Explore (NY) 2009 (Sep–Oct); 5 (5): 290–295 ~ FULL TEXT
Alcantara J, Ohm J, Kunz D.
International Chiropractic Pediatric Association,
Media, PA, USA.
BACKGROUND: With continued popularity of complementary and alternative medicine (CAM) therapies for children, their safety and effectiveness are of high concern for both CAM and conventional therapy providers. Chiropractic is the most popular form of practitioner-based CAM therapies for children.
OBJECTIVE: The objective of this study was to describe the practice of pediatric chiropractic, including its safety and effectiveness. DESIGN: This study used a cross-sectional survey.
SETTING: A practice-based research network was used for this study.
PATIENTS/PARTICIPANTS: Participants were chiropractors and parents of pediatric patients (aged < or =18 years) attending chiropractic visits ranging from one to 12 visits.
INTERVENTION: This is a survey study. No interventions were rendered in the completion of this study.
MAIN OUTCOME MEASURES: Demographics, clinical presentations, treatment-associated aggravations, complications and improvements.
RESULTS: The indicated primary reason for chiropractic care of children was "wellness care." With respect to condition-based presentations, musculoskeletal conditions were the most common, in addition to nonmusculoskeletal conditions of childhood. The most common techniques used were diversified technique, Gonstead technique, Thompson technique, and activator methods. Treatment-associated complications were not indicated by the chiropractic and parent responders. Chiropractor responders indicated three adverse events per 5,438 office visits from the treatment of 577 children. The parent responders indicated two adverse events from 1,735 office visits involving the care of 239 children.
CONCLUSIONS: Both sets of responders indicated a high rate of improvement with respect to the children's presenting complaints, in addition to salutary effects unrelated to the children's initial clinical presentations.
From the FULL TEXT Article:
Contemporaneous with the ever-expanding use of complementary and alternative medicine (CAM) by adults is the burgeoning
interest in CAM therapies for children. Eisenberg et al  determined that CAM utilization by adults increased from 34% in the
early 1990s to 42% in the late 1990s. During this same time period, CAM pediatric utilization increased from 11% to 20%. 
Of the array of CAM therapies available to children, chiropractic is the most popular practitioner-based CAM therapy [3, 4] and is
referred to as pediatric chiropractic.  Pediatric visits for CAM treatment are for a wide range of disorders, including pain, respiratory and gastrointestinal tract problems, ear infections, enuresis, and hyperactivity, among others. [4, 6] A study by Lee et al  characterizing the chiropractic care of children extrapolated that 30 million pediatric patient visits were made to chiropractors in 1997 at a cost of approximately $1 billion, with parents paying some $510 million out of pocket.
Given its continuing popularity, pediatric chiropractic therefore represents a substantial and significant aspect of CAM therapy for children. In a discussion of the evidence for safety and effectiveness of manual therapy for children, Huijbregts  pointed out that there is no clear evidence of harm to date. Considering the diversity of approaches in pediatric spinal manipulative therapy (SMT), research on outcome and harm for one treatment approach cannot and should not be applied to all. The safety of chiropractic care in general and the treatment of children in particular continue to generate controversy and debate. [8, 9] The results of this study, and a careful reading of the literature to date, suggest that in general, SMT for children is extremely safe.
This study was approved by the Institutional Review Board of
Life University, Atlanta, Georgia. The study was approved for
implementation for a period of one year beginning September
An e-mail invitation was sent out to 2,099 chiropractors to participate
in the International Chiropractic Pediatric Association
(ICPA) practice-based research network (PBRN) program. The
purpose of this study was to evaluate the safety and effectiveness
of pediatric chiropractic. Inclusion criteria for participation in
the PBRN were
(a) the chiropractor must be in good standing with the Board of Chiropractic Examiners in his/her state,
(b) they must agree to the terms of participation as an ICPA PBRN
participant (ie, PBRN participation must not be used for practice
building or marketing, in addition to maintaining patient confidentiality
and informed consent), and
(c) that the subject of
interest (ie, pediatric patients aged ≤18 years) must have received
SMT care ranging from one to 12 visits.
chiropractor was encouraged to invite the parents of pediatric
patients to participate in a similar survey examining the chiropractic
care rendered to their child.
Survey Content: Chiropractic Survey
The survey instrument was pilot tested with 15 chiropractors and
changes made as appropriate prior to implementing the study.
Data extracted from the patient file included geographical data
such as gender, age, and the number of visits at the time of file
review. Furthermore, this study examined the presenting complaints
and the approach to patient care (ie, the chiropractic
SMT technique applied and the spinal region or regions SMT
was rendered). The chiropractors were also asked to document
treatment-associated changes such as aggravations, complications,
or improvements. Treatment-associated aggravations were
defined as worsening of symptoms or complaints following
treatment. Treatment-associated complications were operationally
defined as cerebrovascular accidents, dislocation, fracture,
pneumothorax, sprains and strains, or death as a result of
treatment. Treatment-associated improvements were defined
as improvement in symptoms or other reported perceived
benefits attributed to treatment. The treatment-related aggravations,
complications, and improvements were based on
subjective reports by the patient or the patient’s parents/
guardians or from the examination findings on the part of the
Survey Content: Parent Survey
The survey instrument was pilot tested with 15 parents/guardians,
with changes made as appropriate prior to implementation.
Parent/guardian data include age, gender, and level of education.
With respect to their child, information extracted includes
gender, age, and the number of visits attended. As in the chiropractor
survey, this study examined the types of presenting complaints
as well as treatment-associated changes such as aggravations,
complications, or improvements.
Data was entered in a Portable Document Format (PDF) through
Adobe Reader (Adobe Systems, San Jose, CA). From this PDF,
an Extensible Markup Language (XML) file was created containing
the data entered in the original form. Using Adobe Acrobat,
the XML files were converted to a single comma separated value
(.csv) file, which was exported to a spreadsheet (Excel, Microsoft
Corporation, Redmond, WA) and analyzed using descriptive
The data reported herein was derived from a total of 21 chiropractors
contributing 577 pediatric clinical cases. All patients
received chiropractic SMT at each visit (N = 5,438 office visits).
The cohort of pediatric patients ranged in age from less than a
day to 18 years, with an average age of 7.45 years (median age = seven years; mode age = one year). The gender distribution was
273 females and 304 males. The average number of office visits
completed during the time of the survey was 9.4 (median = 12;
mode = 12). A majority of the patients reported upon were
existing patients returning for care with new complaints (n = 476; 82.4% of cohort), whereas 94 (16.2% of cohort) were new
Of the 577 patients, 46% (n = 267) were reported as presenting
for “wellness care.” Twenty-five percent of these (n = 67) also indicated a concurrent specific complaint (eg, colic) that was included in the analysis of the various pediatric
For the 577 patients, the categories for clinical presentation/care were
wellness care (46%);
musculoskeletal complaints (26%);
digestion/elimination problems (7%);
ear, nose, and throat problems (6%);
neurological problems (6%);
immune dysfunction (5%); and
With respect to the spinal regions addressed, regardless of
clinical presentation, 77 patients received full spine SMT
care, whereas 500 patients received regional spinal care. Full
spine care denotes that SMT was applied to the cervical, thoracic,
and lumbosacral spine at each visit. Regional care denotes
the patient receiving SMT at one or two spinal regions
(ie, cervical and thoracic spine or thoracic and lumbosacral
spine). Additionally, 468 patients received some form of cranial
care, regardless of full spine or regional spinal care. When
examining the specific spinal regions rendered SMT (regardless
of whether a patient received full spine or only regional
care), 509 patients received SMT to the cervical spine, 550
patients received SMT to the thoracic spine, and 524 received
SMT to the lumbosacral region.
The primary and most common chiropractic SMT technique
used by the chiropractors in rendering care were
diversified technique (n = 334),
Gonstead technique (n = 58),
Thompson technique (n = 57),
activator methods (n = 43),
cranial technique (n = 23),
torque release technique (n = 6),
and other (n = 55), with n = 1, not indicated.
Descriptions of these techniques are provided in Table 1. [10, 11]
With respect to treatment-associated aggravations, complications,
and improvements, these were not mutually exclusive
for each patient. From 5,438 visits where SMT was rendered
at each visit, there were three separate reports of
treatment-associated aggravations. These were reported as
“muscle stiffness,” “spine soreness through the seventh visit,”
and “stiff and sore” after SMT to the first cervical vertebrae.
The attending chiropractor’s response to the treatment-associated
aggravations was to address the complaint by following
a course of care consisting of a reexamination and application
of a different SMT technique, modification of the
SMT technique rendered, or modification of the spinal segment
that was rendered the SMT. No treatment-related complications were reported by the patients or their parents/
Of the 577 clinical cases, the respondent chiropractors reported
518 patients as experiencing an improvement in their
presenting complaint, attributed to the care they received.
The data were provided by 239 parents reporting on a similar
number of children. The parents ranged in age from 20 to 51
years, with an average age of 35.58 years (median = 34 years;
mode = 33 years). With respect to gender, there were 222 females
and 16 males, with one not indicating.
Based on their
reported levels of education,
7 had PhDs,
29 had Master’s degrees,
73 were baccalaureates,
35 had college certification,
61 had “some college,”
26 were high school graduates,
three had “some high school,” and
five did not indicate level of education.
Of the 239 children, 113 were female and 119 were male, with
seven genders not indicated. They ranged in age from less than a
day to 18 years. Their average age was 6.16 years (median !
4.67 years; mode = seven years). The patients attended a total
of 1,735 visits, with an average of 7.26 visits (median = 11;
mode = 12).
With respect to the reasons for seeking chiropractic care, 47%
of patients (n = 112) presented for wellness care.
Of those patients
indicating a specific complaint, the most common were
musculoskeletal complaints (n = 54);
ear, nose, and throat problems (n = 10);
neurological problems (n = 7);
colic (n = 6);
digestion/elimination problems (eg, constipation and enuresis; n = 9);
immune dysfunction (eg, asthma; n = 3);
birth trauma (n = 7); and
others (n = 26).
With respect to treatment-related aggravations, complications,
or improvement, these were not mutually exclusive for
each patient. Of the 239 clinical cases, 162 parents reported
treatment-related improvements, two reported treatment-associated
aggravations, and none reported treatment-associated complications.
Of the two treatment-associated aggravations, one
was a report of soreness of the knee following care to address a
knee complaint, and the other was stiffness of the cervical spine
following SMT to address cervical spine dysfunction.
Of the types of treatment-associated improvements in relation
to their indicated presenting complaints, the most common reported
improvements were decreased pain (n = 33), improved
mood (n = 18), and increased immune function (n = 17).
treatment-associated improvements unrelated to the
patients’ initial clinical presentation were reported by many parents.
The three most commonly reported improvements were
immune system–related improvements (eg, sick less often; n = 34),
improved sleep; n = 27), and
improved emotional state or mood (eg, calmer or happier; n = 19).
In all, 98 patients were
reported as having improvements that were unrelated to their
primary reason for seeking chiropractic care.
The area of greatest controversy regarding the safety of chiropractic care has been that of SMT of the cervical spine. DiFabio  examined 177 cases involving SMT of the cervical spine as reported in 116 articles published between 1925 and 1997. Although the subjects’ age ranged from four months to 87 years, the majority of the cases involved adult patients (average age 39.6 years), and those involving children (ie, aged <18 years) were not well described. The most frequently reported injuries involved arterial dissection or spasm, lesions of the brain stem, and Wallenberg syndrome. The “other” category included visual deficits, hearing loss, balance deficits, and phrenic nerve injury. Ernst  described two cases associated with an adverse reaction to SMT. One case involved an infant with congenital torticollis treated with chiropractic spinal manipulation.  Within a few hours of receiving care, the child suffered from respiratory distress, quadriplegia, and seizures. A holocord astrocytoma with excessive acute necrosis was found and resected. The second case involved a three-month-old girl treated by a German physiotherapist with forced rotation and retraction of the head.  As a result of the care rendered, both vertebral arteries dissected, causing ischemia of the caudal brain stem with subarachnoid hemorrhage. The diagnosis was confirmed with magnetic resonance imaging, and the child died.
Second only to chiropractors in frequency, osteopaths often perform SMT on patients as part of their treatment approach. To address the issue of safety of pediatric osteopathic SMT (OSMT), Hayes and Bezilla  performed a retrospective review of medical records of pediatric patients receiving OSMT. Treatment-associated aggravations and complication as previously defined were documented. Of 502 records reviewed, 346 files met their inclusion criteria (ie, patient received two or more office visits) for analysis. No OSMT-related complications were documented. Nine percent (n = 31) of 346 patients reported an OMT-associated aggravation; specific reports included worsening symptoms (n = 7), behavior problems (n = 5), irritability (n = 5), pain (n-4), soreness (n = 4),
headache (n = 2), dizziness (n = 1), flulike symptoms (n = 1), treatment reaction (n = 1), and tiredness (n = 1). Based on their findings, Hayes and Bezilla  concluded that OSMT appears to be a safe treatment modality for the pediatric population.
Vohra et al  performed a systematic review of the literature documenting adverse events associated with pediatric SMT. Using eight databases and spanning a timeline of 104 years of scientific publications, Vohra et al  found only 14 instances of
adverse events associated with pediatric SMT. The adverse events include irritability (n = 1), loss of consciousness (n = 1), midback soreness (n = 1), acute lumbar pain (n = 1), headache and stiff neck (n = 1), severe neurological deficits (n = 5), anterior dislocation of the atlas and fracture of the odontoid axis
at C2 (n = 1), atlas dislocation (n = 1), and death (n = 2). Ten of the 14 cases were attributed to chiropractic. Controversy remains around the interpretation of the findings of this review. Five of the 10 cases involved adverse events that were minor, self-limiting, and did not require hospitalization or medical attention. In the cases involving severe neurological loss or spine fracture or death, the patients had a preexisting medical condition and/or had a history of neurological trauma, which make it difficult to clearly attribute the adverse event to the SMT
Miller and Benfield  recently published a three-year retrospective analysis of adverse events associated with pediatric SMT
at the Anglo European College of Chiropractic. Based on 697 children attending 5,242 patient visits, the authors reported that minor adverse reaction is likely to occur at the rate of approximately one per 100 children, or one reaction reported for every 749 treatments in their patient population. Two potential concerns regarding this review are the fact that an adverse event was based solely on parental report of excessive crying, and that the study was performed at a chiropractic teaching clinic with SMT rendered by chiropractic students. Questions remain regarding whether excessive crying on parent report is an adequate way to
evaluate adverse effects, and also regarding whether the outcomes of care rendered by students can be generalized to the overall practice of pediatric chiropractic.
Our survey of chiropractors reported that 0.51% of the patient population, or one in 1,812 patient visits resulted in a minor adverse events. The results from our parent survey indicate 0.83% of the patient population, or one in 867 clinical encounters, resulted in a minor adverse event. All reported aggravations
(from chiropractor and parent survey) were minor, self-limiting, and did not require hospitalization or medical attention. More importantly, the complaints were addressed by the treating chiropractor in subsequent visits and did not dissuade the parent from continuing care for their child.
Based on the National Cancer Institute’s  the reported adverse events reported herein were mild (ie, minor, no specific medical intervention, asymptomatic laboratory findings only, radiographic findings only, marginal clinical relevance) in nature. Minor side effects have been reported in 30% to 55% of adults receiving chiropractic SMT, [20-23] whereas in this study, less than 1% of the pediatric population experienced minor adverse events based on chiropractor and parent responders. Several factors may contribute to the low prevalence of adverse events, including possible underreporting of adverse events, limitations in our study design, and selection bias in patients choosing to participate. It is also possible that chiropractors and other clinicians performing SMT in children, aware as they are of the unique biomechanical features of the pediatric spine,  are more cautious in their approach than some may be in their approach to SMT in adults. The forces applied during SMT in children are much less than those applied to adults; contact points are altered, patient and chiropractor positions are modified, and low force techniques are compared to high-velocity techniques may be applied less frequently. Also, the malleable and hypermobile nature of the pediatric spine may confer a greater amount of adaptability in the pediatric spine as compared with the typical response seen in adults.
Chiropractic and Wellness Care
According to Jean and Cyr,  pediatric patients use CAM approaches for a wide variety of health issues, but principally for
chronic conditions involving musculoskeletal, psychological, and infectious problems. Spigelblatt et al  found that the three
most common presenting conditions/reasons for children seeking chiropractic care were respiratory; ear, nose, and throat problems; and musculoskeletal conditions. Nyiendo and Olsen  examined the characteristics of 217 children attending care at a chiropractic college teaching clinic and found that 42% suffered from musculoskeletal complaints, 20% from nonmusculoskeletal complaints, and 33% attended the clinic for general physical examination. Verhoef and Papadopoulos  examined the treatment of patients aged less than 18 years by Canadian chiropractors and found that musculoskeletal conditions were the most common presenting complaints, followed by asthma and headaches. The findings of our study support the popularity of musculoskeletal conditions as a presenting complaint in the pediatric population insofar as when there is a specific condition indicated.
An important finding of our study, however, is the high frequency with which children were brought to the chiropractor specifically for wellness care. As pointed out by Hawk, [27, 28] chiropractic has at its core a vitalistic and holistic theoretical framework and approach to patient care,
which incorporates a number of prevention and health promotion strategies, [27-30] particularly in the training of chiropractors. With the formalization of the model course for public health education in chiropractic colleges  and inclusion of public health preventive measures within the scope of chiropractic practice,  chiropractic is actively moving toward becoming a “wellness profession.” [27-31] The findings of our study demonstrate that this evolution is being manifested in the clinical practice of pediatric chiropractic. The frequency of wellness care as a motivation for chiropractic care of children was first documented by Rubin.  In examining the presenting complaints of new patients to his pediatric clinic, he found that wellness care was a common reason for presentation, along with spinal, respiratory, stomach, and sleep problems. Some studies also show a similar phenomenon in adults; in an international survey of sacro-occipital technique in adult patients, Blum et al  found that 42% of 1,316 patients presented for care either for wellness, prevention, or to reduce their risk of illness or injury. Kemper,  in addressing the issue of effectiveness of CAM therapies for children, admonished that to answer the question of whether or not CAM therapies work, one of the essential components must be that the families’ goals and expectations of treatment be elicited systematically. The role of wellness care in a family’s choice to pursue chiropractic care should be part of this evaluation
This study has several limitations. One limitation of our study is
the possible underreporting of adverse events by both chiropractors
and parents predisposed to view SMT in a positive light.
Selection bias (ie, volunteer bias) and measurement bias (ie,
attention bias) likely played a role in the results obtained in our
study. The PBRN chiropractors were selected mainly from the
ICPA membership; members of the ICPA are interested in promoting
the chiropractic care of children and wellness care.27,36
Also noteworthy is the bias on the part of the parent population,
as they were recruited from the PBRN. Selection bias may exist
in that only those parents with positive outcomes of care or lack
of adverse events in the care of their child may have been selected.
Additionally, studies continue to support the idea that
parent CAM users are more likely to use CAM use for their
children.24 It is likely that our parent responders were also receiving
chiropractic care under the paradigm of wellness care.
To the best of our knowledge, this is the first study of its kind
addressing the safety and effectiveness of pediatric chiropractic
SMT in a practice-based research setting. The results of both our
practitioner surveys and our parent surveys demonstrate a highly
perceived effectiveness for pediatric chiropractic care as well as a
high level of safety. We advocate continued research in this area,
with larger prospective cohorts incorporating the covariates of
safety and effectiveness of pediatric SMT.
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