of assessment and treatment of the thoracic spine in the management of a patient with signs and symptoms of upper extremity complex regional pain syndrome type I. The patient was a 38‐year‐old woman who suffered a traumatic injury to her left hand. Five months after the injury, she presented with severe pain, immobility of the left arm, and associated dystrophic changes. She was unable to work and needed help in some activities of daily living. The patient was treated for 3 months in 36 visits. Initial treatment consisted of cutaneous desensitization, edema management, and gentle therapeutic exercises. However, further examination indicated hypomobility and hypersensitivity of the upper thoracic spine. Joint manipulation of the T3 and T4 segments was implemented. The patient's status was monitored. Immediately after the vertebral manipulation, there was significant increase in the left hand's skin temperature and a decrease in hyperhydrosis as measured by palpation. Shoulder range of motion increased from 135º to 175° and the patient reported reduced pain. The decrease in the patient's dystrophic and allodynic symptoms permitted further progress in functional reeducation. The patient was discharged with full return to independence and initiation of a vocational training program. Conclude that the assessment and treatment of the thoracic spine should be considered in patients with upper extremity complex regional pain syndrome type I. Comment by Karen Crawford, RPT. This is a study demonstrating the importance of assessment of the thoracic spine to manage patients with signs and symptoms of upper extremity complex regional pain syndrome type I (CRPS‐I). The patient was a 38‐year‐old female with traumatic injury to the left hand. The purpose of this study is to determine the relation between distal symptoms of CRPS‐I and the thoracic spine and to describe the use of thoracic spine manipulation in the management of patients with CRPS‐I in the upper extremity. CRPS‐I in the upper extremity often exhibits postural deviations associated with protective positioning of the arm. It emanates as trunk motion during upper activities and may present with decreased thoracic intervertebral mobility. This study believes that the evaluation and treatment in areas proximal to a patient's symptoms in CRPS‐I may be necessary. Hypomobility secondary to abnormal posturing and anatomical proximity of the sympathetic ganglions to the thoracic spine may contribute to the link between upper quadrant CRPS‐I and thoracic joint dysfunction. In the study, a 38‐year‐old, left‐hand dominant, female who sustained trauma to her left wrist and hand while at work was seen in physical therapy for a total of 36 visits. Initial treatment consisted of desensitization, edema management, and general therapeutic exercises. Further examination indicated hypomobility and hypersensitivity of the upper thoracic spine. At that time, joint manipulation of T3 and T4 segments was implemented. The patient's status was monitored and range of motion, strength, temperature, and skin moisture were measured. The patient reported minimal changes in her status, and 1 month into treatments, she hit her left hand on a door and consequently discontinued therapy because of increased pain. Five months after the initial injury, patient was reevaluated. She then received physical therapy 3 times per week for 12 weeks and was discharged with significant improved functional status. At the initial examination, the diagnosis of CRPS‐I was based on the IASP Committee on Taxonomy. The initial treatment objective was pain management and edema control. The long‐term goal was return to a functional status. Initial treatment consisted of gentle active and passive wrist and finger range of motion and tubagrip for edema management. A home program desensitization was implemented. The patient's active participation in therapy was limited secondary to her willingness to move her left arm. Treatment 2 included evaluation and manipulation of the upper thoracic spine. Her clinician used her manipulating hand as a fulcrum by placing it under the supine patient at the level of thoracic joint dysfunction. A thrust was delivered through the patient's folded arms as she exhaled and there as an audible click. There was an immediate normalization of skin temperature, color, as well as significantly decreased allodynic response to light touch along the left arm and the left upper thoracic vertebral column. Segmental thoracic mobility was immediately improved and there was immediate increase in shoulder flexion after this treatment. This reduction of signs and symptoms of CRPS‐I made it possible to proceed with functional rehabilitation. Manipulation of the thoracic spine may have resulted in improvements in distal upper extremity pain, skin color, and temperature in a patient with CRPS‐I. One explanation is that disuse of the arm and abnormal posturing may contribute to thoracic hypomobility. The anatomic proximity of the sympathetic chain to the dysfunctional thoracic joints may predispose the ganglions to mechanical pressure. Therefore, it is concluded that the evaluation and treatment of areas proximal to the patient's symptoms are necessary. It is difficult to identify the mechanism responsible for changing distal symptoms after thoracic manipulation. The immediate increase in shoulder flexion after manipulation is likely due to mechanical change in the tissue. In conclusion, this study describes a link between the thoracic spine and distal symptoms in patients with CRPS‐I. Thoracic joint manipulation appeared to improve spinal mobility, and also appeared to relieve distal and autonomic symptoms. These improvements allowed for functional rehabilitation of the effected arm. Therefore, it is the opinion of the study that the mobility of the thoracic spine should be evaluated for patients with autonomic dysfunction diagnosed with CRPS‐I. The research also indicates a need for further research to define the relationship between neurogenic symptoms and musculoskeletal pathology.     

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

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

The efficacy of cervical/thoracic active range of motion for detecting changes associated with individuals receiving muscle energy techniques

Abstract

Background: Muscle energy techniques (METs) have been used to treat cervical and thoracic range of motion (ROM) restrictions for over 40 years. Of the trials published on METs, most have examined the effectiveness of METs on ROM in the cervical and thoracic spine.

Objectives: The aim of this systematic review was to investigate the sensitivity of cervical and thoracic rotation active range of motion, as an objective measure of function, for detecting changes associated with individuals receiving METs compared to (1) individuals receiving no treatment and (2) individuals receiving manipulation.

Methods: Relevant databases were searched from January 1970 up to March 2010. Methodological quality of each included study was assessed using the PEDro scale. Effect sizes (Hedges' g) and their 95% confidence intervals were calculated for active rotation ROM scores between and within the MET and comparison groups.

Results: Five randomized controlled trials were included in this review. Four studies addressed the first clinical question and one study answered the second. The average PEDro score was 5.8. In general, between and within group effect sizes were moderate to strong in favour of METs.

Conclusion: There is fair evidence that cervical and thoracic active range of motion is sensitive to changes associated with individuals who receive an MET. The change in ROM was associated with asymptomatic individuals having restricted rotation. Further studies with higher methodological quality are needed to make a stronger clinical conclusion about the effectiveness of METs.     

Use of thoracic spine manipulation in the treatment of adhesive capsulitis: a case report

Abstract

Adhesive capsulitis (AC) is a common and disabling shoulder condition seen in physical therapy, and there is no clear consensus as to the best treatment approach. Recently there has been emerging evidence that manual therapy directed at the thoracic spine may be beneficial for patients with shoulder pain; however, this has not been examined specifically in patients with AC. The purpose of this paper is to present the case of 59-year-old female referred to physical therapy with a diagnosis of AC. The patient presented with complaints of left shoulder pain and significant limitations in range of motion (ROM) and upper extremity function. The initial treatment included exercises and manual therapy directed at the glenohumeral and scapulothoracic joints, and after 10 visits only minimal progress had been made. Further examination revealed mobility and ROM deficits in the thoracic spine, and manual therapy directed at this region was incorporated into her treatment. After the first session of thoracic spine manual therapy (TSMT) a 25 degree improvement was noted in active shoulder flexion. After four total visits of TSMT substantial improvements in pain, ROM, and function were noted compared to those made during the first 10 visits. This case adds to the emerging evidence that manual therapy directed at the thoracic spine should be considered for patients with shoulder pain.     

An immediate effect of axial neck rotation training with real time visual feedback using a smartphone inclinometer on improvement in axial neck rotation function

Objectives: The purpose of this study was to compare the immediate effects of axial neck rotation training (Axi-NRT) with and without real-time visual feedback (VF) using a smartphone inclinometer on the range of motion (ROM) for axial neck rotation and the onset of compensatory neck lateral bending and extension during active neck rotation.Methods: Twenty participants with restricted ROM for neck rotation but no neck pain (21.1 ± 1.6 years and 8 males, 12 females) were recruited for Axi-NRT with VF, and twenty age- and gender-matched participants with restricted ROM for neck rotation were recruited for Axi-NRT without VF. Changes in ROM for neck rotation and the onset time of compensatory neck movement during active neck rotation were measured using an electromagnetic tracking system. Results: Axi-NRT with VF was more effective in increasing ROM for neck rotation and decreasing and delaying the onset of compensatory neck movements during active neck rotation compared with Axi-NRT without VF. Conclusions: Repeated Axi-NRT using VF is useful to educate participants in maintaining the axis of the cervical spine and to increase ROM for axial neck rotation with less compensatory neck motion in participants with a restricted range of neck rotations.     

The Effect of Thoracic Spine Mobilization On Lower Trapezius Strength Testing

Abstract

Evidence has shown that muscle strength and function become altered due to motion restrictions. Strengthening muscles with traditional therapeutic exercise will not be completely successful unless inhibition is removed by restoring normal joint mechanics. This study investigated the effect of Grade-IV thoracic spine mobilizations on lower trapezius strength testing in normal subjects. The mobilization for the treatment group (n=20) consisted of posterior-anterior (P-A) oscillations performed from T6-T12 at each segment's end range (Grade-IV). This technique is aimed at restoring normal joint play. The control group (n=20) received a Grade-I mobilization consisting of P-A oscillations performed at the beginning of the joint's range, which is not expected to have articular reflexogenic effects. Before and after the mobilizations, isometric muscle strength of the lower trapezius was measured using a Nicholas Manual Muscle Tester. An independent group t-test comparing the groups demonstrated a statistically significant effect of thoracic spine mobilization on lower trapezius strength testing (P<.05).     

Lumbar spine side bending is reduced in end range extension compared to neutral and end range flexion postures

Lumbar side bending movements coupled with extension or flexion is a known low back pain (LBP) risk factor in certain groups, for example, athletes participating in sports such as hockey, tennis, gymnastics, rowing and cricket. Previous research has shown that sagittal spinal postures influence the degree of spinal rotation, with less rotation demonstrated at end of range extension and flexion. To date it is unknown whether sagittal spinal postures influence side bending. The aim of this study was to determine whether side bend range of motion (ROM) of the lumbar spine is decreased in end-range flexion and extension postures compared to a neutral spine. Twenty subjects between 18 and 55 years of age [mean age = 22.8 yrs (6.8)] with no history of LBP were recruited for this study. Upper (L1–L3) and lower (L3–L5) lumbar side bend, were measured utilising a 14 camera system (Vicon, Oxford metrics, inc.) in end-range flexion, extension and neutral postures, in both sitting and standing positions. The results revealed no statistically significant difference in upper and lower lumbar side bend ROM in an end-range flexion posture compared to a neutral spinal posture. A reduction was found in the range of upper and lower lumbar side bend ROM in an end-range extended posture (p < 0.05), compared to neutral and end range flexion postures. This ROM reduction was found in sitting and standing. These findings allow clinicians to better interpret combined movements involving side bending of the lumbar spine in clinical and real life settings.     

The Effects of Thoracic Manipulation Versus Mobilization for Chronic Neck Pain: a Randomized Controlled Trial Pilot Study

[Purpose] To investigate effects of thoracic manipulation versus mobilization on chronic neck pain. [Methods] Thirty-nine chronic neck pain subjects were randomly assigned to single level thoracic manipulation, single level thoracic mobilization, or a control group. The cervical range of motion (CROM) and pain ratings (using a visual analog scale: VAS) were measured before, immediately after and at a 24-hour follow-up. [Results] Thoracic manipulation significantly decreased VAS pain ratings and increased CROM in all directions in immediate and 24-hour follow-ups. The thoracic mobilization group significantly increased in CROM in most directions at immediate follow-up and right and left rotational directions at the 24-hour follow-up. Comparisons between groups revealed the CROM for the manipulation group to increase significantly more than for control subjects in most directions at immediate follow-up and flexion, left lateral flexion and left rotation at the 24-hour follow-up. The CROM for the thoracic mobilization group significantly increased in comparison to the control group in flexion at immediate follow-up and in flexion and left rotation at the 24-hour follow-up. [Conclusion] The study demonstrated reductions in VAS pain ratings and increases in CROM at immediate and 24-hour follow-ups from both single level thoracic spine manipulation and thoracic mobilization in chronic neck pain.Key words: Single level thoracic manipulation, Single level thoracic mobilization, Chronic neck pain     

Reliability and Measurement error of Active Knee extension Range of Motion in a Modified slump Test Position: A Pilot study

Abstract

The slump test is a tool to assess the mechanosensitivity of the neuromeningeal structures within the vertebral canal. While some studies have investigated the reliability of aspects of this test within the same day, few have assessed the reliability across days. Therefore, the purpose of this pilot study was to investigate reliability when measuring active knee extension range of motion (AROM) in a modified slump test position within trials on a single day and across days. Ten male and ten female asymptomatic subjects, ages 20–49 (mean age 30.1, SD 6.4) participated in the study. Knee extension AROM in a modified slump position with the cervical spine in a flexed position and then in an extended position was measured via three trials on two separate days. Across three trials, knee extension AROM increased significantly with a mean magnitude of 2° within days for both cervical spine positions (P>0.05). The findings showed that there was no statistically significant difference in knee extension AROM measurements across days (P>0.05). The intraclass correlation coefficients for the mean of the three trials across days were 0.96 (lower limit 95% CI: 0.90) with the cervical spine flexed and 0.93 (lower limit 95% CI: 0.83) with cervical extension. Measurement error was calculated by way of the typical error and 95% limits of agreement, and visually represented in Bland and Altman plots. The typical error for the cervical flexed and extended positions averaged across trials was 2.6° and 3.3°, respectively. The limits of agreement were narrow, and the Bland and Altman plots also showed minimal bias in the joint angles across days with a random distribution of errors across the range of measured angles. This study demonstrated that knee extension AROM could be reliably measured across days in subjects without pathology and that the measurement error was acceptable. Implications of variability over multiple trials are discussed. The modified set-up for the test using the Kincom dynamometer and elevated thigh position may be useful to clinical researchers in determining the mechanosensitivity of the nervous system.     

Immediate Effects of Thoracic Spine Manipulation Upon Shoulder Functionality in Patients With Sutured Rotator Cuff Repair: A Prospective Study

Objectives

The purpose of this study was to evaluate the immediate effect of thoracic spine manipulation upon active flexion and abduction mobility of the shoulder, spine temperature, and the size of the subacromial space as measured by ultrasound in 3 positions (internal, neutral, and external rotation) of the glenohumeral joint in patients who have undergone surgery because of subacromial impingement.

Use of thoracic spine manipulation in the treatment of adhesive capsulitis: a case report

Adhesive capsulitis (AC) is a common and disabling shoulder condition seen in physical therapy, and there is no clear consensus as to the best treatment approach. Recently there has been emerging evidence that manual therapy directed at the thoracic spine may be beneficial for patients with shoulder pain; however, this has not been examined specifically in patients with AC. The purpose of this paper is to present the case of 59-year-old female referred to physical therapy with a diagnosis of AC. The patient presented with complaints of left shoulder pain and significant limitations in range of motion (ROM) and upper extremity function. The initial treatment included exercises and manual therapy directed at the glenohumeral and scapulothoracic joints, and after 10 visits only minimal progress had been made. Further examination revealed mobility and ROM deficits in the thoracic spine, and manual therapy directed at this region was incorporated into her treatment. After the first session of thoracic spine manual therapy (TSMT) a 25 degree improvement was noted in active shoulder flexion. After four total visits of TSMT substantial improvements in pain, ROM, and function were noted compared to those made during the first 10 visits. This case adds to the emerging evidence that manual therapy directed at the thoracic spine should be considered for patients with shoulder pain.     

Effect of hair and clothing on neck immobilization using a cervical collar

An important step during spine immobilization is application of a cervical collar. Clothing or hair covering the neck may impinge on this process. The purpose of this study was to evaluate the effect of clothing and hair covering the neck on immobilization using a cervical collar. Study participants were 18 female volunteers with long hair aged 20 to 28 years. Cervical range of motion (ROM) was tested in 6 directions (flexion, extension, right and left lateral bending, right and left axial rotation) using a cervical ROM (CROM) device. After measuring unrestricted ROM (no cervical collar), a 1-piece rigid cervical collar was placed the neck (1) covered by hair and clothing; (2) covered by clothing; (3) covered by hair; or (4) uncovered. Range of motion was retested under all 4 conditions. Data were compared using crossover-design analysis of variance (P<.05 statistically significant). Range of motion in all directions was significantly restricted by cervical collar placement under all conditions. Unrestricted ROM in all directions ranged from 41.50 degrees (7.25 degrees) to 70.76 degrees (15.4 degrees). In contrast, ROM with a cervical collar under the 4 conditions in all directions ranged from 10.80 degrees (5.10 degrees) to 18.81 degrees (7.37 degrees). We were unable to detect any significant differences in ROM between the 4 conditions. Our data suggest that long hair and clothing, which cover the neck, do not alter the effectiveness of cervical collar immobilization as measured by the cervical ROM device.     

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.     

Cervical coupling during lateral head translations creates an S-configuration

OBJECTIVE: To determine cervical coupling during the posture of lateral head translation relative to a fixed thoracic cage. DESIGN: Digitized measurements from anteroposterior cervical radiographs of 20 volunteers were obtained in neutral, left, and right lateral translation posture of the head compared to a fixed thorax. BACKGROUND DATA: Clinically, lateral translation of the head is a common posture. Ranges of motion and spinal coupling have not been reported for this movement. METHODS: Vertebral body corners, mid-lateral articular pillars and the superior spinous-lamina junction of C3-T4 were digitized on 60 radiographs. Using the orthogonal axis of positive x-direction to the left, vertical as positive y and anterior as positive z, digitized points were used to measure projected segmental z-axis rotation, y-axis rotation, and segmental lateral translations of each vertebra. RESULTS: Subjects translated their heads laterally a mean of 51 mm. The major coupled motion was lateral bending (z-axis rotation), which changed direction at the C4-C5 disc space creating an S-shape. Upper cervical (C3-C4) lateral bending was contralateral to the main motion of head translation direction. Lower cervical and upper thoracic lateral bending were ipsilateral. Other segmental motions averaged less than 1 mm and 1 degrees. CONCLUSIONS: Lateral head translations (x-axis) compared to a fixed thoracic cage can be large with a mean of 51 mm to one side. The major spinal coupling was lateral bending which changed direction at C4-C5 resulting in an S-configuration. This might have application in side impacts. All other segmental movements were small, less than 1 mm and 1 degrees. RELEVANCE: The clinically common posture of lateral head translation results in an S-shaped cervical spine and may occur in side impact trauma. This posture has not been studied for cervical coupling patterns or range of motion (ROM).     

Inter-tester reliability of passive intervertebral and active movements of the cervical spine

Measurements of active range of motion (AROM) and passive intervertebral movements (PIM) of the cervical spine are frequently used for patients with neck pain. However, there is a paucity of studies that investigate the psychometric properties of these measurements. Objectives of this study were to: (1) determine the inter-tester reliability of PIM, AROM, and the effects of AROM on symptom provocation; (2) establish the minimal detectable change (MDC) in cervical AROM; and (3) determine the association between AROM and disability. Thirty subjects (age 41+/- 12) with neck pain participated in this study. Two masked examiners performed the measurements during the same testing session. PIM was assessed manually and recorded as hypomobile or normal. AROM was measured in degrees with a gravity goniometer. The effect of AROM on patient's symptoms was recorded as no change, decreased, increased, centralization, or peripheralization. Measures of AROM had moderate to substantial reliability (.78 - .91) and resulted in a MDC adequate for clinical use (from 9 degrees to 16 degrees). The effect of AROM on symptom provocation resulted in Kappa values that ranged from slight to substantial (.25 - .87). Measures of PIM resulted in substantial and moderate reliability of assessing occipital-atlas mobility, tenderness of the transverse processes of atlas, and symptom provocation during PIM testing of the lower cervical segments. Fair Kappa values were observed during judgment of mobility in the C2 segment and symptom reproduction during PIM of C2 and C5. The additional PIM had Kappa values that ranged from none to slight. Low prevalence of positive findings likely resulted in an artificial deflation of the Kappa statistic during some PIM measures. Measures of AROM in saggital and transverse planes were associated with disability scores (r = .43 and .40, respectively). Findings are relevant to the planning of future studies to establish the criterion validity of these tests to guide the selection of interventions and establish prognosis in patients with neck pain.     

Inclusion of thoracic spine thrust manipulation into an electro-therapy/thermal program for the management of patients with acute mechanical neck pain: a randomized clinical trial

Our aim was to examine the effects of a seated thoracic spine distraction thrust manipulation included in an electrotherapy/thermal program on pain, disability, and cervical range of motion in patients with acute neck pain. This randomized controlled trial included 45 patients (20 males, 25 females) between 23 and 44 years of age presenting with acute neck pain. Patients were randomly divided into 2 groups: an experimental group which received a thoracic manipulation, and a control group which did not receive the manipulative procedure. Both groups received an electrotherapy program consisting of 6 sessions of TENS (frequency 100Hz; 20min), superficial thermo-therapy (15min) and soft tissue massage. The experimental group also received a thoracic manipulation once a week for 3 consecutive weeks. Outcome measures included neck pain (numerical pain rate scale; NPRS), level of disability (Northwick Park Neck Pain Questionnaire; NPQ) and neck mobility. These outcomes were assessed at baseline and 1 week after discharge. A 2-way repeated-measures ANOVA with group as between-subject variable and time as within-subject variable was used. Patients receiving thoracic manipulation experienced greater reductions in both neck pain, with between-group difference of 2.3 (95% CI 2-2.7) points on a 11-NPRS, and perceived disability with between-group differences 8.5 (95% CI 7.2-9.8) points. Further, patients receiving thoracic manipulation experienced greater increases in all cervical motions with between-group differences of 10.6 degrees (95% CI 8.8-12.5 degrees) for flexion; 9.9 degrees (95% CI 8.1-11.7 degrees) for extension; 9.5 degrees (95% CI 7.6-11.4 degrees) for right lateral-flexion; 8 degrees (95% CI 6.2-9.8 degrees) for left lateral-flexion; 9.6 degrees (95% CI 7.7-11.6 degrees) for right rotation; and 8.4 degrees (95% CI 6.5-10.3 degrees) for left rotation. We found that the inclusion of a thoracic manipulation into an electrotherapy/thermal program was effective in reducing neck pain and disability, and in increasing active cervical mobility in patients with acute neck pain.     

Stabilizing effect of the rib cage on adjacent segment motion following thoracolumbar posterior fixation of the human thoracic cadaveric spine: A biomechanical study

BackgroundAlthough the rib cage provides substantial stability to the thoracic spine, few biomechanical studies have incorporated it into their testing model, and no studies have determined the influence of the rib cage on adjacent segment motion of long fusion constructs. The present biomechanical study aimed to determine the mechanical contribution of the intact rib cage during the testing of instrumented specimens.MethodsA cyclic loading (CL) protocol with instrumentation (T4–L2 pedicle screw-rod fixation) was conducted on five thoracic spines (C7–L2) with intact rib cages. Range of motion (±5 Nm pure moment) in flexion-extension, lateral bending, and axial rotation was captured for intact ribs, partial ribs, and no ribs conditions. Comparisons at the supra-adjacent (T2–T3), adjacent (T3–T4), first instrumented (T4–T5), and second instrumented (T5–T6) levels were made between conditions (P ≤ 0.05).FindingsA trend of increased motion at the adjacent level was seen for partial ribs and no ribs in all 3 bending modes. This trend was also observed at the supra-adjacent level for both conditions. No significant changes in motion compared to the intact ribs condition were seen at the first and second instrumented levels (P > 0.05).InterpretationThe segment adjacent to long fusion constructs, which may appear more grossly unstable when tested in the disarticulated spine, is reinforced by the rib cage. In order to avoid overestimating adjacent level motion, when testing the effectiveness of surgical techniques of the thoracic spine, inclusion of the rib cage may be warranted to better reflect clinical circumstances.