Symptomatic Classification of Whiplash Injury and the Implications for Treatment
SOURCE: J Orthopaedic Medicine 1999; 21 (1): 22–25
Khan S, Cook J, Gargan M, Bannister G
University Department of Orthopaedic Surgery,
Gargan and Bannister are renowned orthopedic trauma researchers from the Department of Orthopedic Surgery, John Radcliffe Hospital in Bristol, Oxford, England. In 1994, they published a paper in the European Spine Journal on the recovery rate of patients with whiplash injuries, and discovered thatIF a patient was still symptomatic after three months, there was almost a 90% chance they would remain so. 
In 1995 they co-published a study with Woodward  that found that 93% of the chronic whiplash patients they studied experienced significant improvements with chiropractic care.
Chiropractic care in this study consisted of spinal manipulation, PNF and cryotherapy. Most of these 28 patients had already had prior medical treatment with NSAIDs, soft collars and physiotherapy.
Their third study reviewed conventional medical treatment for whiplash care, finding that it “was disappointing.”
The authors also found that:
“Chiropractic is the only proven effective treatment in chronic cases.”
The objective of their new study was to determine which type of chronic whiplash patient would benefit the most from chiropractic treatment. 
They separated patients into one of 3 groups:
Group 1: patients with “neck pain radiating in a ‘coat hanger’ distribution, associated with restricted range of neck movement but with no neurological deficit.”
Group 2: patients with “neurological symptoms, signs or both in association with neck pain and a restricted range of neck movement.”
Group 3: patients who described “severe neck pain but all of whom had a full range of motion and no neurological symptoms or signs distributed over specific myotomes or dermatomes.” These patients also “described an unusual complex of symptoms,” including “blackouts, visual disturbances, nausea, vomiting and chest pain, along with a nondermatomal distribution of pain.” (more…)