Chiropractic Care of Acute Mechanical Neck Pain - A Practice-Based Study

Acute neck pain (ANP) is a common condition thatultrasound, massage (most commonly used), heat,
has been shown in some studies to affect over 40%electrical stimulation, and cryotherapy. Soft tissue
of the population. Accordingly, many Chiropractorstechniques (e.g., trigger point therapy) were also
treat patients with this condition, even though therecommonly used. Further, advice about activities of
is little research evidence to support it. It should bedaily living was given to the majority of patients,
noted, however, that no form of treatment hasespecially exercise recommendations.
been shown to be clearly effective for this condition1,235 distinct cervical spine manipulations were
and, in general, the condition has not been studiedperformed, which were mostly carried out with the
very well. In fact, a systematic review by Vernon etpatient in a supine position. 74% of the manipulations
al concluded that there were very few high-qualitywere applied below the level of C4, most commonly
clinical trials for any conservative treatments that areat the level of C6.
commonly used to treat ANP.Clinical Application & Conclusions:
There are a variety of reasons why so little researchPatient improvements were observed when
has been carried out on ANP, but mainly it is becausecomparing sequential evaluations on all outcomes and
acute patients are often in the subacute or chronicnearly all of the patients who responded to the
stage by the time they are included in a clinical study.satisfaction questionnaire were very satisfied or
Because of this methodology problem, the currentsatisfied with their chiropractic care. These results
study used a practice-based research (PBR) model incompare favorably with the small number of other
order to shorten the delay between patientstudies that have looked at chiropractic care for ANP.
recruitment and the beginning of chiropractic care.This study's main conclusion was that the
Hence, ANP patients would be much more likely topractice-based methodology that was utilized is a
be in the acute stage when they entered the study.feasible way to investigate the management of ANP
The purpose of this study was primarily to establishby chiropractors. That being said, it should be noted
a chiropractic PBR network and to determine thethat it was very difficult to obtain follow-through
feasibility of using it to investigate chiropractic carefrom many of the doctors. Recruiting the
for patients with ANP. The current paper mainlychiropractors was fairly easy; a number of them
reports the study's treatment outcomes, includingexpressed interest in participating, enrolled in the
pain, disability, and patient satisfaction with the carepractice-based network, and promised to recruit
they received.patients. However, most did not even begin to fulfill
Pertinent Results:their obligation. Only 10 out of 28 chiropractors who
• A total of 99 ANP patients were included in theinitially agreed to participate actually collected and
study; 34 (37.8%) were men and 56 (62.2%) weresupplied data and most of the data came from just
women; the mean age of the group was 41.6 years.4 of the chiropractors. As the primary investigator of
• Ten chiropractors actually contributed data,this study, I urge readers who have the occasion to
despite the fact that 28 chiropractors agreed toparticipate in PBR to do everything in their power to
participate. The mean number of cases contributedcooperate with the investigators. Many investigators
by the chiropractors was 9.2, but the range wasshy away from PBR because of its known difficulties,
from 1 to 54, which was rather wide. Four of theeven though we as a profession could feasibly and
chiropractors were very active at recruiting subjects,economically multiply our research efforts if more
contributing 89% of the total data on the patients.PBR studies were carried out.
• Progressive improvement of all outcomeIt is interesting that the rate of adverse effects in
measures was reported at each of the datathis study was only 7.8% in patients where data was
collection points, except for a slight worsening of theavailable. In contrast, other studies have reported
Characteristic Pain Intensity (CPI) score at week 8.rates up to 6 times higher (2-4). Perhaps some of
• Sixty-two (68.9%) of the patients completedthis difference was due to the way the data were
the chiropractic care that was initially recommendedcollected. In the current study, the chiropractors
to them.reported adverse effects that they observed in their
• Only 30% of the ANP episodes were caused bypatients, whereas the patients completed
trauma, which were primarily (70% of the cases)questionnaires in the other studies. There are
related to injuries sustained in automobile collisions.problems with both methods. For instance, the
• A prior history of neck pain was reported bypatients may check off a number of selections in a
54% of the patients and secondary conditions werequestionnaire when presented with a laundry list of
reported by 62% of them, mainly involving back pain,symptoms. The power of suggestion (response bias)
headache, and/or an upper extremity problem.may prompt them to list adverse effects that they
• Very few of the patients were referred towouldn't otherwise think of. An example is fatigue
other healthcare providers: 4 to medical doctors andfollowing manipulation, which is a question asked in
2 to massage therapists.some of the above mentioned studies. I have
• Patients were overall highly satisfied with theirthrough the years had a number of patients tell me
chiropractic care, with 47 out of 49 (96%) of themthat they felt very relaxed and were able to sleep
indicating that they were either "Very satisfied" orsoundly for the first time in years after their first
"Satisfied" and 98% of them indicating that theyadjustment. These patients considered these
"Definitely would" or were "Very likely" to choose"adverse effects" to be very positive, but they
chiropractic care again if they ever noticed a similarwould appear to be negative effects in one of the
problem again. Patient satisfaction responses werestudies because the patient would have selected the
provided by 49 of the patients."fatigued" response.
The chiropractors reported that 7 patients hadThe chiropractor conveying the patient's adverse
transient minor adverse effects to chiropractic care;effects as was done in the current study may also
7.8% of the patients where data was available.lead to problems; for instance, the patient may not
Symptoms included:tell the doctor about minor symptoms, the patient
• increased neck pain in 5 patients (2 were verymay leave care (possibly related to a severe reaction
mild, 2 mild, and 1 moderate)to treatment), the chiropractor may think that the
• dizziness in 1 (moderate)adverse effect was not related to treatment, etc.
• the "Other" category was selected in 1 caseThe best way to query patients about adverse
(mild)effects to chiropractic care has not, in my opinion,
Most of the patients (63) received physical therapybeen devised yet and more studies are certainly
modalities in addition to manipulation, includingneeded.